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Thallus Stock Photos and Images
RMCYW5XE–Reindeer Ramalina farinacea fruticose lichens and moss growing amongst foliose lichens on living oak bark tree trunk
RMMA73J5–. Elementary botany . Fig. 122. Antheridia of fucus, branched threads. Fig. 123. Fig. 124. on Antheridia of fucus with Egg of fucus surrounded escaping spermatozoids. by spermatozoids. thallus, and the conical end projects strongly above the surface. The car- pospores are grouped in radiating threads within the oval c vity of the
RM2AG8NAX–. Foundations of botany. f an irregularlyexpanded growth somewhat leaf-like in texture. It is best to be wetfor study. Is it separable from the bark to which it is attached oris it combined with it (incrusted) ? Describe the general outline ofthe margin, the general color, and any special variations of colorabove, also below. How is the thallus attached to the bark ? TYPES OF CRYPTOGAMS; THALLOPHYTES 271 329. The Fruit. — Look for small lance-shaped disks seated uponthe thallus. Note the approximate sizes and color within andwithout. These disks are called apotJiecia. Note the very minuteblack
RMPG4595–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. CHAP. II.—DIFFERENTIATION OF THALLUS.—COMPOUND SPOROPHORES. 55 the apex of the pileus soon cease to lengthen; they become the tissue of the middle of the pileus, while as the margin advances the hyphae which run into it send out numerous straight or curved branches upwards and outwards, which in their turn soon cease to elongate and form the general tissue of the pileus (Fig. 24 b). Closely crowded branches from the under surface of the layer which runs into the margi
RMW01EEF–Archive image from page 80 of Die gallen der pflanzen, ein. Die gallen der pflanzen, ein lehrbuch für botaniker und entomologen diegallenderpfla00ks Year: 1911 Die ffalleiitraffeudeii Pflauzeii. 3. Flechten. //?l 01 y An vielen Flechten treten zuweilen abnorme Auswüchse auf, die als Cephalodien bezeichnet werden; sie entstehen unter dem Ein- fluß „fremder' Cyanophyceen, welche von außen irgendwie in den Thallus ein- „ gedrungen sind und im Verein mit dem Pilz der Flechte kleine Höcker oder Warzen oder anders gestaltete Massen bilden können, die sich von den nor- malen Teilen der Flechte ne
RF2A7NX0D–Great diversity of wild mushroom species in the beech forests of Sierra de Urbasa, Nafarroa, Northern Iberian Peninsula
RM2DDRAK3–One of the commonest and most distinguishable lichens, the Golden Crust is common in many habitats and especially on rocks above the tide line
RF2K4J7X5–Agaric mushroom gills under cap macro close up photo, depth of field photography. Abstract macro background with brown mushroom lamella for web banner
RMCYW5PJ–Reindeer Ramalina farinacea fruticose lichens and moss growing amongst foliose lichens on living oak bark tree trunk
RMMAAJ4B–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Seytosiphon lomentarius (Li/mib.) J. Ag. a Alge in natürlicher Grösse, b Stück eines Querschnittes durcli den Thallus mit -v-ielfächerigen Zoosporangien und zwei Nebenfäden. Vergr. 350.
RM2ANENE1–Organography of plants, especially of the archegoniatae and spermaphyta . a crisped one-layered cell-surface at the margin of its many-layered thallus, giving it a strik-ing appearance as it grows uponthe Cordilleras of Merida. Themarginal fringe arises out of the middle lobe in the forking ofthe thallus -, and it reminds usof the relationships which havebeen described in Aneura endi-viaefolia ^. Dendroceros. The remark-able relationships of Dendrocerosfoliatus (Fig. 51) were touched upon when speaking of the formation ofleaves, and it was shown that on the edge of the thallus cap-like formati
RMPG05WG–. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. THE JUN GERM ANN I ALES 79 level of the thallus, instead of penetrating into it, as is usually the case. The stalk or portion between the capsule and foot remains short, and in longitudinal section shows about four. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Campbell, Douglas Houghton, 1859-1953. New York, The Macmilla
RMT038NW–Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . drlrabenhorstskr0601rabe Year: 1906 Fig. 158. Re 1j0u 1 ia hemisphaerica. I'flaiize mit weiblicher Intiorescenz und dahinter, im Thallus eingesenkt, ein Antheridienstand. Verg. Vi-
RF2A7NRJ6–Great diversity of wild mushroom species in the beech forests of Sierra de Urbasa, Nafarroa, Northern Iberian Peninsula
RM2DCC37F–A familiar and colourful lichen, Yellow Scales is particularly spectacular at the coast where it proliferates on rocks and sea walls
RF2K4JBGK–Big agaric gills cap of macrolepiota procera parasol mushroom lies on white background, brown mushroom with high stripe. Edible parasol mushroom with
RMC7WX9N–Orange sea lichen Caloplaca marina , Xanthoria parietina and Ramalina siliquosa colonizing the upper shoreline zone seashore
RMMAAJC5–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Grateloupia filieina (Wulf.) A(i. <t Alge in natürlicher Grösse, b Stück eines (Juerschnittes durch einen Tetra- sporangien-tragenden Theil des Thallus. Yergr. ca. 100. (Nach Kützing.)
RM2AWYA2A–The structure & development of the mosses and ferns (Archegoniatae) . FiG. 67.-—Anthoceros fiisiformis (Aust.). A, Young plant showing the first rhizoid (r) ; B, upper partof an older one with the first mucilage cleft {st) ; x, the growing point, X215. worts, which are distinguished at once from Anthoceros by thevery characteristic form of the thallus. This has a massivemidrib, projecting below, but the rest of the thallus is but onecell thick and forms lateral wings which are much foldedand lobed, so that the aspect of the plant is somewhat like aFossombronia. As in Anthoceros, some species h
RMPG05YJ–. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. 40 MOSSES AND FERNS CHAP, the thallus is composed of a series of large polyhedral air- chambers arranged in several layers, and separated by walls but one cell thick. The upper chambers communicate with the outside by pores, quite like those of the Marchantiacese. The ventral tissue and midrib are rudimentary, and the very long pendent ventral lamellae are produced separately in trans- verse rows, which, however, become displaced by the later growth of the thallus, so that their original arran
RMT03RPW–Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . drlrabenhorstskr0601rabe Year: 1906 Fig. 154. Plag'iocliasma rupestre. a Thallus mit Intiorescenzen. Verg. Vi- ^ einfi-üchtig-e, c zweifrüclitige InHorescenz. Verg. â '/i.
RF2A7NXD5–Great diversity of wild mushroom species in the beech forests of Sierra de Urbasa, Nafarroa, Northern Iberian Peninsula
RM2DCG6E0–One of the best known and most common of the Lichen family, Orange Crust is found on a wide variety of surfaces from rocky seashores to tree bark
RF2K4J8PB–Agaric mushroom gills under cap macro close up photo, depth of field photography. Abstract macro background with pale pink mushroom lamella for web ba
RMD060E0–Reindeer Ramalina farinacea fruticose lichens and moss growing amongst foliose lichens on living oak bark tree trunk
RMMCK521–. FiG. Z2?,.—Ciphakuros Mi/coalca. Section thiough the epideimis of a leaf of Camellia, showing the thallus-like disc with haustoria. (After Cunningham.) ance, but generally forms flattened thalloid discs several layers of cells thick and attached firmly to leaves by means of rhizoids (Fig. 328). Hairs are produced from the thallus-discs, especially
RM2AFJK5G–. The structure and development of mosses and ferns (Archegoniatae). In B. lunaria, according to Hofmeister ((i), p.308), the archegonia are mostly formed upon the ventralsurface. A section of the prothallium shows that the superficial tis-sues are composed of relatively transparent cells, while the innertissue, especially toward the ventral side of the thallus, has verydense contents, there being an oily substance present, as well as vu PTERIDOPHYTA—FILICINE^—OPHIOGLOSSACEJE 239 granular matter. In these cells is found an enckjphytic fungus,which probably acts as a mycorhiza. Multicellular ha
RMPFGKRJ–. Dansk botanisk arkiv. Plants; Plants -- Denmark. F. Børgesen: Rhodophyceæ of the Danish W. Indies. 239 branchlets and ramuli. By this and also by the very regular alternating of the branchlets the plant has often a fine, feathery appearance. To judge from J. Agardh's description of Spyridia complanata this plant seems to be very like the present form, but, while my plant has a terete thallus, Agardh's plant is said to be compressed. On account of this I prefer to consider my plant as a form of Sp. aculeata. Of this form 1 have had specimens from both shallow and deep water (about 30 meters).
RMRYG9GG–Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr02rabe Year: 1885 '*r>^'? '''1 Cruoria pellita iLifiif/h.) Fries. (I Stück eiiii's Yevtikalschnittes durch den Tetrasporangien - trag-endon Thallus. VergT. 75. h Thallusfäden (nhorer Theil) mit Antheridien an der Spitze. Vergr. 250. (Nach Thuret.)
RF2A7NR1F–Great diversity of wild mushroom species in the beech forests of Sierra de Urbasa, Nafarroa, Northern Iberian Peninsula
RM2DC0JKD–Xanthoria parientina is a very common orange lichen that will grow on many types of substrate. It is more deeply orange in sunlight and paler in shade
RF2K4J9AE–Big agaric gills cap of macrolepiota procera parasol mushroom lies on white background, brown mushroom with high stripe. Edible parasol mushroom with
RMC7WX8G–Orange sea lichen Caloplaca marina , Xanthoria parietina and Ramalina siliquosa colonizing the upper shoreline zone seashore
RMMAAJ7X–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Melobesia farinosa Lamour. a .hinger Thallus (Flächenansicht). Vergr. :'0Ü. h Eandparthie des entkalkten Thallus. Vergr. (500. c Vortikalschnitt durch ein Conceptakel mit Tetrasjw- rangien. Vergr. .5.)i). (Nach Eosanoft'.i
RM2ANEK35–Organography of plants, especially of the archegoniatae and spermaphyta . e curiosorum, xviii. I (1S36). ^ Lindenberg, op. cit., p. 479. r>y this he meant the scales. II FORMATION OF TUBERS 67 often segmented ^ root-threads, which are coloured at the junction of the segmentslike the under-surface of the thallus but are otherwise hyaline or granular. Thesefibres often thicken into a club-like or spherical form in which case the red or browncolouring-matter accumulates at these thickened ends which subsequently flattenand develop into new plants. This statement by Lindenberg allows us to conj
RMPG217P–. A textbook of botany for colleges and universities ... Botany. ROOTS AND RHIZOIDS 517. Reactions to external conditions. — Rhizoids are progeotropic,' prohy- drotropic, and apophototropic, thus agreeing with roots and differing greatly from root hairs. In Marchantia gemmae or fern prothallia, rhizoids may be induced at will on either side of the thallus by exposure to the proper stimuli (moisture, darkness, contact, etc.); after the rhizoids appear, their growth direction may be altered by altering their relation to light, moisture, or gravity.' When Lunularia is grown in solutions defi- cie
RMT03G36–Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . drlrabenhorstskr02rabe Year: 1885 Caulacanthus vistulatus (Mert.) Kfiff. u Alge in natürlicher (irösse. h <^uers€hnitt durch den Thallus. Veryr, ( Nach Kützing.) c Tvängsschnitt dnrch die Spitze eines Aestchens und e carp. Vergr. !)(). (Nach Bornet.) ca. IUI), in C'vsto-
RF2A7NPHW–Great diversity of wild mushroom species in the beech forests of Sierra de Urbasa, Nafarroa, Northern Iberian Peninsula
RM2DC0JHF–Xanthoria parientina is a very common orange lichen that will grow on many types of substrate. It is more deeply orange in sunlight and paler in shade
RF2K4JB98–Agaric mushroom gills under cap macro close up photo, depth of field photography. Abstract macro background with brown mushroom lamella for web banner
RMCYW5FY–Reindeer Ramalina farinacea fruticose lichens and moss growing amongst foliose lichens on living oak bark tree trunk
RMMAAJF0–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Cruoria pellita iLifiif/h.) Fries. (I Stück eiiii's Yevtikalschnittes durch den Tetrasporangien - trag-endon Thallus. VergT. 75. h Thallusfäden (nhorer Theil) mit Antheridien an der Spitze. Vergr. 250. (Nach Thuret.)
RM2ANF145–Organography of plants, especially of the archegoniatae and spermaphyta . Fig. 26. Plagiochasma Aitonia. Maleplant, with five antherldial groups, seen fromabove. The scales upon the under side bendover the vegetative point. The youngerantheridial groups are protected also byoverlapping scales which form their perichae-tiutn. Magnified 8.. Fig. 27. Marchantia chenopoda. An Andine species. Apexof the thallus seen from below-. There are two rows of scales.Towards the upper left side of the figure an additional one isvisible. Each scale has an apical appendage which originallyarched o er the vege
RMPG02A0–. Photomicrographs of botanical studies. Photomicrography. Limiting tissue of thallus. Pr(jtective hairs. Oogonia in varicius stages of development. iMouth of conceptacle. 4.—Y.S. Apothecia, Parmelia parietina.. Apothecia containing spores. Mycelium. Unicellular alga:. Rhizoides or root-hairs.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Flatters, Milborne & McKechnie Ltd. Manchester : Flaters, Milborne & McKe
RMT03XH5–Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . drlrabenhorstskr02rabe Year: 1885 y^< .<N finTWuriainiriL Melobesia farinosa Lamour. a .hinger Thallus (Flächenansicht). Vergr. :'0Ü. h Eandparthie des entkalkten Thallus. Vergr. (500. c Vortikalschnitt durch ein Conceptakel mit Tetrasjw- rangien. Vergr. .5.)i). (Nach Eosanoft'.i
RF2A7NW3X–Great diversity of wild mushroom species in the beech forests of Sierra de Urbasa, Nafarroa, Northern Iberian Peninsula
RM2DC0JPG–Xanthoria parientina is a very common orange lichen that will grow on many types of substrate. It is more deeply orange in sunlight and paler in shade
RF2K4JAPM–Agaric mushroom gills under cap macro close up photo, depth of field photography. Abstract macro background with brown mushroom lamella for web banner
RMD2DFYR–Reindeer Ramalina farinacea fruticose lichens and moss growing amongst foliose lichens on living oak bark tree trunk
RMMAAJ3Y–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Aglaozonia reptans (Crouan) Kütz. a Thallus mit Sori in natürlicher Grösse, h Stück eines Vertikalschnittes vom Thallusrande. Vergr. 290. c Schnitt durch einen Sorus einfächeriger Zoosporangieru Vergr. 400. (Nach Eeinke.)
RM2AG8KX5–. Foundations of botany. isjuncta. (Enlarged.) /r, female receptacle ; c, cups with gemmae. THE STUDY OFMARCHANTIA 335. Occurrence.— Marchantia grows on soilor rocks in damp shaded places and is widely distributed. 336. The Thallus. —In general form the thallus bears some resem-blance to that of some of the lichens, as Parmelia, but is plainlydifferent in color, mode of branching, and internal structure underthe microscope. Under the microscope (see below) the individualcells may be compared with those of the medullary layer in Physcia. Note the color and general shape of the thallus and study
RMPG41DD–. Essentials of botany. Botany; Botany. Fig. 190. Part of Male Thallus of a Liverwort (Marchantia disjuncta). (Enlarged.) mr, male receptacle.. Fig. 191. Part of Female Thallus of M. disjuncta. (Enlarged.) fr, female receptacle; c, cups with buds.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Bergen, Joseph Y. (Joseph Young), 1851-1917. Boston, Ginn
RMRYT663–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . drlrabenhorstskr0601rabe Year: 1906 K / / y i •'^m:' ff > #-' k ij »^^*»^*'^*S!^ N iJ Fig. 113. Eiccia Heuriquesii. c Thallus. Verg'. 7i. schnitte. Yerg. ^7i- jt ^JQi Grunde verwachsene Raudzilien. V e Thallusquer- (nach Levier.
RF2A7NTW7–Great diversity of wild mushroom species in the beech forests of Sierra de Urbasa, Nafarroa, Northern Iberian Peninsula
RM2BY6T07–A slow-growing, patch forming Shield Lichen grows on a boulder of black lava, a very inhosptitable enviroment to grow as it is prone to extremes
RMCYW59X–Reindeer Ramalina farinacea fruticose lichens and moss growing amongst foliose lichens on living oak bark tree trunk
RMMAAJ6M–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . fr,! i i( aLl. iin f^V^ fli, Taonia atomaria (Woodw.) J. Äff. a Alge mit Tetras})orangien in natürlielior Grösse, b Stüclv eines Querschnittes durcli den Thallus. Yergr. ca. 100. (Nach Kiitziiig).
RM2AFN9T4–. The structure and development of mosses and ferns (Archegoniatae). r pits to be formed between the adja-cent cells (Fig. 3, C). The subsequent divisions in the papillaeare all transverse, and this transforms each papillate surface cellinto a row of cells which, as it elongates, causes the pitsbetween it and the adjacent ones to become deep but narrowair-channels, so that in the older parts of the thallus the upperportion is composed of closely-set vertical rows of chlorophyll-bearing cells separated by narrow clefts opening at the surface. 26 MOSSES AND FERNS CHAP. In Riccia glauca, as well
RMPG41DH–. Foundations of botany. Botany; Botany. 272 POTJNDATIONS OF BOTANY 330. Examination of the Thallus. — The thallus of Physcia as seen in cross-section will be found to consist of four layers, the upper cortical, gonidial, mediillary, and the lower cortical. The cortical layers wiU be seen to serve for protection, answering the purpose of an epidermis or bark. The cells which compose them make what is called a false parenchyma, — resembling parenchyma in form but as to origin being trans- hyphse composing the medullary layer. Are there any cross-parti- tions? Do any cells appear circular, and i
RMT0CWT1–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr02rabe Year: 1885 Fi«-. 12S. fr,! i i( aLl. iin f^V^ fli, Taonia atomaria (Woodw.) J. Äff. a Alge mit Tetras})orangien in natürlielior Grösse, b Stüclv eines Querschnittes durcli den Thallus. Yergr. ca. 100. (Nach Kiitziiig).
RF2A7NWH9–Great diversity of wild mushroom species in the beech forests of Sierra de Urbasa, Nafarroa, Northern Iberian Peninsula
RM2BY6T7N–A slow-growing, patch forming Shield Lichen grows on a boulder of black lava, a very inhosptitable enviroment to grow as it is prone to extremes
RMCYW59N–Reindeer Ramalina farinacea fruticose lichens and moss growing amongst foliose lichens on living oak bark tree trunk
RMMCK64N–. FlG. 328.—C'lphnliUi-oif MjK'o'ahn. Section through the epidermis of a leaf of C'amellw, showing the thallus-like disc with haustoi-ia. (After Cunningham.) ance, but generally forms flattened thalloid discs several layers of cells thick and attached firmly to leaves by means of rhizoids (Fig. 328). Hairs are produced from the thallus-discs, especially
RM2ANEH29–Organography of plants, especially of the archegoniatae and spermaphyta . Fig. 70. Blyttia sp. Group of archegonia in verticalsection. Surrounding the group is the cup-like peri-chaetium and within this the primordium of the perianth J, J. Fig. 71. Symphyogyna. Group of archegoniain vertical section. To the left the perichaetiumwhich is composed of one simple scale only. Tothe right the thallus. The embryo has burrowedinto the tissue of the stem beneath the arche-gonium, this tissue has originated by growthaccompanied by cell-multiplication after fertiliza-tion. The groups of archegonia arc su
RMPG4EBD–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. CHAP. IT.^DIFFERENTIATION OF THE THALLUS.—SIMPLE SPOROPHORES. 47. Fig. 20. Pkytofhtkora in/estans, extremity of two simple sporophores. a forma- tion of the first gonidia on the tip of each branch, b two ripe gonidia on each branch, with the beginning of the formation of a third. Magn. about 200 times. put out branches bearing new sporangia. There is here therefore a cymose branching of the sporangiophores. The gonidiophores in Feronospora, which are also without tran
RMRYG8DC–Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr02rabe Year: 1885 trW < e9j Porphyra laeiniata (Lüjldf.) Ag. a Stück des vegetativen Thnllus, Flaelienansicht. h Queisclinitt durch den vege- tativen Thallus. c Stück des Tliallus mit reifen Spuren, Flächenansicht, d Quer- schnitt durch ein männliches Thallusstück, mit Antheridien. Vergr. aller Fig. 330. (Nach Thuret).
RF2A7NW22–Great diversity of wild mushroom species in the beech forests of Sierra de Urbasa, Nafarroa, Northern Iberian Peninsula
RM2T722X6–Golden Crust Lichen has become well-established on the ruins of a WW2 training facility. Lichens where the first orangaisms to move onto dry land and
RMCYW5EM–Reindeer Ramalina farinacea fruticose lichens and moss growing amongst foliose lichens on living oak bark tree trunk
![. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . K / / y i â¢'^m:" ff > #-' k ij »^^*»^*'^*S!^ N iJ Fig. 113. Eiccia Heuriquesii. c Thallus. Verg". 7i. schnitte. Yerg. ^7i- jt ^JQi Grunde verwachsene Raudzilien. V Stock Photo](https://c8.alamy.com/comp/MAB387/dr-l-rabenhorsts-kryptogamen-flora-von-deutschland-oesterreich-und-der-schweiz-k-y-i-mquot-ff-gt-k-ij-s!-n-ij-fig-113-eiccia-heuriquesii-c-thallus-vergquot-7i-schnitte-yerg-7i-jt-jqi-grunde-verwachsene-raudzilien-v-MAB387.jpg ". Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . K / / y i â¢'^m:" ff > #-' k ij »^^*»^*'^*S!^ N iJ Fig. 113. Eiccia Heuriquesii. c Thallus. Verg". 7i. schnitte. Yerg. ^7i- jt ^JQi Grunde verwachsene Raudzilien. V Stock Photo")
RMMAB387–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . K / / y i â¢'^m:" ff > #-' k ij »^^*»^*'^*S!^ N iJ Fig. 113. Eiccia Heuriquesii. c Thallus. Verg". 7i. schnitte. Yerg. ^7i- jt ^JQi Grunde verwachsene Raudzilien. V
RM2AFKKK1–. The structure and development of mosses and ferns (Archegoniatae). ds. Latersimilar filaments grow out from themarginal cells of the thallus, and acareful examination shows thatthey are septate, and closely re-semble the protonemal filaments ofother Mosses. Like those, theFig. z%. —sphagnum squarrosum. g^p^^ especially in the colourlcss Leafy shoot with sporophytes ^ ^ -^ (sp), borne at the end of leaf- oues, are strougly obliquc. iheseless branches, or pseudopodia, marginal protoucmal threads may, according to Hofmeister (i) andSchimper (i), produce a flattened thallus at their extremity,an
RMPG2N16–. The natural history of plants, their forms, growth, reproduction, and distribution;. Botany. 694 THE SUBDIVISIONS OF THE VEGETABLE KINGDOM. being present, they readily grow into fresh Lichens. In the majority of Lichens the Algae are arranged in a definite layer or stratum (c/. figs. 392 » and 387 ^); rarely are they distributed through the whole thickness of the thallus, as in the Gelatinous Lichens (Gollema, fig. 393 ^). Apart from these Gelatinous Lichens, the Discolichenes may be divided, according to their form, into Crustaceous, Foliose, and Fruticose Lichens. Crustaceous Lichens inclu
RMT0DA7N–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr02rabe Year: 1885 Fig. 191 â 'r' Ulva Laetuca (L.) Le Jol. F. genuina. a Alge in natürl. Grösse. & Flächen- ansicht. c Querschnitt durch den oberen, d Querschnitt durch den basalen Theil des Thallus. Vergr. von hâd ca. 200. (Nach Kützing.)
RF2A7NWDW–Great diversity of wild mushroom species in the beech forests of Sierra de Urbasa, Nafarroa, Northern Iberian Peninsula
RMCYW5HA–Reindeer Ramalina farinacea fruticose lichens and moss growing amongst foliose lichens on living oak bark tree trunk
RMMAAJ99–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Caulacanthus vistulatus (Mert.) Kfiff. u Alge in natürlicher (irösse. h <^uers€hnitt durch den Thallus. Veryr, ( Nach Kützing.) c Tvängsschnitt dnrch die Spitze eines Aestchens und e carp. Vergr. !)(). (Nach Bornet.) ca. IUI), in C'vsto-
RM2AJD0EF–Elementary botany . it is in riccia, and it will beinteresting to learn whether the sporogonium is essentially dif-ferent from what we find in riccia. 487. Homology of the gametophore of marchantia.—To see the relation of the gametophore to the thallus ofmarchantia take portions of the thallus bearing the female recepta-cle. On the under side note thatthe prominent midrib continues be-yond the thin lateral expansions andarches upward in the sinus or notchat the end, or at the side where thebranch of the thallus has continuedto grow beyond. The stalk of thegametophore is then a continuationof t
RMPG3YA2–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. CHAPTER V.—COMPARATIVE REVIEIV.—ASCOMVCETES. 227 formed closely woven thallus-structures (see page 43), which cause roundish red spots about I cm. in diameter in the still living green leaf; spermogonia and archicarps- make their appearance in the spots in the course of the summer. The Fungus does not go beyond the complete development and subsequent fertilisation of the archicarps during the summer, but falls to the ground in autumn with the leaf, and there the furth
RMT02HFT–An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian . ed2illustratedflo02brit Year: 1913 RIVKR-WEED lAMILV. Family 43. PODOSTEMACEAE Lindl. Xat. Syst. Ed. 2, 190. RivER-WEEO Family. 1836. Small aquatic fresh-water mostly annual fleshy herbs, the leaves usually poorly differentiated from the stem, the whole structure commonly resembling the thallus of an alga or hepatic, the small usually perfect flowers devoid of any perianth an
RF2A7NPPB–Great diversity of wild mushroom species in the beech forests of Sierra de Urbasa, Nafarroa, Northern Iberian Peninsula
RMCYW5GP–Reindeer Ramalina farinacea fruticose lichens and moss growing amongst foliose lichens on living oak bark tree trunk
RMMAAJ59–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . ,-^â/ /TA' ' - â )â f ^1 . ' S5i kl Punctaria latifolia Grer. a Alge in natürlicher Grösse, b Stück eines Querschnittes durch den Thallus mit ein- und vielfacherigen Zoosporangien. Vergr. 250. (Nach Bornet.)
RM2AXH7H6–Nature and development of plants . ose them cause aremarkable series of transformations in the cells that are cut offfrom the apical cell. The upper cells of the thallus, as soon asthey are formed at the growing point, are exposed directly tothe air and light, and they develop chlorophyll and grow up intovertical rows or plates just as you have already noticed in thepalisade chlorenchyma of the leaf (Fig. 180, A). At an earlyperiod these rows of green cells become separated so that airspaces arise between them, and thus the chlorophyll-bearing cellsare brought into direct contact with the atmo
RMPG4DW6–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. 402 DIVISION III.—MODE OF LIFE OF THE FUNGI. thCTcfore be separated from it without much injury; and the crttstaceous (thallus crustaceus, lepodes), a flat crust on or in the substratum and adhering firmly to it at least by its whole under surface, so that it cannot be separated from it without injury. The genera Cladonia and Stereocaulon are peculiar, having shrub-like formations (podetia) rising from scaly or granular foliaceous bodies (the thallus or protothallus o
RMT3XFG3–Archive image from page 496 of Die Natürlichen Pflanzenfamilien nebst ihren. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet dienatrlichenp02engl Year: 1897 Rhodomelaceae. (Schuntz, Falkenberg.) 479 75. Falkenbergia Schmitz. Thallus slielrund, feinfädig, seitlich verzweigt, mit allseilig auseinander spreitzenden, meist wirr durcheinander gekreuzten, gleichwertigen Zweigen. Sprosse lang gestreckt, ziemlich weich und biegsam, der ganzen Länge nach deutlich quergeglie
RF2A7NWXX–Great diversity of wild mushroom species in the beech forests of Sierra de Urbasa, Nafarroa, Northern Iberian Peninsula
RMDRB0AR–Reindeer Ramalina farinacea fruticose lichens and moss growing amongst foliose lichens on living oak bark tree trunk
RMMAAJ88–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . den) Zellenreihen gebildet, deren Zellen sich häutig durch horizontale Theilungen in kurze, senkrechte Zellenreihen um- wandeln, demnach der Thallus aus einer Zellenlage oder mehreren Lagen zonenartig über einander gesetzten Zellen besteht und centrifugal am Umfange fortwächst. Bisweilen ist der Thallus
RM2ANEBCB–Organography of plants, especially of the archegoniatae and spermaphyta . entlygreat difference between germina-tion of the spore and the develop-ment of gemmae is conditionedpurely by the lie of the gemmaeas they are formed. In Lejeunia also if the outerconditions are not favourable pro-embryo and gemma grow into athallus before the leafy plant isproduced, and this is normally the case in an epiphyllous species of Lejeuniawhich I found in Java and named L. Metzgeriopsis (Fig. 93). This remark-able plant has a thallus which is richly branched and bears appendages atthe margin,—cell-rows which
RMPG4AAW–. Botany for agricultural students . Botany. TRUE MOSSES (BRYALES) 421 cycle as shown in Figure 376. The Alga-Uke filament called protonema is comparable to the thallus of the Marchantias, and the leafy plants to the gametophores. Although the leafy plants or gametophores of Moss are not all of the gametophyte, they are the conspicuous part of it, the protonemas being microscopic in size. One protonema may produce many buds, and, therefore, many gametophores. In Moss the two generations are more noticeable than in the Liverworts. The gametophytes with their leafy gametophores present more diff
RMT3YMBD–Archive image from page 417 of Die Natürlichen Pflanzenfamilien nebst ihren. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet dienatrlichenp02engl Year: 1897 400 Rhodymeniaceae. (Scliniitz, Hauptfleiscli. II. Rhodymenieae. 4. HymenocladiaJ. Agardh (Fig. 234 i). Thallus abgeflacht oder flach, gabelig, handfg. oder fiederig gespalten, zeitiger Structur: Innengewebe ziemlich großzellig, zuweilen mit kleinen Zwischenzellchen; Außenrinde kleinzellig, undeutlich anliclinr
RF2A7NT0E–Great diversity of wild mushroom species in the beech forests of Sierra de Urbasa, Nafarroa, Northern Iberian Peninsula
RMDRB0D6–Reindeer Ramalina farinacea fruticose lichens and moss growing amongst foliose lichens on living oak bark tree trunk
RMME85EK–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet . Fig. 280. Nemastoma dichotoma 3. Ag. A Pfl. iu nat. Gr.; B Sclinitt durch den Thallus und ein Cystocarp. Thallus mit ziemlich dickem Mark nnd deutlich anticlinreihigen Rindenfäden. Gonimoblast mit mehreren Gonimolohen (lOOjl). (Nach Kützing.)
RM2ANF84T–Organography of plants, especially of the archegoniatae and spermaphyta . X. Fig. 4. Monoclea dilatata. /, 77, young antheridium in a pit of the thallus. Ill, female plant in longi-tudinal section showing the inception of young archegonia in a pit behind the apex. Drawn by Ruge from materialcollected by me on the Cordilleras of the coast of Venezuela. their passage, but at the same time their swelling into the form of a sausageis an important factor. The spermatozoids disperse afterwards when themucilage in which they are embedded becomes more fluid. 3. Development of the Antheridium. As we ha
RMPG16YR–. Fossil plants : for students of botany and geology . Paleobotany. 180 THALLOPHYTA. [CH. The nature and manner of formation of the various forms of coal should be dealt with in a later chapter devoted to the subject of plants as rock-builders, but in view of the recent statements as to the algal nature of these bituminous deposits it may not be out of place to state briefly the main conclusions of the French authors. MM. Renault and Bertrand regard each of the yellow bodies in the European and Australian Boghead as the thallus of an alga. To the form which is most abundant in the Kerosene sha
RMRYTTWJ–Elementary botany (1898) Elementary botany . elementarybotany00atki Year: 1898 Fig. 174. Nearly mature sporogonium of Riccia crystallina; Fig. 175- Riccia glauca; archegonium containing nearly mature spo- rogonium. sg spore-producing cells surrounded by single layer of sterile cells, the wall of the sporogonium. mature spore at the right fours are the spores. At this time the wall of the spore-case dis- solves, the spores separate from each other and fill the now en- larged venter of the archegonium. When the thallus dies they are liberated, or escape between the loosely arranged cells of th
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