RM2K3KBW9–Smooth stonewort (Nitella flexilis) growing in a garden pond, Wiltshire, UK, May.
RM2AX2KAP–Text-book of botany, morphological and physiological . Fig. 13.—Formation of tlie anthericlium n{Nitella flexilis (cf. Book II). ^ The firm connexion of the two daughter-cells before the formation of the partition-walloccurs also in a different manner, e.g. in Oedogonium (Hofmeister, I.e. pp. 84 and 162). Thepreliminary indication of the partition-wall by the appearance of a disc of granules in the boundaryplane is not universal, as is shown in the formation of the pollen of Funkia and of the spores ofFunaria. (Hofmeister, /. c. Fig. 20.) FORMATION OF CELLS. 17. FIG. 14.—Embryos in the embryo-
RM2JHTETY–Smooth stonewort (Nitella flexilis) growing in a garden pond, Wiltshire, UK, May.
RMPG1JKG–. The British Charophyta. Characeae. PLATE VIII. St. Groves del. NITELLA FLEXILIS. 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.. Groves, James; Bullock-Webster, George Russell, 1858- joint author. London, The Ray society
RM2EE2XR3–Smooth stonewort (Nitella flexilis) growing in a garden pond, Wiltshire, UK, May.
RMW1CEF0–Archive image from page 61 of Die krankheiten der pflanzen, ein. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker . diekrankheitende02fran Year: 1895 46 I. 5Xbfd)mtt: 5arafitifd)e Wi 6. Ch. Lagen-dri-dSc/imk). porangium mit einem fid) aiifflappciiben Serfef, bev mi)ceUaIc Seil eiitipringt noii einer nnterfialb beä poranijinmö in ber gfläfjrelle befinblidjen SSIafe. Stuf Nitella flexilis. 7. Ch, spinulosum Blytt'). 2lnf ben 3i)Öifporen üon Spiroygra. 8. Ch. Brebissonii Dang.) <x Coleochaete scutata. ig. 6. B. Chytridinm Olla, jiu
RMMAAHJC–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Nitella flexilis, gewöhnliche, etwas kräftigere Form. Natürl. Grösse.
RMPG1JPT–. The British Charophyta. Characeae. 52 BRITISH CHAEOPHYTA. ovoidal form. The lateral walls of the spiral cells subsequently break down, leaving the outer walls to form a single integument marked by spiral furrows along the lines of union. Incased and protected by the enveloping spiral cells the oosphere consists of a nucleated mass of protoplasm enclosed by a thin and extremely delicate. Pig. 22.—Development of oogonium of Nitella flexilis (after Sachs). o, oosphere; h, node-cell; c, enveloping cells; d, upper, and. d', lower cells of ooronula; e, turning cell. i. Early stages of the oogonium
RMRYG6YM–Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr05rabe Year: 1900 35 Seite des Blattes, bei monöcischen Arten direct unter dem Sporen- knöspchen (Fig. 24 a). Fig. 24. Fructificationsorgane von: a Chara hispida, b Nitella flexilis, c Tolypella glomerata, d Lychuotliamnus barbatus. Vergr. bei o u. c 50, bei b u. d -40. 3*
RMMAAHK4–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Fructificationsorgane von: a Chara hispida, b Nitella flexilis, c Tolypella glomerata, d Lychuotliamnus barbatus. Vergr. bei o u. c 50, bei b u. d -40. 3*
RMRH2EH3–. The British Charophyta. Characeae -- Great Britain. PLATE VIII. M. Groves del. NITELLA FLEXILIS. 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.. Groves, James; Bullock-Webster, George Russell, b. 1858. London, The Ray society
RMRYR39G–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . drlrabenhorstskr05rabe Year: 1900 133 Fig. 37. o 9 d Nitella flexilis. a fertiles Blatt, Vergr. 30; h Kern, Vergr. 45; c verschiedene fertile Blätter, Vergr. 9; d steriles Blatt, Vergr. 30; e Blattspitzen, Vergr. 45; f Krönchen, Vergr. 75; g f. subcapitata, natürl. Grösse.
RMMAAHHY–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . 9 d Nitella flexilis. a fertiles Blatt, Vergr. 30; h Kern, Vergr. 45; c verschiedene fertile Blätter, Vergr. 9; d steriles Blatt, Vergr. 30; e Blattspitzen, Vergr. 45; f Krönchen, Vergr. 75; g f. subcapitata, natürl. Grösse.
RMRDHMXP–. A Manual of botany : being an introduction to the study of the structure, physiology, and classification of plants . Botany. 152 MOVEMENTS IN CELLSâEOTATION. times the plant consists of a single central cell; at other times there are several smaller ones surrounding it, which must be removed in order that the movements which occur in the central cell may be seen. Many of the species are incrusted with calcareous matter, and thus become opaque, while others, as Ohara or Nitella flexilis, have no incrustation, and are transparent. Those plants with unincrusted tubular, cells best exhibit movem
RMME6JRA–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet . Fig. 126. Nitella flexilis Ag. A—D Entwickelung der Sporenknospe. & die Trägerzelle; ä die Hüllschlauchanlagen; s Scheitelzelle des Sprosses; Ä Krönchen; x die Wendungszellen. (Nach Sachs, 300/1.) Bei Eizelle wird; deren Protoplasma enthält zahlreiche Stärkekörner und Oltropfen, ist jedoch am Scheitel, dem Emplangnisfleck, von hyaliner BeschatTenheit. Die Hüllschläuche wachsen anfänglich in gerader Richtung über
RMRH39K0–. The British Charophyta. Characeae -- Great Britain. IV FIG. 18.—Development of antheridium of Nitella flexilis (after Sachs), i. Early stage showing young antheridium divided into eight equal parts by the growth of two vertical walls, at right angles to one another, and a horizontal wall. ii. Further stage showing each eighth part divided into an exterior and interior portion, iii. Later stage showing interior portion again divided, making three layers, the outermost expanding tangentially to form the plates or shields, the middle growing radially to form the rnanubria, and the inner- most f
RMME6JRM–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet . Fig. 124. Nitella flexilis Ag. Entwickelung der Antheridien. Bei B, G, D das Protoplasma durch Einwirkung von Glycerin contrahiert. (Nach Sachs.) Fig. 125. Nitella flexilis Ag. Weiter ent- wickeltes Antheridinm. (Nach Sachs, 500/1.) Hüllschläuchen eingeschlossen, die sehr große Scheitelzelle, welche nach Abtrennung 1 oder bei Nitella] mehrerer niedriger basaler Zellen, der sogen. Wendungszellen, zur
RMRG0FGY–. The Canadian field-naturalist. 712 The Canadian Field-Naturalist Vol. 112. Figure 2. Distribution of Horned Pondweed, Zannichellia palustris, in northwestern Canada (dots 1-3) and location site of the alga Nitella flexilis (solid triangle 4) in the Yukon Territory (see text for details). (Figure 2, #4). To the west in Alaska, Hulten (1968) plotted it from the Seward Peninsula and the vicinity of Norton Sound. The specimen upon which the Yukon record was based was originally preserved in the Canadian Wildlife Service Herbarium at Winnipeg. This herbarium was broken up at the time of a move an
RMRH2EYC–. The British Charophyta. Characeae -- Great Britain. 52 BRITISH CHAROPHYTA. ovoidal form. The lateral walls of the spiral cells subsequently break down, leaving the outer walls to form a single integument marked by spiral furrows along the lines of union. Incased and protected by the enveloping spiral cells the oosphere consists of a nucleated mass of protoplasm enclosed by a thin and extremely delicate. FIG. 22.—Development of oogonium of Nitella flexilis (after Sachs). a, oosphere; b, node-cell; c, enveloping cells; d, upper, and d1, lower cells of coronula ; e, turning cell. i. Early stage
RMRD7YMB–. The British Charophyta. Characeae. 52 BRITISH CHAEOPHYTA. ovoidal form. The lateral walls of the spiral cells subsequently break down, leaving the outer walls to form a single integument marked by spiral furrows along the lines of union. Incased and protected by the enveloping spiral cells the oosphere consists of a nucleated mass of protoplasm enclosed by a thin and extremely delicate. Pig. 22.—Development of oogonium of Nitella flexilis (after Sachs). o, oosphere; h, node-cell; c, enveloping cells; d, upper, and. d', lower cells of ooronula; e, turning cell. i. Early stages of the oogonium
RMREFPBF–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. 133 Fig. 37. o. 9 d Nitella flexilis. a fertiles Blatt, Vergr. 30; h Kern, Vergr. 45; c verschiedene fertile Blätter, Vergr. 9; d steriles Blatt, Vergr. 30; e Blattspitzen, Vergr. 45; f Krönchen, Vergr. 75; g f. subcapitata, natürl. Grösse.. 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 resembl
RMRH39NB–. The British Charophyta. Characeae -- Great Britain. lii.B. FIG. 16.—Position of reproductive organs in several genera. <J = antheridium, $ = oogonium in all figures, i. Nitella flexilis (after Sachs): pr, apex of primary ray; sr, bases of two secondary rays. ii. Tolypella glomerata (after Migula) : pr, primary ray; sr, secondary lateral rays; tr, terminal ray. iii. Lychnothamnus barbatus (after Braun) : A. Side view. B. Transverse section of branchlet-node (schematic)—n, central cell of node; be, bract-cells, iv. Lamprothamnium papulosum (after Braun): A. Vertical section of branchlet-nod
RMRH990D–. Botanische Zeitung. Plants; Plants. ?. Jahrgang. ptn 21. geptimbtt 1849. 38. Stück. Mflhitit» Origf.: Göppert u. Cohn üb. d. Rotation des Zellinhaltes in Kitella flexilis. — Sjätf«: Leichhardt Journ. of an overland expedition in Australia. — Otto u. Dietrich Allg. Gartenzeitunf; 1 — 29. — Buxton a bot. guide of the flow. pl. of Manchester. — Gel. Cres.: Bot. Ges. i. London. — K. flfot.! Bracteen h. Cheiranthus Cheiri. — Aka- demie d. "Wissensch. z. Wien. — 6S1 — 682 Ueber die Rotation des Zellinhaltes tri Nitella flexilis. Von Prof. Dr. H. R. Goeppert und Dr. Fer- dinand Cohn. (Fortsetz
RMRH98YH–. Botanische Zeitung. Plants; Plants. ?. Jahrgang. |>ot 28. %tyU0et 1849. 39. Stück. Inhalt. Orig. : Göppertu. Colin üb.Jd. Rotation des Zellinhaltes in Nitella jlexüis. — Iiit.: Flora N. 11 — 27. — Jahresbericht üb. d. Fürstl. Schwank Gymnasium z. Sondershausen. — Jahrbücher d. Vereins f. Naturk. im Herz. Nassau. 4. 5. Hft. — Flora d. Oberlausitz v. Fechner. — Gel. OeS.: Bot. Ges. z. Edinburg. — K. ü'ot.: Aufnahme d. Kalksalze v. d. Pflanze. — 697 — 698 — Ueber die Rotation des Zellinhaltes in Nitella flexilis. Von Prof. Dr. H. R. Goeppert und Dr. Fer- dinand Co hn. (Fo rtsetz ung.) Betrac
RMRD7YGY–. The British Charophyta. Characeae. PLATE VIII. St. Groves del. NITELLA FLEXILIS. 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.. Groves, James; Bullock-Webster, George Russell, 1858- joint author. London, The Ray society
RMRCJ97B–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet. Botany. Characeae. (Wille.) 71. Fig. 126. Nitella flexilis Ag. A—D Entwickelung der Sporenknospe. & die Trägerzelle; ä die Hüllschlauchanlagen; s Scheitelzelle des Sprosses; Ä Krönchen; x die Wendungszellen. (Nach Sachs, 300/1.) Bei Eizelle wird; deren Protoplasma enthält zahlreiche Stärkekörner und Oltropfen, ist jedoch am Scheitel, dem Emplangnisfleck, von hyaliner BeschatTenheit. Die Hüllschläuche wachsen anfä
RMRCJ97E–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet. Botany. Fig. 124. Nitella flexilis Ag. Entwickelung der Antheridien. Bei B, G, D das Protoplasma durch Einwirkung von Glycerin contrahiert. (Nach Sachs.) Fig. 125. Nitella flexilis Ag. Weiter ent- wickeltes Antheridinm. (Nach Sachs, 500/1.) Hüllschläuchen eingeschlossen, die sehr große Scheitelzelle, welche nach Abtrennung 1 oder bei Nitella] mehrerer niedriger basaler Zellen, der sogen. Wendungszellen, zur. Please n
RMRJCW9B–. The Characeae of America. are there called scuta. They separate when mature at the lines of union and have thus been called valves. When immature they are filled with green chlorophyll, but when approaching maturity they become as a rule brilliant red. (In Nitella megacarpa growing in deep water in Litchfield Lake, the Antheridia never become more colored than a pale gold.) The outermost layer, however, has no granules and forms a transparent zone about the sphere, see Fig. 39, "A" (N. flexilis). The sides of these scuta cells begin to exhibit folds very early; these folds look lik
RMREFREB–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. 35 Seite des Blattes, bei monöcischen Arten direct unter dem Sporen- knöspchen (Fig. 24 a). Fig. 24.. Fructificationsorgane von: a Chara hispida, b Nitella flexilis, c Tolypella glomerata, d Lychuotliamnus barbatus. Vergr. bei o u. c 50, bei b u. d -40. 3*. 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 p
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