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Isoetes lacustris Stock Photos and Images
RFM5PBFK–Vintage engraving of isoetes lacustris or lake quillwort, aquatic plant of ponds with short stem and long narrow leaves and roots growing together
RM2A2RRN4–Marsh quillwort, Isoetes lacustris L. - Marsh or sea bream herb Family: 9. Isoetaceae - herbaceous plants, pl. 20, after p. 52 (Bd. 1), 1886, Otto Wilhelm Thomé: Prof. Dr. Thomé's Flora von Deutschland, Österreich und der Schweiz in Wort und Bild. Gera-Untermhaus: Verlag von Fr. Eugen Köhler, [1886
RM2AWTEJW–Text-book of botany, morphological and physiological . Fig. 202.—Isoetes lacustris (after Hofmeister); A macrospore, two weeks after its escape from the sporangiuin, renderedtransparent by glycerine (X6o) ; R longitudinal section of the prothallium four weeks after the escape of the macrospore,a archegonium (X40). of Ferns. The essential difference between the results of the two observers con-sists in this:—that, according to Millardet, only two of the primordial cells producethe mother-cells of the antherozoids, which then, increasing in number, cause theabsorption of the rest of the primordi
RFH1NBA1–common horsetail, Equisetum arvense (right bottem), See-Brachsenkraut, Isoetes lacustris (left bottem), stag's-horn clubmosse, Lycopodium clavatum (left top), maidenhair spleenwort, Asplenium trichomanes L. (top center), wall-rue, Asplenium ruta-muraria (right top)
RMBNC5BC–Botanical print from Manual of Botany of the Northern United States, Plate XXI, Gen. of Lycopodiaceae, Equisetaceae, &c.
RMPG16FR–. Fossil plants : for students of botany and geology . Paleobotany. ,^^p?'^)-. FiQ. 133. Isoetes lacustris. A. Transverse section of stem: cr, cortex; x, i^ xylem; c, cambium; a, thin-walled tissue; It, leai-traces; 6, dead tissue. B, C, D. Portions of A enlarged. E. Longitudinal radial section of sporophyll-base: v, velum; I, ligule ; bb, vascular bundle; m, megaspores; t, sterile tissue. F. Longitudinal section through the base of a root. G. Transverse section of root. H. Transverse section of sporophyll, showing sporangium with trabeculae, t; leaf-trace, (iJ), and two groups of secretory c
RM2P60BHW–Qull-wort or Merlin grass (isoetes lacustris), William Catto (Aberdeen, Scotland, 1843 - 1927)
RM2AWTCNR–Text-book of botany, morphological and physiological . .vv/|y^i-. V- FIG. 305.—Longitudinal section of Isoetes lacustris at right angles to the fork of the stem ten months old (after Hofmeister)>5 stem, b.—*8 leaves, rl—rlO roots (X30); the ligula of the two developed leaves is shaded. The increase in thickness, the long continuance of which distinguishes the stem ofIsoetes from that of all other Cryptogams, is brought about by a layer of meristemlying inside, surrounding the central vascular body, and continually producing newlayers of parenchyma on the outside. This takes place especiall
RFH17MYF–Acker-Schachtelhalm auch Zinnkraut, Acker-Zinnkraut, Katzenwedel, Pferdeschwanz, Schaftheu, Pfannebutzer oder Scheuerkraut, Equisetum arvense (rechts unten), See-Brachsenkraut, Isoetes lacustris (links unten), Keulen-Baerlapp auch Wolfsklaue, Lycopodium clavatum (links oben), Braunstieliger Streifenfarn, Asplenium trichomanes L. (oben mitte), Mauerraute oder Mauer-Streifenfarn, Asplenium ruta-muraria (rechts oben)
RMPFNXH6–. De flora van Nederland. Plants. Isoetes lacustris Fig. 117. I. echinóspora') Durieu. Stekelspoor-biesvaren (fig. 118). Bij deze ondergedoken waterplant is de stengel tot 12,5 mM dik en 2-lobbig. De bladen zijn 5-12 cM lang, geleidelijk in een fijne spits versmald, slap (bij het uittrekken uit het water in bundels aan elkaar klevend), lichtgroen. Het dekvliesje is onvolledig. De macrosporen (fig. 118) zijn bolrond, kleiner dan bij de vorige, dicht met kegelvormige, vaak iets samengedrukte, spitse of afgeknotte, zeer brosse stekels bezet. De microsporen (fig. 118) hebben uitstekende kammen me
![. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Isoetes lacustris L. — A Pflanze in natürlicher Grösse. — B Basis eines fruchtbaren Blattes mit Ligola (1) und Sporangium (sp) von oben gesehen. — C Längsschnitt mi"D Querschnitt der Blattbasis (sp Sporangium, 1 Ligula). Stock Photo](https://c8.alamy.com/comp/MAAHMC/dr-l-rabenhorsts-kryptogamen-flora-von-deutschland-oesterreich-und-der-schweiz-isoetes-lacustris-l-a-pflanze-in-natrlicher-grsse-b-basis-eines-fruchtbaren-blattes-mit-ligola-1-und-sporangium-sp-von-oben-gesehen-c-lngsschnitt-miquotd-querschnitt-der-blattbasis-sp-sporangium-1-ligula-MAAHMC.jpg ". Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Isoetes lacustris L. — A Pflanze in natürlicher Grösse. — B Basis eines fruchtbaren Blattes mit Ligola (1) und Sporangium (sp) von oben gesehen. — C Längsschnitt mi"D Querschnitt der Blattbasis (sp Sporangium, 1 Ligula). Stock Photo")
RMMAAHMC–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Isoetes lacustris L. — A Pflanze in natürlicher Grösse. — B Basis eines fruchtbaren Blattes mit Ligola (1) und Sporangium (sp) von oben gesehen. — C Längsschnitt mi"D Querschnitt der Blattbasis (sp Sporangium, 1 Ligula).
RM2CEKH83–. Memoirs and proceedings of the Manchester Literary & Philosophical Society. 44 LANG, Stele of the Shoot of Isoetes lacustris..
![. Fossil plants : for students of botany and geology . Paleobotany. xiv] ISOETES 59 There is as a rule little or no difference between the foliage leaves and sporophylls; in /, lacustris the latter are rather. Fig. 132. Isoetes echinospora (After Motelay and Vendry^s). A. Stem of I. lacustris. B. Base of sporophyll: I, ligule; spy, sporangium partially covered by velum.. 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.. Sewar Stock Photo](https://c8.alamy.com/comp/PG16G1/fossil-plants-for-students-of-botany-and-geology-paleobotany-xiv-isoetes-59-there-is-as-a-rule-little-or-no-difference-between-the-foliage-leaves-and-sporophylls-in-lacustris-the-latter-are-rather-fig-132-isoetes-echinospora-after-motelay-and-vendrys-a-stem-of-i-lacustris-b-base-of-sporophyll-i-ligule-spy-sporangium-partially-covered-by-velum-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-sewar-PG16G1.jpg ". Fossil plants : for students of botany and geology . Paleobotany. xiv] ISOETES 59 There is as a rule little or no difference between the foliage leaves and sporophylls; in /, lacustris the latter are rather. Fig. 132. Isoetes echinospora (After Motelay and Vendry^s). A. Stem of I. lacustris. B. Base of sporophyll: I, ligule; spy, sporangium partially covered by velum.. 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.. Sewar Stock Photo")
RMPG16G1–. Fossil plants : for students of botany and geology . Paleobotany. xiv] ISOETES 59 There is as a rule little or no difference between the foliage leaves and sporophylls; in /, lacustris the latter are rather. Fig. 132. Isoetes echinospora (After Motelay and Vendry^s). A. Stem of I. lacustris. B. Base of sporophyll: I, ligule; spy, sporangium partially covered by velum.. 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.. Sewar
RM2H5CWCY–western quillwort (Isoetes lacustris), in a glass in the hands of a gardener in the botanical garden, Germany, Hamburg, Flottbek
RMT0WM99–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr03rabe Year: 1889 84- Ficr. 224. Isoetes lacustris L. — A Pflanze in natürlicher Grösse. — B Basis eines fruchtbaren Blattes mit Ligola (1) und Sporangium (sp) von oben gesehen. — C Längsschnitt mi'D Querschnitt der Blattbasis (sp Sporangium, 1 Ligula).
RMMEJY16–. Die Algen, Moose und Farnpflanzen. . £af. XXXV. l. Isoetes lacustris, gcmäe ^flan^e. 2. j8tattläng3fd)mtt mit ©porangium,, i ^ynbuHum, Sigula, toTrabeculä. 3.9ftafrofpore. 4. 2Betblid)e3 Sßrotfjaltium mit 2taf)e0onium. 5—7. I. setacea: 9}Jif'rofporen unb beren Keimung, p ^rot^alliumäeile, s jpermatooiene gelten, sm (Spermatoäoib* mutteräelkn. 8. I. Malinverniana, ©permatogoib. innen gelegene fpermatogene Seilen gerfällt. 3ln§ bcn letzteren gefjen m'er (Spermatogoiben rjerbor, bie am boiberen (Snbe §o$reidje ©eißeln l)aben (£af. XXXV: 5—8). gn ber ÜDtofrofpore cntftetjen Jute bei Selaginella
RM2CEKJ9C–. Memoirs and proceedings of the Manchester Literary & Philosophical Society. J^. Fig. 4.—Outlines of median longitudinal sections in the plane ofthe groove through two stocks of Isoetes lacustris.Description in the Text. Longitudinal sections in the plane of the groovefollow the extension of the rhizophoric stele. Just out-side the convex edge of this lies the meristem, whichdetermines on the one side the increase of the vasculartissue and on the other the, production of new roots andthe growth of the cortex of the rhizophoric region. Out-lines of longitudinal sections of two stocks in this p
RMMCRD7X–. Abb. G9. Die beiden Isoetesarten der Böhmerwaldseen. a Isoetes echinospora. b I. lacustris. {'!, n. Gr.)
RM2CEKJP7–. Memoirs and proceedings of the Manchester Literary & Philosophical Society. /4-. 2.—Outlines of selected sections of a transverse seriesthrough a stock of Isoetes lacustris. In this and the three followingfigures the primary stele of the stem and rhizophore is black. Theline outside this marks the position of the secondary meristem, theprismatic tissue occupying the position of the space between this andthe primary stele. The leaf-traces and root-traces are shown in thecortex. Further description in the Text. (The outlines in this figure and in Figs. 3, 4, 5, were obtainedby drawing over pho
RM2CEKJAW–. Memoirs and proceedings of the Manchester Literary & Philosophical Society. the rhizophoric region to be merely a peculiar secondarygrowth, indicates the close relation between the deep-seated growing line of the rhizophoric region and thesecondary meristem. All the plants hitherto considered are of the usualtype found in full grown plants in having a secondaryzone of prismatic tissue, developed within a cambium,around the older portions of both stem stele and rhizo- 18 LANG, Morphology of the Stock of Isoetes lacustris. phoric stele. Occasionally, however, equally large plantsare met with i
RM2CEKGGT–. Memoirs and proceedings of the Manchester Literary & Philosophical Society. ». //. L. Photo. 54 Lang, Stele of the Shoot of Isoetes lacustris PLATE III. Photo g. Transverse section just below the apex of anotherplant, showing the central and outer regions of themenstematic tissue. ( x 130.) Photo to. Somewhat lower section of the same plant. Thestele is delimited by the differentiation of the phloem onthe left-hand side. The xylem is still unlignified butthe outer and inner procambial regions are distinguish-able. ( x 130.) Photo 11. Slightly lower section of the same plant, showingthat the
RM2CEKGGY–. Memoirs and proceedings of the Manchester Literary & Philosophical Society. ». //. L. Photo. 54 Lang, Stele of the Shoot of Isoetes lacustris PLATE III. Photo g. Transverse section just below the apex of anotherplant, showing the central and outer regions of themenstematic tissue. ( x 130.) Photo to. Somewhat lower section of the same plant. Thestele is delimited by the differentiation of the phloem onthe left-hand side. The xylem is still unlignified butthe outer and inner procambial regions are distinguish-able. ( x 130.) Photo 11. Slightly lower section of the same plant, showingthat the
RM2CEKK5B–. Memoirs and proceedings of the Manchester Literary & Philosophical Society. Manchester Memoirs, Vol. lix. (1915), No. 3. III. Studies in the Morphology of Isoetes. I. TheGeneral Morphology of the Stock of Isoetes lacustris. By William H. Lang, M.B., D.Sc, F.R.S., Barker Professor of Cryptogamic Botany in the University of Manchester.{Read December 1 st, 1Q14. Received for publication Dece7)iber yth, 19/4.) Introduction. Isoetes has been studied by many investigators and itmight be assumed that its morphology was so well knownas to render further description needless. While this istrue of man
RM2CEKJHK–. Memoirs and proceedings of the Manchester Literary & Philosophical Society. es thus exhibits astriking correspondence with the relations of the youngleaves and their leaf-traces to the depressed growing pointof the shoot. These points are further illustrated in Fig. 5which represents a median longitudinal section in theplane of the lobes through a smaller but complete plant.The other two sections in Fig. 3 are sufficiently far 16 LANG, Morphology of tJie Stock of Isoetes lacustris. removed from the median plane to miss the primary steleof the stem. The section in Fig. 3 C cuts across theexte
RM2CEKK1J–. Memoirs and proceedings of the Manchester Literary & Philosophical Society. in two-lobed plants of I. lacustrismay be re-examined, although the result of this is on thewhole simply to confirm Von Mohls description. There-description will, however, bring some additional featuresinto prominence and group the facts for convenient con-sideration. The external form of the two-lobed stock of /. lacustris Annals of Botany XIV., 1900, p. 413. cf. especially pp. 430, 431. 8 Lang, Morphology of the Stock of Isoetes lacustris. is well known, though many of the published figures arenot accurate in deta
RMRHRCAY–. Billeder af nordens flora. Plants; Plants; Plants. 519. BRASENFØDE. isoétes lacustris.. 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.. Mentz, August, 1867-1944; Ostenfeld, C. H. (Carl Hansen), 1873-1931. København, G. E. C. Gad's forlag
RMRDTP2P–. The fern allies of North America north of Mexico. Pteridophyta; Botany. THE AQUATIC QUILLWORTS. 225 times to root them up. The fleshy corms or rootstocks have occasionally been eaten in Europe, but are said to have an earthy taste that is scarcely palatable. The American range of this species is given as from New Jersey, Lake Superior, Colorado, and California north- ward. The plant originally described by Engelmann as Isoetes lacustris, vz.n&ty paiipercula, is considered by Mr. Eaton as entitled to specific rank. It has fewer, thinner, and shorter leaves and smaller spores. It is found
![. Botany for high schools and colleges. Botany. 388 BOTANY. spores, while the iuterior ones contain microspores. Both macrospcres and microspores are produced in irreat numbers in the sporangia. The Quillworts are for tlie most part a(]uatic plants ; they are found chiefly in the nonh temperate and warm regions. The species, of. Fig. 280.—Germination of the microspores of Isoetes lacustris. ji, a microspore, side view. B, the same, ventral view ; the spore contents have divided into a few cells, of which v in each figure represents the rudimentary prothallium ; j3^ ^ are the ventral, aud J (J Stock Photo](https://c8.alamy.com/comp/RH92RM/botany-for-high-schools-and-colleges-botany-388-botany-spores-while-the-iuterior-ones-contain-microspores-both-macrospcres-and-microspores-are-produced-in-irreat-numbers-in-the-sporangia-the-quillworts-are-for-tlie-most-part-a-uatic-plants-they-are-found-chiefly-in-the-nonh-temperate-and-warm-regions-the-species-of-fig-280germination-of-the-microspores-of-isoetes-lacustris-ji-a-microspore-side-view-b-the-same-ventral-view-the-spore-contents-have-divided-into-a-few-cells-of-which-v-in-each-figure-represents-the-rudimentary-prothallium-j3-are-the-ventral-aud-j-j-RH92RM.jpg ". Botany for high schools and colleges. Botany. 388 BOTANY. spores, while the iuterior ones contain microspores. Both macrospcres and microspores are produced in irreat numbers in the sporangia. The Quillworts are for tlie most part a(]uatic plants ; they are found chiefly in the nonh temperate and warm regions. The species, of. Fig. 280.—Germination of the microspores of Isoetes lacustris. ji, a microspore, side view. B, the same, ventral view ; the spore contents have divided into a few cells, of which v in each figure represents the rudimentary prothallium ; j3^ ^ are the ventral, aud J (J Stock Photo")
RMRH92RM–. Botany for high schools and colleges. Botany. 388 BOTANY. spores, while the iuterior ones contain microspores. Both macrospcres and microspores are produced in irreat numbers in the sporangia. The Quillworts are for tlie most part a(]uatic plants ; they are found chiefly in the nonh temperate and warm regions. The species, of. Fig. 280.—Germination of the microspores of Isoetes lacustris. ji, a microspore, side view. B, the same, ventral view ; the spore contents have divided into a few cells, of which v in each figure represents the rudimentary prothallium ; j3^ ^ are the ventral, aud J (J
![. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. 84- Ficr. 224.. Isoetes lacustris L. — A Pflanze in natürlicher Grösse. — B Basis eines fruchtbaren Blattes mit Ligola (1) und Sporangium (sp) von oben gesehen. — C Längsschnitt mi"D Querschnitt der Blattbasis (sp Sporangium, 1 Ligula).. 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 resem Stock Photo](https://c8.alamy.com/comp/REFRFD/dr-l-rabenhorsts-kryptogamen-flora-von-deutschland-oesterreich-und-der-schweiz-cryptogams-germany-cryptogams-austria-cryptogams-switzerland-84-ficr-224-isoetes-lacustris-l-a-pflanze-in-natrlicher-grsse-b-basis-eines-fruchtbaren-blattes-mit-ligola-1-und-sporangium-sp-von-oben-gesehen-c-lngsschnitt-miquotd-querschnitt-der-blattbasis-sp-sporangium-1-ligula-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-resem-REFRFD.jpg ". Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. 84- Ficr. 224.. Isoetes lacustris L. — A Pflanze in natürlicher Grösse. — B Basis eines fruchtbaren Blattes mit Ligola (1) und Sporangium (sp) von oben gesehen. — C Längsschnitt mi"D Querschnitt der Blattbasis (sp Sporangium, 1 Ligula).. 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 resem Stock Photo")
RMREFRFD–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. 84- Ficr. 224.. Isoetes lacustris L. — A Pflanze in natürlicher Grösse. — B Basis eines fruchtbaren Blattes mit Ligola (1) und Sporangium (sp) von oben gesehen. — C Längsschnitt mi"D Querschnitt der Blattbasis (sp Sporangium, 1 Ligula).. 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 resem
RMRDBCD2–. Fossil plants : for students of botany and geology . Paleobotany. ,^^p?'^)-. FiQ. 133. Isoetes lacustris. A. Transverse section of stem: cr, cortex; x, i^ xylem; c, cambium; a, thin-walled tissue; It, leai-traces; 6, dead tissue. B, C, D. Portions of A enlarged. E. Longitudinal radial section of sporophyll-base: v, velum; I, ligule ; bb, vascular bundle; m, megaspores; t, sterile tissue. F. Longitudinal section through the base of a root. G. Transverse section of root. H. Transverse section of sporophyll, showing sporangium with trabeculae, t; leaf-trace, (iJ), and two groups of secretory c
![. Botanische Zeitung. Plants; Plants. 6. Jalirrae^. cn 14. ^ptil 1848. 15. ^tlleli. inJiattt Ol*lg.: K. MüllerGesch. d. Keimung v. Isoetes lacustris. — Kunze In filices Javae Zollingerianas observat.— IJit*: Unp,er Chloris protogaea. — Annal. d. scienc. natur. VII. — SsMUIlll,: 11g n er Schlesiens LauT)- und Leber- moose. — K« ]5fot.! Pogosfemon Patchouhj. — Opiz Pflanzentaiisch-Unternehmen. — 297 — 298 Geschichte der Keimung von Isoeies lacustris. Von Karl Müller. Hierzu Tafel IL 'S- !• Einleitendes. Ueber diesen Gegenstand hat bereits Herr A. Raffen au Delile einen Beitrag geliefert. Der- se Stock Photo](https://c8.alamy.com/comp/RH98XC/botanische-zeitung-plants-plants-6-jalirrae-cn-14-ptil-1848-15-tlleli-injiattt-ollg-k-mllergesch-d-keimung-v-isoetes-lacustris-kunze-in-filices-javae-zollingerianas-observat-ijit-unper-chloris-protogaea-annal-d-scienc-natur-vii-ssmuilll-11g-n-er-schlesiens-laut-und-leber-moose-k-5fot!-pogosfemon-patchouhj-opiz-pflanzentaiisch-unternehmen-297-298-geschichte-der-keimung-von-isoeies-lacustris-von-karl-mller-hierzu-tafel-il-s-!-einleitendes-ueber-diesen-gegenstand-hat-bereits-herr-a-raffen-au-delile-einen-beitrag-geliefert-der-se-RH98XC.jpg ". Botanische Zeitung. Plants; Plants. 6. Jalirrae^. cn 14. ^ptil 1848. 15. ^tlleli. inJiattt Ol*lg.: K. MüllerGesch. d. Keimung v. Isoetes lacustris. — Kunze In filices Javae Zollingerianas observat.— IJit*: Unp,er Chloris protogaea. — Annal. d. scienc. natur. VII. — SsMUIlll,: 11g n er Schlesiens LauT)- und Leber- moose. — K« ]5fot.! Pogosfemon Patchouhj. — Opiz Pflanzentaiisch-Unternehmen. — 297 — 298 Geschichte der Keimung von Isoeies lacustris. Von Karl Müller. Hierzu Tafel IL 'S- !• Einleitendes. Ueber diesen Gegenstand hat bereits Herr A. Raffen au Delile einen Beitrag geliefert. Der- se Stock Photo")
RMRH98XC–. Botanische Zeitung. Plants; Plants. 6. Jalirrae^. cn 14. ^ptil 1848. 15. ^tlleli. inJiattt Ol*lg.: K. MüllerGesch. d. Keimung v. Isoetes lacustris. — Kunze In filices Javae Zollingerianas observat.— IJit*: Unp,er Chloris protogaea. — Annal. d. scienc. natur. VII. — SsMUIlll,: 11g n er Schlesiens LauT)- und Leber- moose. — K« ]5fot.! Pogosfemon Patchouhj. — Opiz Pflanzentaiisch-Unternehmen. — 297 — 298 Geschichte der Keimung von Isoeies lacustris. Von Karl Müller. Hierzu Tafel IL 'S- !• Einleitendes. Ueber diesen Gegenstand hat bereits Herr A. Raffen au Delile einen Beitrag geliefert. Der- se
RMRH98PA–. Botanische Zeitung. Plants; Plants. 6. Jahrg'ang*. Pen 5. Jlai 1848. 18. Stück, Knhalt» Orig«: K. Müller Gesch. d. Keimung v. Isoetes laciistris. — üit.: Bull. d.i. Soc. imp. d. Naturalistes d. Mos- cou 1846. IV. — Prospetto d. Fl. Veneta publ. delDr. Zanardini. — Pariatore Flora Italiana. — IP. iWot.: Curt. Sprengel. — H.» Bfot.: Archangelica sativa u. officinalis. — Aconitum Stoerheanum. — Cannahis indica. — 343 346 Geschichte der Keimung von Isoetes lacustris. Von Karl Müller, ( B e schl u s s.) t §. 6. Bildung des dritten Blättchens. Ich habe, um die Erscheinung des dritten Blätt- chens
RMRD2R32–. De flora van Nederland. Plants. Isoetes lacustris Fig. 117. I. echinóspora') Durieu. Stekelspoor-biesvaren (fig. 118). Bij deze ondergedoken waterplant is de stengel tot 12,5 mM dik en 2-lobbig. De bladen zijn 5-12 cM lang, geleidelijk in een fijne spits versmald, slap (bij het uittrekken uit het water in bundels aan elkaar klevend), lichtgroen. Het dekvliesje is onvolledig. De macrosporen (fig. 118) zijn bolrond, kleiner dan bij de vorige, dicht met kegelvormige, vaak iets samengedrukte, spitse of afgeknotte, zeer brosse stekels bezet. De microsporen (fig. 118) hebben uitstekende kammen me
RMRPT6P9–. Allgemeine Fischerei-Zeitung. 26 3tt crfter ßinte fönncn noc^fte^enbc SPftonjen jut 5lultur cmpfol^Icn roerben: 1. 2){c Sald^fräutcr (5ßotQmogetonen), oon bencn wir eine ©pejieS in SiQui^ 1 obbilbcn. 2. SoS 2:oufenbbIott (Myriophyllum spicatum, M. verticillatum u. a.), oergl. iJtg. 2. 3. Sie Hreffenorten (Nasturtium), oergl. gig. 3. 4. 2)o§ S3rad§fenfcout (Isoetes lacustris), oergl. gig. 4. 5.*2)er Söaffer^al^ncnfu^ (Rammculus aquatilis), oergl. fjig. 5.. gig. 1. ßoid^frout (Potamogetou crispus).. Please note that these images are extracted from scanned page images that may have been digital
RMRH98R5–. Botanische Zeitung. Plants; Plants. O. Jalir^aii^. kn 28. ^pril 1848. 17, l§tlieli. Mnlinttt Orig.: K. Müller Gesch. d. Keimung v. Isoetes lacustris. â lilt.: Hornschuch Archiv scand. Beitr. zur Naturgesch. II. 1. â A. D e Can dolle dixieme notice s. I. pl. rar. d. jard. d. Geneve. â K* STot.: Chironiaemargina- ta Jarosz.;â Gummi Gutti-Bäume. â 329 â 330 Geschichte der Keimung von Isoetes lacustris. Von Karl Müller. (Fo rt Setzung'.) §. 5. Vo7n Durchbruche der Keimpflanze bis zur Bildung des zweiten Blättchens. An dem Keimkörper selbst befindet sich 1. das schon im vorigen Paragraphen
RM2AWTBA1–Text-book of botany, morphological and physiological . seen onold shoots of -S*. Kraussiana. The Apical Growth of the stem takes place, in Isoetes, Selaginella, and Psilotum,by means of an apical cell. That of hoetcs lacustris is, according to Hofmeister,two-edged when the stem has two furrows; in the species with three furrows itis a three-sided pyramid. In young plants the leaves stand accordingly in the firstcase in two, in the second case in three rows; but later the phyllotaxis becomesmore complicated and spiral, indicating perhaps that in the older stem the primarywalls of the segments a
RM2ANH12P–Arkiv för botanik . i Agrostis stolonifera X Batrachium pelt. * suecicum. s Eleocharis acicularis f. submersa. • Equiselum fluviatlle och ß limosum A Isoétes echinospora. - Litorella lacustns. o Lobelia dortmanna. -o Nuphar luteum. ^ N. pumilum. ® N. luteum X pumilum. A Potamogelon natans. < Ranunculus ß reptans. + Sagittaria natans. 5 Scirpus lacustris.Sparganium sp. 6 Subularia aquatica. Fig. 23—24. Karta öfvcr vattenväxtfloran vid sjön Håns utlopp år 1905. F;fig. däremot långstamsväxterna. Siffrorna angifva vattendjupen, pilarna strön nord I Tafl. 11.. 6 Batrachium paucist. S eradicatumA
RMRCPRWT–. Die Algen, Moose und Farnpflanzen.. Isoetales. 133 fiefelte Membranen; [ie roerben erft bnrd) ^ertoefnng ber ©porangien frei. 9lud) bie SO^alrof^orert entfiedert in größerer garjl im (Styoranginm. 3)ie ©ntroidlnng ber gefd)led)tlid)en (Generation finbet äljnlid) roie bei Selaginella ftatt, mir in nocl) etroaS mer)r rebugterter gorm. 3n öer SOltfrofJpore roirb gu* nädjft eine Heine linfenförmige .Belle abgegliebert, bie ein rnbimentäre3 $rotl)aflinm barftellt. S)er fReft tnirb §um Slntrjeribinm, inbem er in t>ier fterile SBcmbgeflen nnb groei. £af. XXXV. l. Isoetes lacustris, gcmäe ^flan^e
![. Fossil plants : for students of botany and geology . Paleobotany. xiv] ISOETES 59 There is as a rule little or no difference between the foliage leaves and sporophylls; in /, lacustris the latter are rather. Fig. 132. Isoetes echinospora (After Motelay and Vendry^s). A. Stem of I. lacustris. B. Base of sporophyll: I, ligule; spy, sporangium partially covered by velum.. 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.. Sewar Stock Photo](https://c8.alamy.com/comp/RDBCDA/fossil-plants-for-students-of-botany-and-geology-paleobotany-xiv-isoetes-59-there-is-as-a-rule-little-or-no-difference-between-the-foliage-leaves-and-sporophylls-in-lacustris-the-latter-are-rather-fig-132-isoetes-echinospora-after-motelay-and-vendrys-a-stem-of-i-lacustris-b-base-of-sporophyll-i-ligule-spy-sporangium-partially-covered-by-velum-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-sewar-RDBCDA.jpg ". Fossil plants : for students of botany and geology . Paleobotany. xiv] ISOETES 59 There is as a rule little or no difference between the foliage leaves and sporophylls; in /, lacustris the latter are rather. Fig. 132. Isoetes echinospora (After Motelay and Vendry^s). A. Stem of I. lacustris. B. Base of sporophyll: I, ligule; spy, sporangium partially covered by velum.. 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.. Sewar Stock Photo")
RMRDBCDA–. Fossil plants : for students of botany and geology . Paleobotany. xiv] ISOETES 59 There is as a rule little or no difference between the foliage leaves and sporophylls; in /, lacustris the latter are rather. Fig. 132. Isoetes echinospora (After Motelay and Vendry^s). A. Stem of I. lacustris. B. Base of sporophyll: I, ligule; spy, sporangium partially covered by velum.. 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.. Sewar
RMRDWJG1–. Illustrations of the British flora: a series of wood engravings, with dissections, of British plants. Botany; Botany. 1265. Isoetes lacustris, L. SQuillivoit. l^ XCII. MARSILEACE.«.. 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.. Fitch, W. H. (Walter Hood), 1817-1892; Smith, George Worthington, 1835-1917; Bentham, George, 1800-1884. Handbook of the British flora. London, L. Reeve
RMRDWJFT–. Illustrations of the British flora: a series of wood engravings, with dissections, of British plants. Botany; Botany. 1265. Isoetes lacustris, L. SQuillivoit. l^ XCII. MARSILEACE.«.. 1266. Isoetes Hystrix, Dnr. Qidtlwort. 1267. Pilularia globulifera, L. Fillwor t.. 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.. Fitch, W. H. (Walter Hood), 1817-1892; Smith, George Worthington, 1835-1917; Bentham, George, 1800-1884. Handbo
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