RMRJ1HE1–. Our native ferns and their allies [microform] : with synoptical descriptions of the American pteridophyta north of Mexico. Ferns; Fougères. THE FERN ALLIES. 39 Louis Acad. Set., iv, 358-390 (1882). A valuable monograph of this most difficult genus of the fern allies. Underwood (L. M.). The distribution of Isoetes. In Botanical Gazette, Xlll, 89-94 (1888). See also notes in Botanical Gazette, vi, 228. E. THE WATER FERNS. 102. General Characters.—This group includes plants of very diverse characters. Some, like Marsilea, root in mud and produce quadrifoliate leaves. Others, like Pilularia, re-
RMRE3NAJ–. A handbook of cryptogamic botany. Cryptogams. RHIZOCARPEjE 37 joranges. Fertilisation takes place within the drop of mucilage, which len gradually disappears, and the impregnated megaspore lies on the amp ground, to which it becomes attached by the rhizoids put out om the prothallium until the first root of the embryo penetrates into le soil. In Marsilea the processes are somewhat similar. The exces- vely hard, almost stony, shell of le sporocarp gives way slightly at s ventral edge as it lies in water, id the water penetrates into the Lterior. This causes the suc- jlent parenchymatous tissu
RM2C1C043–Marsilea quadrifolia L Marsilea quadrifolia L.
RMRE1KMF–. A manual of botany. Botany. too MANUAL OF BOTANY Sometimes several carpels are fused together by their ed forming a chamber which may or may not be' septated by partitions. A chamber of somewhat similar appearance is found in certain Perns {Marsilea). In most cases above the Perns the sporophore forms a distinct branch system, easily distinguishable from the vegetative one. In consequence of its ultimate shoots taking the form of flowers, it is known as the inflorescence. It shows a very great variety of form, depending on the mode of branching and the relative Fig. 191.. Fig. 191. Flowering
RM2C1CGAT–Marsilea minuta L Marsilea minuta L.
RMRE3NB4–. A handbook of cryptogamic botany. Cryptogams. RmZOCARPE^E 33 ;se bodies are therefore developed entirely within the microspore, ile the microspores themselves are set free completely from the (range. As in the Salviniaceae, the whole of the contents of the ther-cell is not used up in the formation of the antherozoid ; a por- 1 remains behind in the form of a roundish turbid lump consisting of itoplasm and starch-grains, which gradually becomes clearer, and iches itself, in the form of a vesicle, to the antherozoid, which in alaria becomes soon detached, but in Marsilea remains attached to an
RMRDHCWE–. Botany for academies and colleges: consisting of plant development and structure from seaweed to clematis. Botany; 1889. the Arbor Vitce, Cedar, and Pine; they are therefore called Ground Pines. Their spores are of two kinds, like those of the Marsilea; they are con- tained in spore-cases wliich grow in the axils of leaves which form special cones. The pro- thallus here is a mere vegetative cell (Fig. 41, A); it is seen in the macrospore before germination (A, above the line d); in germi- nation the root-hairs spring from this prothal- lus; below the line d is the perisperm, fore- shadowing
RM2C1C073–Marsilea minuta L Marsilea minuta L.
RMRDYF78–. A textbook of botany for colleges and universities ... Botany. PTERIDOPHYTES 177 that is, by the fusion of lateral branches (p. 152). The sporocarp seems to be a modified leaf blade or blades enclosing a group of sori (fig. 408). In Marsilea the sporocarp is somewhat bean-shaped, each sorus being in a cavity that ex- tends from the ventral side towards the dorsal (fig. 409). Lining, each cavity is a delicate indusium com- pletely investing the sorus, which contains both micro- sporangia and megaspo- rangia (fig. 410). In the microsporangia all the mother cells function in producing microspor
RMRE1KYE–. A manual of botany. Botany. 146 MANUAL OP BOTANY contain both micro- and macrosporangia. In Marsilea there is in each a single row of the latter in the middle, and a double row of the former on each side of it. In Pilularia the arrange- ment is not so definite. The sporocarp is made to rupture by the mucilaginous character of the internal tissue, which absorbs water and causes the wall of the sporo- carp to split. In Pilularia the rupture begins at the apex, in Marsilea it takes place along the side. In the sporocarp of the latter is a band or ring of mu- FiG. 904. Fig. 905.. Fig. 904. Trans
RM2C1FTM9–Marsilea quadrifolia L Marsilea quadrifolia L.
RMRPXPN7–. Text-book of botany, morphological and physiological. Botany. 192 MORPHOLOGY OF MEMBERS. row. Nodal cells occupying clearly-defined positions produce the leaves in the order stated. This development furnishes no evidence that the leaves are formed in spiral succession; the bilateral structure of the stem shows rather that a spiral construction is in this case altogether inadmissible. The same may be shown to be the case in Marsilea, where the creeping stem bears on its upper side two rows of leaves, while the under side forms roots; the leaves borne on the upper side may in this case be unit
RM2C1C03K–Marsilea quadrifolia L Marsilea quadrifolia L.
RMREXDEX–. A handbook of cryptogamic botany. Cryptogams. 32 VASCULAR CRYPTOGAMS the lower and larger portion of the protoplasmic cell-contents contract- ing into an oosphere. If the archegone remains unfertilised the prothal- lium continues to grow into a comparatively large chlorophyllous structure with rhizoids. The male prothallium and antherids are reduced to a still more. Fig. 14.—Marsilea sahatrix L. Longi- tudinal section through megaspore, pro- thallium, and embryo. a;«, starch grains; r, inner ccat ; ex^ epispore; c, space heneath diaphragm ; pt.^ prothal- lium ; -wkj its rhizoids; a, archegon
RM2BX9KJP–Marsilea quadrifolia L Marsilea quadrifolia L.
RMRDHC1D–. Botany for academies and colleges: consisting of plant development and structure from seaweed to clematis. Botany; 1889. Fig. 131.—Dewberry (Bubiw and jointed alike to the common petiole, as in the White Clover (Fig. 132). 801. Palmate leaves are Trifoliolaie or Ternate; Dewberry, Clover; Quadrifolio- late, 4-leaved; Marsilea ; Quinate, 5-leaved ; Virginia Creeper, Chaste-tree (Fig". 126); Sepiinaie, 7-leaved ; Horse-Chestnut; Biter- nate, twice - ternate ; Columbine ; Triter- nate, thrice-ternate; Baneberry. 202. Leaj-Texiure. Leaves in texture are Coriaceous, leathery; Mistletoe; Fles
RM2C1C062–Marsilea quadrifolia L Marsilea quadrifolia L.
RMRDH7AP–. The power of movement in plants . Plants; Botany. 258 CIRCUMNUTATION OP CBYPTOGAMS. Chap. 17 Fig. 320. In the chapter on the Sleep of Plants the conspicuous oiroum- nutation of Marsilea quadrijoliata (Marsileacese, Fam. 4) will ba described. It has also been shown in Chap. I. that a very young SeZa- ginella (LycopodiacesB, Fam. 6), only '4 inch in height, plainly circumnutated; we may therefore conclude that older plantS; whilst growing, would do the same. (35.) Lunularia vulgaris (Hepaticje, Fam. 11, Muscales).— The earth in an old flower-pot was coated with this plant, bearing gemrasB. A h
RM2C1FTHB–Marsilea quadrifolia L Marsilea quadrifolia L.
RMRDGFC3–. A textbook of botany for colleges and universities ... Botany. REPRODUCTION AND DISPERSAL 815 (i.e. Marsilea, Salvinia, and Azolla) and in SelagineUa and Isoetes there are two kinds of spores, namely, small spores or microspores, and large spores or megaspores; such a condition is known as keierospory (fig. 303). Upon germination the microspores give rise to male plants and the 1129. ^(128 Figs. 1128, 1129. — Reproduction by asexual spores in a fern (Aspidium): 1128, a leaf segment (pinnule) with fruit dots (sori), each with a shield-shaped cover (indusium); 1129, a cross section through a s
RMRDM97T–. 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 102d meridian. Botany; Botany. 2. Marsilea vestita Hook. & Grev. Hairy Pepperwort. Fig. 86. M. vestita Hook. & Grev. Ic. Fil. pi. 159. 1831. Marsilea mucronata A. Br. Amer. Journ. Sci. (II.) 3: 55. 1847. Rootstocks slender, creeping. Petioles slen- der, 2'-s' high; leaflets similar to those of the preceding species, entire or toothed; sporo- carps 2"-4r" long, 2"-3&quo
RM2C1FTJY–Marsilea quadrifolia L Marsilea quadrifolia L.
RMRDYF74–. A textbook of botany for colleges and universities ... Botany. Fig. 411. — Marsilea: the swelling mucilaginous ring dragging out sori (indusia enveloping sporangia) from the sporocarp. 410 409 Figs. 408-410.—Marsilea: 40S, inside of one of the " valves " of the sporocarp, showing the system of veins, the short branches supplying the sori; 409, section through a sporocarp, showing the two rows of sori beginning to develop (terminal cell in each is a young megasporangium); 410, section through a young sorus, showing a developing megasporangium (cutting off tapetal cells) above, and a
RMRDK6TG–. The power of movement in plants. Plants; Botany. 258 CIECUMNUTATION OF CRYPTOGAMS. Chap. 17 Fig. 120. In the chapter on the Sleep of Plants the conspicuous circum- nutation of Marsilea quadrijoliata (Marsileacese, Fam. 4) will be described. It has also been shown in Chap. I. that a yery young Sela- ginella (Lycopodiaceae, Fam. 6), only '4 inch in height, plainly circnmnutated; we may therefoi-e conclude that older plants^ whilst growing, would do the same. (35.) Lunvlaria vulgaris (Hepaticse, Tarn. 11, Muscales).— The earth in an old flower-pot was coated with this plant, bearing gemmae. A h
RMRDM97C–. 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 102d meridian. Botany; Botany. 3S SALVINIACEAE. Vol. I.. i. Salvinia natans (L.) Hoffm. Salvinia. Floating Moss. Fig. 87. Marsilea natans L. Sp. PI. 1099. 17 S3- Salvinia natans Hoffm. Deutschl. Fl. 2: 1. 1795- Leaves oblong, rather thick, obtuse or emarginate at the apex, rounded or cordate at the base, entire., spreading, 6-12' long, pinnately veined, bright green and papillose above, the
RMRE3NAY–. A handbook of cryptogamic botany. Cryptogams. Fig. i6.âPilularia globulifera L. Longitudinal section of megaspore. a, coat of spore ; b, c, tf, the threelayers of the epispore. (After Luers- sen, magnified.). Fig. 17.âMarsilen. salvatrix. Micro- spore discharging antherozoids. ex^ exospore; dl, endospore ; zz, anthe- rozoids ;yy, their vesicles with starch* grains. (After Goebei, X350.) ch finally bursts to allow of the escape of the antherozoids with their icles. In Pilularia the antherozoid consists of only four or five coils â X a few vibratile cilia; in Marsilea it is of considerable len
RM2C1FTK4–Marsilea quadrifolia L Marsilea quadrifolia L.
RMRE1KR7–. A manual of botany. Botany. Fig. 159.. Fig. 153. A binate or bifoliate leaf. Fig. 154. Ternate or triloliate leaf. Fig. 155. Quadrifoliate leaf of Marsilea quadrifolia. Fig.5^. Quinate or quinquefoliate leaf. Fig. 157. Septenate leaf of the Horsechestnut {.^sculfs Hippocastanum). Fig. 158. Mnltifoliate leaf of a Lupin. Fig. 159. A biternate leaf. leaflets are less deeply divided, as in fig. 97. Il the division extends beyond this, the leaf is decompound {fig. 101), as in many Umbelliferous plants.. Please note that these images are extracted from scanned page images that may have been digit
RM2C1C03M–Marsilea gibba A Braun Marsilea gibba A Braun.
RMRE1KYM–. A manual of botany. Botany. Fig. 901. Plant of Marsilea. k. ELizome. &. Leaves. /. Sporocarps springing from the leaf stalks at a-. After Sacbs.âFig. 902. Stele of â Marsilea, showing gamostelic structm-o. a. Outer endodermis. &. Inner endodermis. c. Fused xylem bundles. (/. A point at which the fusion does not extend to the wood. e. Fundamental tissue isolated by the fusion of the steles. /. Cortes. curious globular or ovoid bodies, which occur in Salvinia and Azolla on the submerged leaves or lobes of leaves; in Marsilea. Please note that these images are extracted from scanned pag
RM2BXB853–Marsilea ancylopoda A Braun Marsilea ancylopoda A Braun.
RMRDM982–. 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 102d meridian. Botany; Botany. Genus i. MARSILEA FAMILY. 37 i. Marsilea quadrifdlia L European Marsilea or Pepperwort. Fig. 85. Marsilea quadrifolia L. Sp. PI. 1099. 1753. Rootstock slender, buried in the muddy bot- toms of shallow lakes or streams. Petioles usu- ally slender, 2'-$' high, or when submerged sometimes elongated to 1° or 2°. Leaflets mostly triangular-obovate, variable in outli
RM2C1FTHP–Marsilea gibba A Braun Marsilea gibba A Braun.
RMRDHCWM–. Botany for academies and colleges: consisting of plant development and structure from seaweed to clematis. Botany; 1889. 40 ACADEMIC BOTANY.. the Arbor Vitce, Cedar, and Pine; they are therefore called Ground Pines. Their spores are of two kinds, like those of the Marsilea; they are con- tained in spore-cases wliich grow in the axils of leaves which form special cones. The pro- thallus here is a mere vegetative cell (Fig. 41, A); it is seen in the macrospore before germination (A, above the line d); in germi- nation the root-hairs spring from this prothal- lus; below the line d is the perisp
RM2C1FTHE–Marsilea crenata C Presl Marsilea crenata C Presl.
RMRDM976–. 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 102d meridian. Botany; Botany. i. Salvinia natans (L.) Hoffm. Salvinia. Floating Moss. Fig. 87. Marsilea natans L. Sp. PI. 1099. 17 S3- Salvinia natans Hoffm. Deutschl. Fl. 2: 1. 1795- Leaves oblong, rather thick, obtuse or emarginate at the apex, rounded or cordate at the base, entire., spreading, 6-12' long, pinnately veined, bright green and papillose above, the lower surface densely matt
RM2C1FTHH–Marsilea crotophora DM Johnson Marsilea crotophora DM Johnson.
RMRE1J0C–. A manual of botany. Botany. 374 MANUAL OP BOTANY remain fused in front and behind them, giving the appearance of an internal and external shoath {fig. 151, b). In some cases the inner endodermis is almost or entirely indistinguishable, when the structure simulates a monostele. The separate bundles of the Equisetums are peculiar in having a large lacunar space Fie. 761.. Fig. 761. Gamoatelic stem of Marsilea. cp. Epiclerniis. co.la. Cortical laounie. scl. Solerenchyma in tlie cortex. e«,. Outer; en^. inner fused eudodermls of the steles. The steles are fused together laterally, forming a Tasc
RM2C1FTHG–Marsilea gibba A Braun Marsilea gibba A Braun.
RMRPXRA9–. Text-book of botany, morphological and physiological. Botany. FlG. 120.—Longitudinal section through the young primary root of the embryo of Marsilea salvatrix; zus the apical cell, -wh', ivh", •wh'" the still simple layers of the root-cap ; x, y the last segments of the substance of the root; i 4 intercellular s aces. FlG. i2i.—Longitudinal section through a somewhat older primary root of Marsilea salvatrix; ws the apical cell; whl •wh1 the first, wA3 + wM the second, iuh§ the third layer of the root-cap, each layer now consists of two divisions; xy the youngest segments of the s
RM2BXB82C–Marsilea deflexa A Braun Marsilea deflexa A Braun.
RMRDHC5B–. Botany for academies and colleges: consisting of plant development and structure from seaweed to clematis. Botany; 1889. ; Pines; Ascidiaie, pitcher-like, pouch-like; Nepenthes, Sar- r a c e n i a; Cuneate, wedge- shaped ; leaflets of Marsilea; Deltoid, like Greek letter A ; leaf of Poplar; Dolabriform, axe-shaped; Thujopsis ; El- liptical, like an ellipse; Ser- vice leaf and Ebony leaf; Ensiform, sword-like ; Iris ; Falcate, sickle-shaped; Spot- ted Euphorbia; Fistulose, cylindric, hollow, and closed at the end; Onion; Flabelli- form, fan - like; Palmetto; Lanceolate, lance - like ; Pa- paw
RM2C1FTKC–Marsilea ancylopoda A Braun Marsilea ancylopoda A Braun.
RMRMY8XW–. Annales des Sciences Naturelles Botaniques. TABLE DES PLANCHES. CONTENUES DANS CE VOLUME. PjLANCHES l , U» 3. lO, II , 12. Structure et circulation du Chara/ragilis. A. Zannichellia dentata Willd. B. Zannichelliapalustris WïWd. A. Zannichelliapalustris Wûld. B. Diplanthera Du Petit-Thouars. Targionia bifurca Mont.et Nées. Caulerpa TVebhiana. Rumex bucephalophorus -—Emex australis.'-'Or- chis lœla. (Détails anatomiques. Daucus gracilis. Genres d'Asclépiadées. Germination du Marsilea Fàbri. — du Tamus communis. FIN DU NEUVIÈME VOLUME.. Please note that these images are extracted from scanned p
RMRDHC5M–. Botany for academies and colleges: consisting of plant development and structure from seaweed to clematis. Botany; 1889. 90 ACADEMIC BOTANY. They are: Acerose, needle-. ; Pines; Ascidiaie, pitcher-like, pouch-like; Nepenthes, Sar- r a c e n i a; Cuneate, wedge- shaped ; leaflets of Marsilea; Deltoid, like Greek letter A ; leaf of Poplar; Dolabriform, axe-shaped; Thujopsis ; El- liptical, like an ellipse; Ser- vice leaf and Ebony leaf; Ensiform, sword-like ; Iris ; Falcate, sickle-shaped; Spot- ted Euphorbia; Fistulose, cylindric, hollow, and closed at the end; Onion; Flabelli- form, fan - li
RM2C1C077–Marsilea macrocarpa C Presl Marsilea macrocarpa C Presl.
RMRE1KYR–. A manual of botany. Botany. Fig. 900. Part of a plant of Salviuia. ?, Ploating leaves, w. Submerged leaves, s. Sori. k. Apex of stem. B. Longitudinal section tbroughthree sori of Salvinia. i, i. Two "with microsporangia. a. One with macro- sporangia. After Sachs. rhizome the leaves grow vertically upwards, being arranged alternately on the stem. In the former genus the leaf is un- branched and somewhat cylindrical; in the latter it is compound, bearing four leaflets at the end of a long petiole [figs. 901, 903). Both PUularia and Marsilea produce adventitious roots from the rhizome. In
RM2C1C03T–Marsilea macra A Braun Marsilea macra A Braun.
RMRJMF4D–. A Balaton tava?nak e?s partmelle?ke?nek no?ve?nyfo?ldrajza e?s ede?nyes no?ve?nyzete. Plants; Phytogeography. 108 Parti növény alakulása vízib?l biológiai alapon. subvillosa BoRB. ined.). teliát inkább a szárazföldi jellemet viseli. — Az ilyen alak 1880-ban Vészt?n az újon feltört mocsártalajon búza közt, a tarlóban és len közt is termett,^ 1—2 esztend? múlva elpusztult. A szárazi forma b?ven gyümölcsözött, a vízi ritkán. Ez is bizonyítja, hogy a leveg? inkább kényszeríti a füvet leváló ivadék (mag, spóra) létrehozatalára, a víz pedig inkább az ivartalan szaporodásnak kedvez. A Marsilea quad
RMRDK6N6–. The power of movement in plants. Plants; Botany. A. B. C. Marsilea quadrifoliala; A, leaf during the day, seen from rertically above B, leaf beginaiag to go to sleep, seen laterally; C, the same asleep. Figures reduced to one-half of natural scale. vertically dependent glass filament was now fixed to one of the terminal and inner leaflets; and part of the tracing in Fig. 167, after 6 p.m., shows that it continued to sink, making one zigzag, until 10.40 p.m. At 6.45 a.m. on the following morning, the leaf was awaking, and the filament pointed above the vertical glass. Fig. 167.. M'jlvxa. ilar
RMRDGBKG–. The power of movement in plants . Plants; Botany. CiulS Vll. SLEEP OF LEAVES. 393 diiriiig 24 h. (Fig. 167). The leaf fell from the early morning till 1.50 P.M., and then rose till 6 p.m., when it was asleep. A Fig. 166.. A. U. Marsilea quadrifolia/a: A, leaf during the day, seen from yertically above ; B, leaf beginning to go to sleep, seen laterally; C, the same asleep. Figures reduced to one-half of natural scale. vertically dependent glass filament was now fixed to one of the terminal and inner leaflets; and part of the tracing in Fig. 167, after 6 p.m., shows that it continued to sink,
RM2C1CG92–Marsilea deflexa A Braun Marsilea deflexa A Braun.
RMRDK6N9–. The power of movement in plants. Plants; Botany. Chap MI SLEEP OF LEAVES. 393 during 24 h. (Fig. 167). The leaf fell from the early morning till 1.50 P.M., and then rose till 6 p.m., when it was asleep. A Fig. 166.. A. B. C. Marsilea quadrifoliala; A, leaf during the day, seen from rertically above B, leaf beginaiag to go to sleep, seen laterally; C, the same asleep. Figures reduced to one-half of natural scale. vertically dependent glass filament was now fixed to one of the terminal and inner leaflets; and part of the tracing in Fig. 167, after 6 p.m., shows that it continued to sink, makin
RM2C1FTH3–Marsilea macra A Braun Marsilea macra A Braun.
RMRDGBKE–. The power of movement in plants . Plants; Botany. A. U. Marsilea quadrifolia/a: A, leaf during the day, seen from yertically above ; B, leaf beginning to go to sleep, seen laterally; C, the same asleep. Figures reduced to one-half of natural scale. vertically dependent glass filament was now fixed to one of the terminal and inner leaflets; and part of the tracing in Fig. 167, after 6 p.m., shows that it continued to sink, making one zigzag, until 10.40 P.M. At 6.45 a.m. on the following morning, the leaf was awaking, and the filament pointed above the vertical glass. 6°p.m.. J0'4i'aju. Marsi
RM2C1C067–Marsilea mexicana A Braun Marsilea mexicana A Braun.
RM2C1FTKW–Marsilea drummondii A Braun Marsilea drummondii A Braun.
RMRH4TB8–. Botánica descriptiva. Compendio de la flora española. Estudio de las plantas que viven espontáneamente en España y de las más frecuentemente cultivadas que tienen aplicaciones en medicina, agricultura, industria y horticultura. Plants. 556 EQÃISETINEAS GEN. MARSILEA L.âEsporocarpio con dos celdas, bivalvos y reunidos en número de 23, 2.874. M. quadrifoliata L. (Fig. 207.)â^I. Rizoma de i"'-2"' de diáme- tro; frondes con pecÃ-olo largo, de 7"-10", erguido, y limbo foliáceo compues- to de cuatro lóbulos trasovado-cuneiformes, anchos, de io"'-i5"' de longi
RM2C1FTJ8–Marsilea deflexa A Braun Marsilea deflexa A Braun.
RM2C1FTKG–Marsilea macropoda Engelm ex A Braun Marsilea macropoda Engelm ex A Braun.
RMRC8F8H–. Embryogenesis in plants. Embryology. Fig. 36. Embryogeny in heterosporous ferns A, PUulaiia globiilifera. Archegoniuni in longitudinal median section containing recently fertilised ovum; the archegoniuni (a) is shown in what is probably its natural orientation. B-D, Marsilea vestita. Stages in the development of the em- bryo, showing the differentiation of the shoot (,v), leaf (/), root (/•), and foot (/) regions; p, prothallus. E, Pilnlaria globiilifera. Fully developed embryo in l.s., still attached to the prothallus and megaspore {in), and enclosed in the calyptra {cal) vs, vascular stra
RM2C1CG75–Marsilea trichopoda Lepr ex A Braun Marsilea trichopoda Lepr ex A Braun.