Cover of: On the development of the leaf and sporocarp in Marsilia quadrifolia, L. ... | Duncan Starr Johnson

On the development of the leaf and sporocarp in Marsilia quadrifolia, L. ...

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Marsilia quadrifolia., Plant morph
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LC ClassificationsQK521 .J6
The Physical Object
Pagination1 p.l., [119]-145 p.,
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Open LibraryOL23366463M
LC Control Number05029430

On the development of the leaf and sporocarp in Marsilia quadrifolia [Duncan Starr Johnson] on *FREE* shipping on qualifying offers. On the development of the leaf On the development of the leaf and sporocarp in Marsilia quadrifolia sporocarp in Marsilia quadrifolia, L.

On the development of the leaf and sporocarp in Marsilia quadrifolia book, On the development of the leaf and sporocarp in Marsilia quadrifolia.

Title. On the development of the leaf and sporocarp in Marsilia quadrifolia, L. Johnson, Duncan Starr, Type. Book Material. An illustration of an open book. Books. An illustration of two cells of a film strip. Video An illustration of an audio speaker.

On the development of the leaf and sporocarp in Marsilia quadrifolia, L Item Preview remove-circle On the development of the leaf and sporocarp in Marsilia quadrifolia, L by Johnson, Duncan Starr, Pages: According to this hypothesis, the sporocarp is the modification of the whole leaf (lamina and petiole) where the marginal cells of the leaf develop into sporangia instead of leaflets.

Evidence in support of this hypothesis is derived from the development of secondary and even ter­tiary sporocarps on peduncle of primary sporo­carp. On the development of the leaf and sporocarp in Marsilia quadrifolia, L. By Duncan Starr Johnson Topics: Marsilia quadrifolia, Plant morphologyAuthor: Duncan Starr Johnson.

Marsilea quadrifolia is a herbaceous plant found naturally in central and southern Europe, Caucasia, western Siberia, Afghanistan, south-west India, China, Japan, and Vietnam, though it is considered a weed in some parts of the United States, where it has been well established in the northeast for over years.

Its common names include four leaf clover; European waterclover (USA); sushni. Marsilea is a genus of approximately 65 species of aquatic ferns of the family name honours Italian naturalist Luigi Ferdinando Marsili (–). These small plants are of unusual appearance and do not resemble common ferns.

Common names include water clover and four-leaf clover because of the long-stalked leaves have four clover-like lobes and are either present above. Abstract.

Thesis (PH.D.)--Johns Hopkins ted from Annals of Botany, vol. 12, no. 46, Junep. []es bibliographical references.

Development of Sporocarp: The development of sporocarp is described by Johnson () in M. quadrifolia. According to him the leaf arises from a bifacial apical leaf cell. It cuts off a pair of segments. When the leaf primordium is cells high, the sporocarp initial develops at its base (Fig.

13 A, B). Beiträge zur Entwicklungsgeschichte der Marsiliaceen Fritz Schneider, (Mit 18 Abbildungen im Text.) Literatur Andrews, M.W. Apical growth in roots of Marsilia quadrifolia and Equisetum arvense Bot. Gaz XV: () Bower, F.O. Comparative morphology of the leaf of the vascular Cryptogams and Gymnosperms () Philosophical Transactions Braun, A.

Ãœber Marsilia und.

Description On the development of the leaf and sporocarp in Marsilia quadrifolia, L. ... PDF

Marsilea quadrifolia is a FERN growing to m (0ft 8in). It is hardy to zone (UK) 5. Suitable for: light (sandy) and medium (loamy) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist or wet soil and can grow in water.

On the Development of the Leaf and Sporocarp in Marsilia Quadrifolia, L [Johnson, Duncan Starr ] on *FREE* shipping on qualifying offers. On the Development of the Leaf and Sporocarp in Marsilia Quadrifolia, LCited by: 6.

On the Development of the Leaf and Sporocarp in Marsilia quadrifolia1, L. BY DUNCAN S. JOHNSON. With Plates X, XI, and XII. ALTHOUGH been frequently Marsilia studied and during the related the present Pilularia century, have been frequently studied during the present century, the exact origin and morphological significance of the.

Search result for l-marsiglia: Maria Savino. Opere (), Roma fa scuola(), On the Development of the Leaf and Sporocarp in Marsilia Quadrifolia, L(), Vincenzo Marsiglia. Star interactive(), Cuevas de cielo. Viaje en el corazon de los glaciares(), De Pisis a villa Fiorita. On the Development of the Leaf and Sporocarp inMarsilia quadrifolia L.

Ann. of Bot, (). Google Scholar Karsten, G.: Morphologische und biologische Untersuchungen über einige Epiphytenformen der Molukken. ON THE LEAF AND SPOROCARP OF PILULARIA. DUNCAN S. JOHNSON. (WITH PLATES I-III) DURING the course of some work on the development of the foliar structures of Marsilia quadrifolia L., the results of which have been published elsewhere ('98), a brief examination was also made of the same structures in the related Pilularia.

''Marsilea quadrifolia L., a circumboreal species, is often mentioned as occurring in Africa, but this is certainly not correct for sub-Saharan Africa, and all information published for Marsilea quadrifolia in this area must be attributed to other species.

Description Growth and development Ecology. Marsilea quadrifolia L. experiencing extreme variation in environment develops submerged, floating, emergent and terrestrial leaves (Liu, ; Lin et al., ). These different forms of leaves.

Bower, F. O.: comparative Morphology of the Leaf of the vascular Cryptogams and Trans. roy. Soc. Lond, Teil II, – (). Google Scholar. This banner text can have markup.

web; books; video; audio; software; images; Toggle navigation. land leaf petiole and the sporocarp are similar to Abstract In order to conserve and multiply the aquatic fern Marsilea quadrifolia L., in a long-term in vitro procedure, the effects of.

Duncan S. Johnson Born: Cromwell, CT 7/21/; died 2/16/ Education: Wesleyan (B.S. ); Johns Hopkins (Ph.D. ) Dissertation title: On the development of the leaf and sporocarp in Marsilia quadrifolia, L Primary specialty: Embryology and plant development Teaching history: Johns Hopkins (?) Ph.

Students: Forrest Shreve ‹ Willis L. Jepson. Marsilea minuta L. Accepted name Plantae > Tracheophyta > Polypodiopsida > Salviniales > Marsileaceae > Marsilea > Marsilea minuta L.

The leaves of M. quadrifolia are quadrifid, resembling those of a four-leaf clover (Fig. 1) with the young leaf circinate in vernation and the pinnae folded together until late in development (Gifford and Foster, ).

The leaves are supported by a petiole that ranges from 5 - 16 cm in length and occurs at the node of the creeping rhizome.

The genus Marsilea comprises about 58 living genus is worldwide in distribution and is very common in warmer parts of the world. The species of Marsilea are aquatic or amphibious plants – they grow either completely sub-merged in water, or partly or wholly out of water with their roots embedded in the muddy soil.

Up to the time the cavities begin to form, the young fruit is composed of uniform tissue, but shortly after, the tissue sys- tems become differentiated, and the peduncle of the sporocarp is formed. At this time the vascular bundle of the peduncle can be recognised, and joins that of the sterile segment near.

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Fig. 2S5.—Marsilia quadrifolia. A, Hor. Huie, L. - Changes in the Gland-Cells of Drosera produced by various Food-materials Johnson, D. - On the Development of the Leaf and Sporocarp in Marsilia quadrifolia, L.

(With Plates X-XII) Jones, C.

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- Anatomy of the Stem of Species of Lycopodium. Klebs, G. - Alternation of Generations in the Thallophytes. Lang. The plant body is the sporophyte differentiated into Creeping rhizome, root and leaves.; Creeping rhizome: Grows beneath the soil, highly branched with nodes and internodes. Roots and leaves arise from the nodes; Leaves: rhizome forms single leaf from a consisits of long petiole with pinnae at the tip; Function: photosynthesis Roots arising from node.

Duncan S. Johnson Born: Cromwell, CT 7/21/; died 2/16/ Education: Wesleyan (B.S. ); Johns Hopkins (Ph.D. ) Dissertation title: On the development of the leaf and sporocarp in Marsilia quadrifolia, L Primary specialty: Embryology and plant development Teaching history: Johns Duncan S.

Johnson Read More». Abstract. Heterosporous ferns (Salviniales) are a group of approximately 70 species that produce two types of spores (megaspores and microspores).

Earlier broa. The leaves are circinate, simple, or palmate with 2 or 4 sessile leaflets, veins dichotomous, often fusing apically. Sporocarps (interpreted as modified pinnate leaves or pinnae) are reniform with a stalk arising from the petiole base or leaf axil, each sporocarp bearing two .Species commonly seen include M.

crenata, M. hirsuta, M. quadrifolia, M. mutica and M. minuta. Less common are M. drummondii and M. angustifolia. The easiest species to differentiate in this group is M. minuta. With lush nutrients and high light, its leaves will be .MOTHER-CELLS OF MARSILIA QUADRIFOLIA.

w. MARQUETTE. (With Plates Vlll and ax.) In a recent paper,l I incidentally called attention to the fact that during the synapsis stages of spore mother-cells of MarsiliΠquadrifolia the starch grains, which are almost invariably pres- ent at that time, are aggregated in a definite region of the cell.