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Topic: Marsileaceae

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	Publication
		LUPIA, R., H. PRYER, and P.R. Marsileaceae sporocarps and spores from the Late Cretaceous of Georgia, U.S.A. International Journal of Plant Sciences 161: 975-988.
		Monomegasporangy (single megaspore/megasporangium) is assumed to be one of the key innovations in the evolution of seed plants.
		On the basis of shared morphological features of the sporocarp wall structure, and in situ megaspore and microspore ultrastructure and ornamentation, these specimens are assigned to the water fern family, Marsileaceae.
	www.fieldmuseum.org /research_collections/botany/botany_sites/ferns/publications2.html (2255 words)

	Pryer, Kathleen M.* and Harald Schneider. (Site not responding. Last check: 2007-10-24)
		Marsileaceae radiated first and was the dominant heterosporous fern in the Early Cretaceous.
		Salviniaceae began to overtake Marsileaceae in species richness in the Late Cretaceous and was the most species-rich heterosporous fern group throughout most of the Cenozoic.
		In all, approximately 200 extinct species of heterosporous ferns are preserved in the fossil record, mostly in the form of microfossils with a remarkable diversity of ornamented spores.
	www.botany2002.org /section11/abstracts/18.shtml (327 words)

	Schneider, Harald, Kathleen M. Pryer, and Richard Lupia. (Site not responding. Last check: 2007-10-24)*
		The Marsileaceae have an amphibious habit, whereas the Salviniaceae are exclusively floating aquatics.
		The megaspores of Marsileaceae are dispersed freely into water and possess an ephemeral gelatinous outer perine that acts as a flexible floating apparatus.
		As with the megaspores, the microspores of Marsileaceae are freely released in water and possess a gelatinous perine layer, whereas, the microspores of Salviniaceae are retained in massulae (Azolla), or within the microsporangium (Salvinia).
	www.botany2001.org /section2/abstracts/23.shtml (338 words)

	[No title] (Site not responding. Last check: 2007-10-24)
		Marsileaceae: Images from the Vascular Plant Image Library of the Digital Flora of Texas
		Marsileaceae: Florida taxa from the Atlas of Florida Vascular Plants
		Marsileaceae: holdings from Ecology & Evolutionary Biology Conservatory - University of Connecticut
	www.csdl.tamu.edu /FLORA/cgi/gateway_family?fam=Marsileaceae (160 words)

	Marsileales - Wikipedia, the free encyclopedia
		The ferns of this order vary radically in form from one another and do not look particularly fern-like.
		Species of the families Azollaceae and Salviniaceae are natant (floating), while those of the family Marsileaceae are rooted.
		However, the natant species may temporarily grow on wet mud during times of low water, and the Marsileaceae may grow as emergent species, depending on species and location.
	en.wikipedia.org /wiki/Marsileales (136 words)

	HETEROSPOROUS FERNS: PHYLOGENY, ORIGIN AND RADIATION
		The leptosporangiate fern families Marsileaceae (Marsilea, Pilularia, Regnellidium) and Salviniaceae (Azolla and Salvinia) represent the most recent acquisition of heterospory—production of separate male gametophytes in microspores and female gametophytes in megaspores.
		Read directly from the fossil record, the first appearance of heterosporous ferns reliably dates to the earliest Cretaceous and their radiation is broadly coincident with the radiation of flowering plants and derived ferns.
		This date is consistent with macrofossil records of Marsileaceae, the first of which (Regnellites) occurs in the Berriasian.
	gsa.confex.com /gsa/2004AM/finalprogram/abstract_80062.htm (442 words)

	[No title] (Site not responding. Last check: 2007-10-24)
		The family Marsileaceae is a clearly delineated one, containing three clearly delineated genera.
		Recent research has indicated that the three groups probably belong in the same order, with the heterospory commonly derived as an adaptation to the aquatic environment.
		Chromosome counts in the family Marsileaceae appear to be based on n=10, which is probably a reduction from n=11.
	www.jaknouse.athens.oh.us /ferns/f_mars.html (113 words)

	Marsileaceae
		[ Marchantiaceae ] [ Marsileaceae ] [ Martyniaceae ]
		Marsilea L. Individual specimen entries are published in the sample database supplied with The Compleat Botanica for species or varieties of this supra-generic taxon.
		For a description of the methodology followed in establishing this hierarchy see the note Nomenclature used in The Compleat Botanica.
	www.crescentbloom.com /Plants/Familia/M/Marsileaceae.htm (61 words)

	Marsileaceae in Flora of North America @ efloras.org
		Marsileaceae in Flora of North America @ efloras.org
		Stems growing on soil surface or subterranean, main stem long-creeping and giving rise to long or short shoots only at nodes; hairs laterally attached, multicellular.
		Johnson, D. Systematics of the New World species of Marsilea (Marsileaceae).
	www.efloras.org /florataxon.aspx?flora_id=1&taxon_id=10539 (259 words)

	IPNI Plant Name Query Results
		Marsileaceae Pilularia L. Species Plantarum 2 1753 (APNI)
		Marsileaceae Pilularia globulifera L. Species Plantarum 2 1753 (APNI)
		Marsileaceae Pilularia novae-hollandiae A.Braun -- Monatsberichte der Koniglichen Akademie der Wissenschaften zu Berlin 1863 (APNI)
	www.ipni.org /ipni/plantsearch?find_isAPNIRecord=on&find_isGCIRecord=on&find_isIKRecord=on&output_format=normal&query_type=by_query&back_page=plantsearch&find_genus=Marsilea&find_species=vestita (66 words)

	[No title]
		The monophyly of the heterosporous ferns (Azollaceae, Salviniaceae, and Marsileaceae) is the most strongly supported result from all analyses in Pryer et al.
		In some early classifications, Salviniaceae, Azollaceae, and Marsileaceae were maintained as separate orders within the leptosporangiate ferns.
		In other classifications, the families were segregated as the order Hydropteridales, to emphasize the fact that they are aquatic and heterosporous.
	ag.arizona.edu /tree/eukaryotes/green_plants/embryophytes/filicopsida/Leptosporangiate_ferns.nex (2887 words)

	Steyermark's Flora of Missouri: Index of Families Treated in Volume 1 (Site not responding. Last check: 2007-10-24)
		In some species, sporocarps are only produced when the plants are emergent at or near the water's edge.
		Species of Marsileaceae are mostly colonizers of open, aquatic habitats.
		As such, populations may appear and disappear sporadically as succession occurs in the ponds and lakes whose shores they inhabit.
	www.conservation.state.mo.us /brendon/Flora/pteridac/marsilea/marsilea.htm (259 words)

	BioFinder Kategorien Suche (Site not responding. Last check: 2007-10-24)
		Marsileaceae < Farne < Arten < Botanik < Biologie
		The Vascular Plant Image Galery (Marsileaceae) from the Texas A&M University Bioinformatics Group
		The Virtual Foliage Marsileaceae Page, part of the Plant Systematics Teaching Pa
	www.biologie.uni-hamburg.de /b-online/library/biofinder/222.html (47 words)

	Marsileaceae -- the water-clover family (3/52; tropical to warm temperate; aquatic or semi-aquatic) (Site not responding. Last check: 2007-10-24)
		Marsileaceae -- the water-clover family (3/52; tropical to warm temperate; aquatic or semi-aquatic)
		Habit herbs with creeping rhizomes; adventitious roots produced at nodes
		Gametophytes unisexual, retained within spore walls, non-photosynthetic; female gametophyte protruding from spores; microspores burst as male gametophytes release sperm
	courses.plantbio.cornell.edu /biopl248/nonseed2001a/sld011.htm (115 words)

	Science> Biology> Flora and Fauna> Plantae> Polypodiophyta> Marsileopsida> Marsileaceae> Pilularia
		Biology> Flora and Fauna> Plantae> Polypodiophyta> Marsileopsida> Marsileaceae> Pilularia" href="http://www.computerrescue911.com/ODP/Science/Biology/Flora_and_Fauna/Plantae/Polypodiophyta/Marsileopsida/Marsileaceae/Pilulariarss.xml">
		Science, Biology, Flora and Fauna, Plantae, Polypodiophyta, Marsileopsida, Marsileaceae, Pilularia
		Top: Science: Biology: Flora_and_Fauna: Plantae: Polypodiophyta: Marsileopsida: Marsileaceae: Pilularia:
	www.computerrescue911.com /ODP/Science/Biology/Flora_and_Fauna/Plantae/Polypodiophyta/Marsileopsida/Marsileaceae/Pilularia (63 words)

	Science> Biology> Flora and Fauna> Plantae> Polypodiophyta> Marsileopsida> Marsileaceae> Marsilea (Site not responding. Last check: 2007-10-24)
		Biology> Flora and Fauna> Plantae> Polypodiophyta> Marsileopsida> Marsileaceae> Marsilea" href="http://www.computerrescue911.com/ODP/Science/Biology/Flora_and_Fauna/Plantae/Polypodiophyta/Marsileopsida/Marsileaceae/Marsilearss.xml">
		Science, Biology, Flora and Fauna, Plantae, Polypodiophyta, Marsileopsida, Marsileaceae, Marsilea
		Top: Science: Biology: Flora_and_Fauna: Plantae: Polypodiophyta: Marsileopsida: Marsileaceae: Marsilea:
	www.computerrescue911.com /ODP/Science/Biology/Flora_and_Fauna/Plantae/Polypodiophyta/Marsileopsida/Marsileaceae/Marsilea (72 words)

	Marsilea villosa - Ihiihi (Marsileaceae) - Plants of Hawaii - Thumbnail Images (Site not responding. Last check: 2007-10-24)
		Marsilea villosa - Ihiihi (Marsileaceae) - Plants of Hawaii - Thumbnail Images
		HEAR > USGS > Starr > Plants of Hawaii > Family Index > Species Index > Thumbnails > Slideshow
		This page was created on November 01, 2002 by Starr, and was last updated on April 14, 2007 by Starr.
	www.hear.org /starr/hiplants/images/thumbnails/html/marsilea_villosa.htm (51 words)

	MavicaNET - Vassbregnefamilien (Marsileaceae) (Site not responding. Last check: 2007-10-24)
		Katalog / Natur / Liv / Plants (Plantae) / Ferns (Pteridophyta) / Vassbregnefamilien (Marsileaceae)
		Katalog / Natur / Liv / Plants (Plantae) / Ferns (Pteridophyta) / Ferns (Polypodiophyta): Taxonomy / Ferns (Polypodiopsida) / Vassbregnefamilien (Marsileaceae)
		Katalog / Natur / Liv / Plants (Plantae) / Ferns (Pteridophyta) / Ferns (Polypodiophyta): Taxonomy / Vassbregnefamilien (Marsileaceae)
	www.mavicanet.com /lite/nor/17304.html?sortby=5 (70 words)

	igODP - Science: Biology: Flora_and_Fauna: Plantae: Polypodiophyta: Marsileopsida: Marsileaceae: Pilularia: (Site not responding. Last check: 2007-10-24)
		igODP - Science: Biology: Flora_and_Fauna: Plantae: Polypodiophyta: Marsileopsida: Marsileaceae: Pilularia:
		Top : Science : Biology : Flora_and_Fauna : Plantae : Polypodiophyta : Marsileopsida : Marsileaceae : Pilularia
		Help build the largest human-edited directory on the web.
	www.georgievi.net /dir/Science/Biology/Flora_and_Fauna/Plantae/Polypodiophyta/Marsileopsida/Marsileaceae/Pilularia (75 words)

	Definition of marsileaceae - Merriam-Webster Online Dictionary
		marsileaceae is one of more than 1,000,000 entries available at Merriam-WebsterUnabridged.com.
		For More Information on "marsileaceae" go to Britannica.com
		Get the Top 10 Search Results for "marsileaceae"
	www.m-w.com /cgi-bin/dictionary?book=Dictionary&va=Marsileaceae (82 words)

	Marsilea villosa (Marsileaceae) - HEAR species info (Site not responding. Last check: 2007-10-24)
		HEAR home > species info > plants > Marsilea villosa (Marsileaceae)
		Copyright-free images of (or related to) Marsilea villosa (Marsileaceae) (ihiihi) by Forest and Kim Starr (USGS) are presented online.
		The content of this page was last regenerated on or after 12 April 2007 by PT.
	www.hear.org /species/marsilea_villosa (368 words)

	Multilocus genetic structure at contrasted spatial scales of the endangered water fern Marsilea strigosa Willd. ...
		Marsilea strigosa (Marsileaceae, Pterydophyta) is a rare water
		being a characteristic trait of Marsileaceae and Salviniaceae:
		Schneider H. Pryer In press Structure and function of spores in the aquatic heterosporous fern family Marsileaceae.
	www.amjbot.org /cgi/content/full/89/7/1142 (6717 words)

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