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Topic: Ophioglossaceae

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Ophioglossum vulgatum

Ophioglossophyta

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	Ophioglossaceae in Flora of North America @ efloras.org (Site not responding. Last check: 2007-10-08)
		Ophioglossaceae comprise two clearly defined subfamilies, Botrychioideae and Ophioglossoideae, which are sometimes recognized as distinct families.
		Ophioglossaceae may be only distantly related to the ferns and more closely related to Marattiales and certain seedplants, especially Cycadales, in such characteristics as stelar type, cork cambium, dilated leaf bases, conduplicate vernation, intercalary leaf growth, collateral leaf traces, circular-bordered pits, eusporangia, massive gametophytes, sunken archegonia, and presence in some species of endoscopic embryos.
		Blades mostly pinnately divided or lobed; veins free; margins entire to dentate to lacerate; sporangial clusters pinnately branched, sporangia sessile or terminating short stalks.
	www.efloras.org /florataxon.aspx?flora_id=1&taxon_id=10634 (355 words)

	Ophioglossaceae - Wikipedia, the free encyclopedia
		Ophioglossaceae is a family of primitive ferns, currently thought to be most closely related to Psilotum, the two together forming the sibling group to the rest of the ferns.
		The number of genera included in the family varies between different authors' treatments, and most conservatively the family is treated as containing three genera, Ophioglossum, Botrychium, and Helminthostachys (corresponding to the three families accepted in some other treatments).
		Members of Ophioglossaceae are usually terrestrial (excepting a few epiphytic species of Ophioglossum) and occur in both temperate and tropical areas.
	en.wikipedia.org /wiki/Ophioglossaceae (306 words)

	Plant Systematics: Ophioglossaceae
		The Ophioglossaceae are a family with a nearly worldwide distribution.
		The Ophioglossaceae are one of two extant eusporangiate fern families and apparently have no close affinities to other extant ferns.
		Recent molecular evidence (Pryer et al., 2001) demonstrates that Ophioglossaceae and Psilotaceae are sister groups and are themselves siter to all other extant fern families including Equisetaceae.
	personal.denison.edu /~hauk/biol320/ophioglossaceae.html (297 words)

	Mankyua
		Also, the interesting character states in Mankyua suggests that we may not understand the plasticity of character states in Ophioglossaceae, and until further research is done on the genus we will still be in the dark about its implications for morphological evolution and systematics.
		Mankyua (Ophioglossaceae): a new fern genus from Cheju Island, Korea.
		Sun, B.-Y. Characteristics of fern flora of Korea with emphasis on the endemic genus Mankyua (Ophioglossaceae) from Cheju Island, Korea.
	www.users.muohio.edu /smithhn/mankyua.html (753 words)

	Botany 2000 - Symposium: Biology and Conservation of the Ophioglossaceae--A Tribute to Warren "Herb" Wagner Index, By ... (Site not responding. Last check: 2007-10-08)
		FARRAR, DONALD R., CINDY L. - Biology and conservation of the Ophioglossaceae-A* tribute to Warren "Herb" Wagner.
		HAUK, WARREN D. - Phylogeny of the Ophioglossaceae based on molecular and morphological characters.
		MONTGOMERY, JAMES D. - Conservation Status of the Ophioglossaceae in the Northeast.
	www.botany.org /bsa/portland/sympos5/abstracts (238 words)

	[No title] (Site not responding. Last check: 2007-10-08)
		Ophioglossaceae: Information/Images from the University of Hawaii - Manoa)
		Ophioglossaceae: Images from the Vascular Plant Image Library of the Digital Flora of Texas
		Ophioglossaceae: holdings from Ecology & Evolutionary Biology Conservatory - University of Connecticut
	www.csdl.tamu.edu /FLORA/cgi/gateway_family?fam=Ophioglossaceae (217 words)

	Botany 2000 - Symposium: Biology and Conservation of the Ophioglossaceae--A Tribute to Warren "Herb" Wagner Index, By ... (Site not responding. Last check: 2007-10-08)
		Biology and conservation of the Ophioglossaceae-A tribute to Warren "Herb" Wagner.
		- ZIKA, PETER* AND KATHLEEN E. Conservation status of Ophioglossaceae in southern Alaska, The.
		Conservation Status of the Ophioglossaceae in the Northeast.
	www.botany.org /bsa/portland/sympos5/abstracts/title.shtml (240 words)

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