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Topic: Gnetophyta

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Gnetae

Welwitschiales

Ephedrales

Vascular plant

Spermatophyta

Gnetales

Psilotophyta

Liana

Lycophyta

Succulent

Fern

Lycopodiophyta

Horsetail

Ginkgo

Cycad

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	Welwitschia
		One very unusual characteristic of the Gnetophyta is that many members possess vessels in their xylem tissue, an angiosperm trait that is not found in most gymnosperms.
		Some older references have suggested that the Gnetophyta may represent a "missing link" in the evolution of flowering plants, but others say that vessels and double fertilization are examples of parallel evolution.
		Considering all their amazing similarities, it seems quite plausible that the Gnetophyta and angiosperms may have had a common ancestor.
	waynesword.palomar.edu /welwit.htm (1101 words)

	Find gnetophyta, Cycadophyta, Coniferophyta at myEweb.com
		The plant division Gnetophyta or gnetophytes comprise three related families of...
		Gnetophyta contains only one class of living plants, class Gnetopsida.
		Die Gnetophyta haben einen verholzten Spross, der aber bei Welwitschia unterirdisch ist.
	uk.myeweb.com /search/index.php?qry_str=Gnetophyta (134 words)

	Directory - Science: Biology: Flora and Fauna: Plantae: Gnetophyta
		The Gnetophyta are a division of the plant kingdom, included among the gymnosperms.
		Subcategories for the Gnetophyta are established at the family level for the Ephedraceae and the genus level for the other representatives.
		Gnetophyta: An Enigmatic Group of Seed Plants · Slide show introduction to the group.
	www.incywincy.com /default?p=89325 (115 words)

	Science - Biology - Flora and Fauna - Plantae - Gnetophyta (Site not responding. Last check: )
		Gnetophyta - A few images of each family.
		Gnetophyta: An Enigmatic Group of Seed Plants - Slide show introduction to the group.
		Phylum Gnetophyta (Vessel Bearing Gymnosperms) - Characteristics of the group, with representative images.
	www.inter.co.yu /kategorije/Science/Biology/Flora_and_Fauna/Plantae/Gnetophyta (377 words)

	BOTW Directory - Science > Biology > Plants and Animals > Plantae > Gnetophyta
		Division: Pinophyta and Gnetophyta - Contains educational resources on this plant group.
		Gnetophyta - Provides information on the distinguishing characteristics of this plant species.
		Gnetophyta Ephedra Vessel Element - Contains images of species under this plant division.
	www.botw.org /top/Science/Biology/Plants_and_Animals/Plantae/Gnetophyta (431 words)

	Web Directory » Web Directory » Science » Biology » Flora and Fauna » Plantae » Gnetophyta
		Gnetophyta - A few images of each family.
		Gnetophyta: An Enigmatic Group of Seed Plants - Slide show introduction to the group.
		Phylum Gnetophyta (Vessel Bearing Gymnosperms) - Characteristics of the group, with representative images.
	www.dcpages.com /DC_ODP/?c=Science/Biology/Flora_and_Fauna/Plantae/Gnetophyta (132 words)

	Open Directory - Science: Biology: Flora and Fauna: Plantae: Gnetophyta
		Gnetophyta - A few images of each family.
		Gnetophyta: An Enigmatic Group of Seed Plants - Slide show introduction to the group.
		Phylum Gnetophyta (Vessel Bearing Gymnosperms) - Characteristics of the group, with representative images.
	www.dmoz.org /Science/Biology/Flora_and_Fauna/Plantae/Gnetophyta (84 words)

	Ephedra (Site not responding. Last check: )
		Gnetophyta comprise about three families, one of which occurs in central Texas.
		Gnetophyta is heterosporous and, in addition, produce highly specialized, complex reproductive and dispersal structures called seeds.
		Gnetophyta seeds are said to be "naked" since they lack a particular sort of protective covering characteristic of Anthophyta.
	www.austincc.edu /plants/ephedra.html (92 words)

	CONFIRMING THE CLASSIFICATION OF THE GNETOPHYTES AS A PHYLUM WITHIN THE SUBKINGDOM GYMNOSPERM
		The phylum Gnetophyta is a phylum within the gymnosperms; however, according to Margulis and Schwartz (1999), the Gnetophytes are possible related to the angiosperms through an extinct common ancestor.
		The Gnetophyta have seeds with two cotyledons, a feature that is exclusive to the dicotlyedons in the angiosperms and the Ginkophytes in the gymnosperm (Margulis and Schwartz, 1999).
		The purpose of this paper is to explore the relationship between the gnetophytes and the angiosperms and by using cladistic analysis, confirm the classification of the gnetophytes as a phylum within the gymnosperms rather than as a phylum within the angiosperms.
	comenius.susqu.edu /bi/202/Journal/vol10/number4/PUBLISHED/POB-PLANTS.htm (1852 words)

	Best of the Web - What's New in Science For 10/31/2005
		Gnetophyta: An Enigmatic Group of Seed Plants - Contains information on peculiarities, characteristics, and fossil records of this plant group.
		Phylum Gnetophyta (Vessel-bearing Gymnosperms) - Discusses the vegetative and reproductive characteristics of this plant group.
		Gnetophyta Welwitschia - Provides information on areas where these plant species can be found.
	botw.org /new/Science/10312005.cfm (1224 words)

	Gnetophyta - FUTEF (Site not responding. Last check: )
		The plant division Gnetophyta or gnetophytes comprise three related families of woody plants grouped in the gymnosperms, a possibly paraphyletic group of seed plant divisions.
		It is the only genus of the family Welwitschiaceae, in the order Welwitschiales, in the division Gnetophyta.
		Related Categories: Gnetophyta; Indonesian cuisine; Edible nuts and seeds; Trees
	futef.com /q/cats:[Gnetophyta] (270 words)

	Gnetophyta
		Die Gnetophyta bilden eine Abteilung der Samenpflanzen (Spermatophyta).
		Die Gnetophyta haben einen verholzten Spross, der aber bei Welwitschia unterirdisch ist.
		Innerhalb der Gnetophyta existiert eine einzige Klasse, die Gnetopsida, mit drei Familien mit jeweils nur einer Gattung:
	www.weblexikon.de /Gnetophyta.html (138 words)

	Neorunner Web Directory - Gnetophyta - Science - Biology - Flora and Fauna - Plantae - Gnetophyta
		Gnetophyta - - A few images of each family.
		Gnetophyta: An Enigmatic Group of Seed Plants - - Slide show introduction to the group.
		Phylum Gnetophyta (Vessel Bearing Gymnosperms) - - Characteristics of the group, with representative images.
	www.neorunner.com /Directory/Science/Biology/Flora_and_Fauna/Plantae/Gnetophyta (85 words)

	gnetophyta
		Most flowering plants contain vessel elements, too, providing evidence to some botanists that the Gnetophyta might have been ancestral to angiosperms.
		Gnetophyta's unique fertilization feature is that a tube grows from the eggs to unite with the pollen tubes in order for fertilization to take place between the gametophytes.
		The sperm themselves are not motile, like we see in the cycads and gingko.
	www2.mcdaniel.edu /Biology/botf99/gynopsperms/gnetfolder/gnetophyta.htm (262 words)

	Learn more about Gnetophyta in the online encyclopedia. (Site not responding. Last check: )
		Learn more about Gnetophyta in the online encyclopedia.
		Enter a phrase or search word in the box below.
		Hint: Play with putting spaces before and after your words to see the different results you get.
	www.onlineencyclopedia.org /g/gn/gnetophyta.html (145 words)

	Gnetophyta bei Ratgeber Lexikon - Beschreibung und Bedeutung
		Gnetophyta bei Ratgeber Lexikon - Beschreibung und Bedeutung
		In der Abteilung (Biologie) Gnetophyta werden verschiedene Nacktsamer zusammengefasst.
		Die Gnetophyta haben einen verholzten Spross, der aber zum Teil (bei Welwitschia) unterirdisch ist.
	www.ratgeber-lexikon.de /informationen/Gnetophyta.shtml (178 words)

	Gnetophyta, Introductions to both Fossil and Recent Plant Taxa, Links for Palaeobotanists
		Gnetophyta, Introductions to both Fossil and Recent Plant Taxa, Links for Palaeobotanists
		Thorsten Hebben, Department of Biological Sciences, University of Alberta, Edmonton, Canada: Gnetophyta: An Enigmatic Group of Seed Plants.
		Presentation on Gnetophyta: An Enigmatic Group of Seed Plants (Author: Thorsten Hebben).
	www.mineralogie.uni-wuerzburg.de /palbot/taxa/gnetophyta.html (229 words)

	Sample test questions (Site not responding. Last check: )
		The genus Magnolia has a _____________ colored flower and is pollinated by _______________ 2).
		Which of the following are both seed bearing plants : a) hepaticophyta and psilophyta b) ginkgophyta and gnetophyta c) gnetophyta and pterophyta d) gnetophyta and psilophyta 3).
		The genus Zamia is found in __1__ and is in the phylum __2__.
	web.fccj.org /~dbyres/botsampletest4.htm (503 words)

	Excite Deutschland - Science - Biology - Flora and Fauna - Plantae - Gnetophyta
		Excite Deutschland - Science - Biology - Flora and Fauna - Plantae - Gnetophyta
		> Science > Biology > Flora and Fauna > Plantae > Gnetophyta
		Gnetophyta: An Enigmatic Group of Seed Plants Speichern
	www.excite.de /directory/Science/Biology/Flora_and_Fauna/Plantae/Gnetophyta (44 words)

	Gnetophyta Terms and Definitions at www.MedicalGlossary.org
		A plant division of seed plants containing only a few members.
		Ephedra - A plant genus of the family Ephedraceae, order Ephedrales, class Gnetopsida, division Gnetophyta.
		Gnetum - A plant genus of the family Gnetaceae, order Gnetales class Gnetopsida, division GNETOPHYTA.
	www.medicalglossary.org /gymnosperms_gnetophyta_definitions.html (190 words)

	Gnetophyta - Plantae, Flora and Fauna, Biology - www.zaz.com (Site not responding. Last check: )
		Gnetophyta - Plantae, Flora and Fauna, Biology - www.zaz.com
		Gnetophyta: An Enigmatic Group of Seed PlantsGnetophyta: An Enigmatic Group of Seed Plants
		Phylum Gnetophyta (Vessel Bearing Gymnosperms)Phylum Gnetophyta (Vessel Bearing Gymnosperms)
	www.hotzaz.com /Science/Biology/Flora_and_Fauna/Plantae/Gnetophyta/?s=ad1398ebdebd8fa32c81f90b6f0efd77 (90 words)

	Gnetophytes, Mormon Tea And Non-Flowering Woody Plants (Gnetophyta) \| Division
		Home • Plants • Kingdom Plantae • Gnetophytes, Mormon Tea And Non-Flowering Woody Plants (Gnetophyta)
		Welcome to Garden Guides' plant type taxonomy guide, currently showing is the Division Gnetophyta (scientific name), commonly known as Gnetophytes, Mormon Tea And Non-Flowering Woody Plants.
		Gnetophyta is a member of the Kingdom Plantae (Plants).
	www.gardenguides.com /plants/taxonomy.asp?tax=105345 (94 words)

	Excite UK - Science - Biology - Flora and Fauna - Plantae - Gnetophyta
		Excite UK - Science - Biology - Flora and Fauna - Plantae - Gnetophyta
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		Gnetophyta: An Enigmatic Group of Seed Plants Save
	www.excite.co.uk /directory/Science/Biology/Flora_and_Fauna/Plantae/Gnetophyta (85 words)

	Mormon Tea And Other Gnetophytes (Gnetopsida) \| Class
		Home • Plants • Kingdom Plantae • Division Gnetophyta • Mormon Tea And Other Gnetophytes (Gnetopsida)
		Welcome to Garden Guides' plant type taxonomy guide, currently showing is the Class Gnetopsida (scientific name), commonly known as Mormon Tea And Other Gnetophytes.
		Gnetopsida is a member of the Division Gnetophyta (Gnetophytes, Mormon Tea And Non-Flowering Woody Plants).
	www.gardenguides.com /plants/taxonomy.asp?tax=105445 (79 words)

	Gnetophyta: Plantae at Canadian Content
		Canadian Content > Science: Biology: Flora_and_Fauna: Plantae: Gnetophyta:
		Additional Information: The Gnetophyta are a division of the plant kingdom, included among the gymnosperms.
		Living representatives are found in 3 families in the Class Gnetopsida, Order Gnetales.
	www.canadiancontent.net /dir/Top/Science/Biology/Flora_and_Fauna/Plantae/Gnetophyta (137 words)

	DaVinci: Science> Biology> Flora and Fauna> Plantae> Gnetophyta> Ephedraceae> Ephedra> Ephedra fragilis
		Biology> Flora and Fauna> Plantae> Gnetophyta> Ephedraceae> Ephedra> Ephedra fragilis" href="http://www.bluegrassdavinci.com/ODP/Science/Biology/Flora_and_Fauna/Plantae/Gnetophyta/Ephedraceae/Ephedra/Ephedra_fragilis/rss.xml">
		Science, Biology, Flora and Fauna, Plantae, Gnetophyta, Ephedraceae, Ephedra, Ephedra fragilis
		Top: Science: Biology: Flora_and_Fauna: Plantae: Gnetophyta: Ephedraceae: Ephedra: Ephedra_fragilis:
	www.bluegrassdavinci.com /ODP/Science/Biology/Flora_and_Fauna/Plantae/Gnetophyta/Ephedraceae/Ephedra/Ephedra_fragilis (43 words)

	Open directory - Gnetophyta - Plantae - Flora and Fauna - Biology - Science (Site not responding. Last check: )
		Open directory - Gnetophyta - Plantae - Flora and Fauna - Biology - Science
		Main - Science - Biology - Flora_and_Fauna - Plantae - Gnetophyta
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	www.seodor.com /Science/Biology/Flora_and_Fauna/Plantae/Gnetophyta.html (119 words)

	gnetophyta definition from the Dictionary of Words Online (Site not responding. Last check: )
		Found 1 hit - Term: gnetophyta, Database: *, Strategy: exact
		gnetophyta n : gymnospermous flowering plants; supposed link between conifers and angiosperms; in some systems classified as a class gnetopsida and in others as a subdivision gnetophytina or gnetophyta syn: gnetopsida, class gnetopsida, gnetophytina, subdivision gnetophytina see also: gnetopsida class gnetopsida gnetophytina subdivision gnetophytina
		Gnetophyta, definition from the Dictionary of Words Online
	www.dictionaryofwords.com /gnetophyta_pag1.html (86 words)

	Gnetophyta
		Die Gnetophyta haben einen verholzten Spross, der aber zum Teil (bei Welwitschia) unterirdisch ist.
		Die Blüten sind eingeschlechtlich, haben also entweder nur weibliche oder nur männliche Organe.
		Innerhalb der Gnetophyta existiert eine einzige Klasse, die Gnetopsida, mit je Familie nur einer Gattung:
	www.biologie.de /biowiki/Gnetophyta (150 words)

	AT&T Worldnet Service - Directory
		Directory Science / Biology / Flora and Fauna / Plantae / Gnetophyta
		Gnetophyta: An Enigmatic Group of Seed Plants - http://www.biology.ualberta.ca/courses.hp/bot511/
		The Open Directory is a listing of links and sites recommended by Internet users.
	www.att.net /cgi-bin/webdrill?catkey=gwd/Top/Science/Biology/Flora_and_Fauna/Plantae/Gnetophyta (143 words)

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