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Topic: Nonvascular plant

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Vascular plant

Gametophyte

Division (biology)

Bryophyta

Hornwort

Meristem

Fern

Liverwort

Musci

Moss

Bryophytes

Cycad

Roman Empire

Hornwort

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	Plant (Site not responding. Last check: 2007-10-18)
		Plants are a part of that categorization effort and whether defining "plant" narrowly or broadly, we must include some reference to the classification system in any scholarly effort to gain or give information about them.
		The angiosperms are the last major group of plants to appear, emerging during the Jurassic, with a major radiation in the Cretaceous that resulted in their becoming the predominant land plants in most biomes.
		Perennial vascular plants may be either evergreen, and keep their leaves all year round, or deciduous and lose their leaves for part of the year.
	www.bidprobe.com /en/wikipedia/p/pl/plant.html (1485 words)

	Non-vascular plant - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-18)
		In these groups, the actual plants are haploid, with the only diploid part being the sporangia.
		Because these plants lack the water-conducting tissues, they fail to achieve the structural complexity and size of vascular plants.
		These groups may be considered the "lower" plants, but "lower plants is also often used to refer to non-vascular plants and ferns and fern allies.
	en.wikipedia.org /wiki/Nonvascular_plant (173 words)

	Nonvascular Plants
		Nonvascular plants are the simplest of all land dwelling plants.
		The sporophyte in nonvascular plants is smaller and shorter lived than the gametophyte, and it depends on the gametophyte for survival.
		Nonvascular plants are also particularly susceptible to air and water pollution, which makes them good indicators of the purity of the environment.
	www.cartage.org.lb /en/themes/Sciences/BotanicalSciences/ClassificationPlants/Cryptogamia/Bryophyta/Nonvascular/nonvascular.htm (1351 words)

	Vascular plant -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-18)
		Vascular plants have water-carrying tissues, termed (Long tubular cell peculiar to xylem) tracheids, in their tissues, enabling the plants to evolve larger and more elaborate structures, while non-vascular plants lack these and are restricted to relatively small sizes.
		In vascular plants, the principal generation phase is the (The spore-producing individual or phase in the life cycle of a plant having alternation of generations) sporophyte, which is ((genetics) an organism or cell having two sets of chromosomes or twice the haploid number) diploid with two sets of chromosomes per cell.
		In non-vascular plants, the principal generation phase is often the (The gamete-producing individual or phase in the life cycle of a plant having alternation of generations) gametophyte, which is ((genetics) an organism or cell having only one complete set of chromosomes) haploid with one set of chromosomes per cell.
	www.absoluteastronomy.com /encyclopedia/v/va/vascular_plant.htm (580 words)

	plants
		All of the land plants are distinguished from the ancestral green algae by having multicellular reproductive organs with a sterile jacket of cells surrounding the gametes or spores, and by the development of an embryo sporophyte from the zygote, while still within the protecting jacket of the parent archegonium, the female sex organ.
		The embryo of seed plants begins its existence as a parasite on a nutritive tissue within the seed, which in the gymnosperms is the vegetative tissue of the female gametophyte.
		The plants are dioecious, that is the microsporangiate and megasporangiate structures are on separate plants.
	www.nsci.plu.edu /~jmain/b323web/pages/plants.htm (3032 words)

	Bryophyte Photos
		Unlike the stomata of vascular plants which close in dry weather, the air pores of liverworts remain open all the time.
		The lobed, dorsi-ventrally flattened thallus (nonvascular plant body) floats on the surface of quiet streams and ponds.
		Massive submersed colonies of this minute plant are a haven for small aquatic insect larvae.
	waynesword.palomar.edu /bryoph1.htm (552 words)

	Glencoe Online Science Quiz Chapter
		A _____ is a vascular plant that reproduces with spores.
		A ______is a small nonvascular plant that has stems and leaves but no roots.
		Plants that do not have tubelike cells are called ________.
	www.glencoe.com /qe/science.php?qi=2033 (135 words)

	Native Vascular Plants
		About 17,000 species of vascular plants are native to one or more of the 50 U.S. states, along with several thousand additional native subspecies, varieties, and named natural hybrids (Kartesz 1994).
		While many exotic plant species are desirable in some contexts (such as horticulture), hundreds of invasive non-natives have become major management problems when established in places valued as natural areas (McKnight 1991; U.S. Congress 1993).
		Many plants that have been lost from these states may now be similarly threatened in portions of their remaining ranges.
	biology.usgs.gov /s+t/noframe/j085.htm (2384 words)

	Biological Diversity 5
		Plants have an alternation of generations: the diploid spore-producing plant (sporophyte) alternates with the haploid gamete-producing plant (gametophyte).
		Plants that produce separate male and female gametophytes have those gametophytes germinate from (or within in the case of the more advanced plants) spores of different sizes (heterospores; hetero=different).
		Vascular plants tend to be larger and more complex than bryophytes, and have a life cycle where the sporophyte is more prominent than the gametophyte.
	www.emc.maricopa.edu /faculty/farabee/BIOBK/BioBookDiversity_5.html (2710 words)

	Encyclopedia: Division (biology)
		In biology, the equivalent of a phylum in the plant or fungi kingdom is called a division.
		The main plant divisions, in the order in which they probably evolved, are the mosses (Division Bryophyta), the ferns (Division Filicophyta), the horsetails (Division Sphenophyta), the Cycads (Division Cycadophyta), the Ginkgo (Division Ginkgophyta), the conifers (Division Pinophyta), the Gnetophytes (Division Gnetophyta), and the angiosperms (Division Anthophyta).
		Angiosperms are the flowering plants that now dominate the plant world (80% of all vascular plants are angiosperms).
	www.nationmaster.com /encyclopedia/Division-(biology) (480 words)

	Learn more about Moss in the online encyclopedia. (Site not responding. Last check: 2007-10-18)
		Moss is a type of simple plant or nonvascular plant, of the Division Bryophyta, that have rhizoids instead of true roots.
		the plant's cells are haploid for most of its life cycle.
		The mosses are classified as a class Musci in the division (or phylum) Bryophyta within the Kingdom Plantae.
	www.onlineencyclopedia.org /m/mo/moss.html (767 words)

	[No title] (Site not responding. Last check: 2007-10-18)
		Plant and green algae have the same types of chlorophyll and ___________.
		Fossils of early plants are similar to the ancient green algae.
		Vascular plants use tube-like structures to carry water and nutrients throughout the plant.
	www.plaisancepavillion.org /Plant_Structure_and_Reproduction_CA.doc (1316 words)

	Botany Lesson 2
		Information on how plants are different from other living things as well as a list of the major groups of plants is presented.
		Whether people eat plants or eat animals that feed on plants, plant life is vital as a food source.
		Plants are all members of the Kingdom Plantae (Plant) and share certain basic characteristics.
	www.4j.lane.edu /~whitley/botany/lessons/lesson01/botless1.html (502 words)

	nonvascular plants (Site not responding. Last check: 2007-10-18)
		BIOLOGICAL DIVERSITY: NONVASCULAR PLANTS AND NONSEED VASCULAR PLANTS.
		The California Native Plant Society is concerned that nonvascular plants (cryptograms) such as lichens, algae, fungi, mosses, and liverworts are not usually considered as a biological resource...
		Nonvascular plants have been reduced in number, diversity, abundance, and range (as many...
	www.flowers-universe.com /articles/20/nonvascular-plants.html (462 words)

	Chapter 30, Plant Evolution and Classification Study Guide (Site not responding. Last check: 2007-10-18)
		A ____________________ is a ripen ovary that surrounds the seeds of angiosperms.
		Nonvascular plants are distinguished by the absence of ______________________ and ____________________________.
		Plants remove carbon dioxide from the air by the process of ________________________.
	www.sirinet.net /~jgjohnso/plantstudy.html (718 words)

	Natural Resources (Site not responding. Last check: 2007-10-18)
		Included are 1,017 known vascular plant species, ten of which are found only in the park, and 231 nonvascular plant species.
		At least 81 of the plant and ten of the vertebrate species are not native to the park.
		Several plant communities—notably aspen, dry grass, dry shrub, ponderosa pine, and riparian (streamside) meadows and willow habitats—are at risk from non-native plant species that invade after disturbances such as fire.
	www.npca.org /across_the_nation/park_pulse/rocky_mountain/assessment/natural.asp (3330 words)

	Natural Resources: Native Biodiversity (Site not responding. Last check: 2007-10-18)
		But it is known that 179 native vascular plant species in Waterton Lakes are rare throughout Alberta, 22 are found nowhere else in Alberta, and two are found nowhere else in Canada.
		About 30 of the native vascular plant species that grow in Glacier are found only in the Crown of the Continent Ecosystem portion of northwestern Montana, northern Idaho, southern Alberta, and southeastern British Columbia.
		As one example, non-native plants such as spotted knapweed, oxeye daisy, leafy spurge, Canada thistle, and sulphur cinquefoil are out-competing native species.
	npca.org /across_the_nation/park_pulse/glacier/assessment/native.asp (1897 words)

	JGI - Why Sequence Seed Plant Mitochondria?
		Plant mtDNAs also frequently and persistently incorporate chloroplast and nuclear sequences, some of which are used in the mitochondria (e.g., captured chloroplast tRNA genes--no other organellar genomes take up exogenous cellular DNA like this).
		For example, certain plant mtDNAs have been found to be extraordinarily active in functionally transferring their genes to the nucleus, whereas this process has virtually ceased among animals and fungi.
		Plant mtDNAs are also remarkably active in horizontal transfer of both mobile introns and standard genes; indeed, plant mtDNAs are the only genomes of multicellular eukaryotes found to transfer genes horizontally within a phylum.
	www.jgi.doe.gov /sequencing/why/CSP2005/angiospermmito.html (448 words)

	Glencoe Online Science Quiz Chapter
		The reason most plant leaves look green is because of __________ in their cells.
		The process where light energy is trapped in a plant's chlorophyll and produces sugars is called __________.
		Auxin is a hormone that causes plants to respond to __________.
	www.glencoe.com /qe/science.php?qi=226 (224 words)

	Classification of Ecological Communities
		Standard references for nonvascular plant names used in naming and describing ecological communities are the same as those listed for the nonvascular plant species presented in NatureServe Explorer.
		Plant species that are dominant (cover the greatest area) and diagnostic (found consistently in some vegetation types but not others) are the foundation of alliance and association names.
		By plant community type, we mean a vegetation classification unit at the association or alliance level, where these are available in the International Vegetation Classification (IVC) and its U.S. or Canadian components, the USNVC and CNVC (Grossman et al.
	www.natureserve.org /explorer/classeco.htm (3232 words)

	Non-vascular community ecology
		As much as plants are often overlooked in conservation programs and the media at large, nonvascular plants are generally treated even worse.
		The final size of a lichen colony is often dictated by the point in time that their host substrate dies or suffers a severe physical disturbance, though some species growth is also strongly influenced by air quality.
		Though many “vascular” plant ecologists lump all nonvascular plants together when measuring biomass and area, each species of non-vascular plant can in fact be very different from the others – each with its own unique niche.
	www.biology.ualberta.ca /courses.hp/bot332/labs/nonvascular.htm (1270 words)

	Plant Taxonomy (Site not responding. Last check: 2007-10-18)
		Nonvascular plants do not have specialized tissues for conducting food and water.
		The ginkgo is a hardy deciduous tree that is planted as an ornamental.
		Conifers are woody plants with needle or scale-like leaves that form cones.
	www.howe.k12.ok.us /~jimaskew/bottax.htm (1092 words)

	nonvascular plants (Site not responding. Last check: 2007-10-18)
		One famous lady once told me about nonvascular plants, and we were amazed...
		Although the prices for nonvascular plants internationally may be better than say New Zealand you...
		This website is an independent publication and has not been authorized, sponsored or otherwise approved or affiliated by or with any of the companies or entities identified on this website.
	www.first-in-plants.com /2/nonvascular-plants.html (580 words)

	Plant Kingdom (Site not responding. Last check: 2007-10-18)
		First, there is a waxy cuticle on the plant to prevent water loss; second, they produce gametes in gametangia.
		However, these plants require water for the sperm to swim from the antheridium to the archegonium to fertilize the egg.
		Some examples of the nonvascular plants are mosses and liverworts.
	emaleth.com /Taxonomy/Plant.htm (483 words)

	Mr and Mrs Smiths Life Science: Plants (Site not responding. Last check: 2007-10-18)
		Bryophytes: Mosses, Liverworts, and Hornworts "Bryophytes" is a resource devoted to Bryology, the branch of plant science concerned with the study of mosses, liverworts and hornworts.
		It is the story of plant discovery and use, and addresses the roles of plants in human civilization.
		An Introduction to Ferns Ferns and related plants are found all over the world, from sea-level to high mountains.
	members.aol.com /ksmith9526/GlobeChapter7TypesofPlants.htm (1194 words)

	Flowering Plant Reproduction II
		In flowering plants, gametophyte phases are reduced to a few cells dependant for their nutrition on the sporophyte phase.
		Flowering Plant Family Recognition and World Wide Flowering Plant Family Identification (Ray Phillips, Colby College) Illustrated guide to the "essential" families for Phillips' class.
		Plant Biology (University of Maryland) Text, outlines, and images that are part of a general botany course.
	www.emc.maricopa.edu /faculty/farabee/BIOBK/BioBookflowersII.html (1140 words)

	NatureServe: Jobs (Site not responding. Last check: 2007-10-18)
		Working in partnership with its member programs—75 independent natural heritage programs and conservation data centers that gather scientific information on rare plants and animals and ecosystems in the United States, Latin America, and Canada—NatureServe is a leading source for the biodiversity information that is essential for effective conservation action.
		A masters degree in botany, ecology, or biology with coursework in plant taxonomy, biogeography, and plant ecology; or equivalent experience.
		Familiarity with plant conservation issues and strategies desirable; familiarity with the methodology of the state natural heritage programs also desirable.
	www.natureserve.org /job/jobBotanyresearchasst.jsp (684 words)

	BOTANY 2100 HOME PAGE (Site not responding. Last check: 2007-10-18)
		Vascular and Nonvascular Plant Families descriptions and images from the University of Hawaii.
		Plant Taxonomy from Colby College is a clearly organized and well done page that can be very useful.
		The International Plant Names Index is a comprehensive, database of the scientific names and associated bibliographical details of all vascular (seed) plants.
	biology.nwc.cc.wy.us /biology/bot2100/bot2100.htm (644 words)

	LIVERWORT - Definition (Site not responding. Last check: 2007-10-18)
		A ranunculaceous plant ({Anemone Hepatica}) with pretty white or bluish flowers and a three-lobed leaf; -- called also {squirrel cups}.
		A flowerless plant ({Marchantia polymorpha}), having an irregularly lobed, spreading, and forking frond.
		Note: From this plant many others of the same order ({Hepatic[ae]}) have been vaguely called liverworts, esp.
	www.hyperdictionary.com /dictionary/liverwort (90 words)

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