angiosperm

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angiosperm

angiosperm , term denoting seed plants in which the ovules, or young seeds, are enclosed within the ovary (that part of the pistil specialized for seed production), in contrast to the gymnosperms, in which the seeds are not enclosed within an ovary. The angiosperms constitute the division Magnoliophyta and include all agricultural crops (including the cereal grains and other grasses), all garden flowers and most horticultural plants, all the common broad-leaved shrubs and trees, and all the usual field, garden, and roadside weeds. The angiosperms are the most economically important group of all plants.

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angiosperm

A Dictionary of Earth Sciences | 1999 | | Â© A Dictionary of Earth Sciences 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

angiosperm A flowering plant, distinguished by producing seeds that are enclosed fully by fruits. Angiosperms are the most highly evolved of plants, and appear first in rocks of Lower Cretaceous age. All of them are included in the division Anthophyta.

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AILSA ALLABY and MICHAEL ALLABY. "angiosperm." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 21 Nov. 2009 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "angiosperm." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (November 21, 2009). http://www.encyclopedia.com/doc/1O13-angiosperm.html

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angiosperm

A Dictionary of Plant Sciences | 1998 | | Â© A Dictionary of Plant Sciences 1998, originally published by Oxford University Press 1998. (Hide copyright information) Copyright

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MICHAEL ALLABY. "angiosperm." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 21 Nov. 2009 <http://www.encyclopedia.com>.

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	Phylogeny and Evolution of Angiosperms.(Brief Article)(Book Review) Magazine article from: SciTech Book News; 9/1/2005
	Systematic Botany of Flowering Plants: A New Phylogenetic Approach to Angiosperms of the Temperate and Tropical Regions. (CD-ROM included).(BOTANY)(Brief Article)(Book Review) Magazine article from: SciTech Book News; 6/1/2005
	Vascular organization of angiosperms; a new vision.(Brief Article)(Book Review) Magazine article from: SciTech Book News; 9/1/2005

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