Article: platyspermic
A Dictionary of Plant Sciences;      14 words ...platyspermic In seed plants, having seeds that are flattened and bilaterally symmetrical.

Article: Angiospermae
A Dictionary of Plant Sciences;      27 words ...Angiospermae Formerly, one of the 2 divisions of the Spermatophyta (seed plants), the other being the Gymno-spermae. The term is now used only informally. (See ANGIOSPERM .)

Article: seed plants
A Dictionary of Plant Sciences;      58 words ...seed plants The group that comprises the gymnosperms and angiosperms , plants distinguished...pteridophyte forebears, probably of a heterosporous character. These early seed plants were gymnosperms. Angiosperms are not certainly represented in the fossil...

Article: cotyl
A Dictionary of Plant Sciences;      17 words ...cotyl In seed plants, the point where the hypocotyl and epicotyl meet and the cotyledons arise. Compare COLLET .

Article: embryo
A Dictionary of Plant Sciences;      17 words ...embryo A young plant developed from an ovum sexually or asexually and, in seed plants , contained within the seed.

Article: Pteropsida
A Dictionary of Biology;      26 words ...Pteropsida In older classifications, a subdivision of tracheophytes that contained the ferns and seed plants, or a class of the Pteridophyta containing only the ferns.

Article: secondary growth
A Dictionary of Biology;      62 words ...secondary growth ( secondary thickening ) The increase in thickness of plant shoots...and gymnosperms but not in monocotyledons. The tissues produced by secondary growth are called secondary tissues and the resultant plant or plant part...

Article: pericarp
World Encyclopedia;      23 words ...pericarp In seed plants, the wall of a ripened fruit that is derived from the ovary wall. The tissues of the pericarp may be fibrous, stony, or fleshy.

Article: Cycadophyta
A Dictionary of Biology;      57 words ...Cycadophyta A phylum of seed plants (see gymnosperm ) that contains many extinct species; the few modern representatives of the...stem bears a crown of fernlike leaves. These species are among the most primitive of living seed plants.

Article: Pteridophytes
Biology;      700+ words ......closest living relatives (sister group) to the seed plants. (Seed plants include the angiosperms, the conifers, and a smaller assortment of other plants.) As in seed plants, the greatest diversity of pteridophytes is found...

Article: cryptogam
The Columbia Encyclopedia, Sixth Edition;      78 words ......means of sexual reproduction in these plants was not then apparent. In contrast, in the seed plants the reproductive organs are easily seen; the seed plants have accordingly been termed phanerogams, from the Greek phaneros, meaning visible.

Article: SYRIA: SP 1.5 BILLION ALLOCATED FOR SILO PROJECTS.(Syrian General Company for Silos, Feed Mills and Seed Plants)(Brief Article)
IPR Strategic Business Information Database;  August 30, 2004 ;     78 words ......2004), the Syrian General Company for Silos, Feed Mills and Seed Plants (GESILOS) allocated SP 1.5 billion for new investment projects...silos in Syria. The General Company for Silos, Feed Mills and Seed Plants (GESILOS) is an establishment of the MSIT. Most wheat storage...

Article: sporangium
A Dictionary of Biology;      59 words ......megaspores, which give rise to the female gametophyte; in seed plants it is represented by the ovule . A microsporangium produces...give rise to the male gametophyte; it is represented in seed plants by the pollen sac . See also sporophyll .

Article: Spermatophyta
A Dictionary of Earth Sciences;      31 words ...Spermatophyta ( seed plants ) A division of the plant kingdom comprising the angiosperms and gymnosperms . It may also be ranked as a subdivision (Spermatophytina) of the Tracheophyta (vascular plants).