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التركية - الإنجليزية
spermatophyta
They form the most numerous group, including over 120,000 species
seed plants; comprises the Angiospermae (or Magnoliophyta) and Gymnospermae (or Gymnospermophyta); in some classification systems Spermatophyta is coordinate with Pteridophyta (spore producing plants having vascular tissue and roots) and Bryophyta (sporeproducing plants lacking vascular tissue and roots)
by the extreme reduction of the gametophyte; and by the development of seeds
A phylum embracing the highest plants, or those that produce seeds; the seed plants, or flowering plants
All the Spermatophyta are heterosporous; fertilization of the egg cell is either through a pollen tube emitted by the microspore or (in a few gymnosperms) by spermatozoids
In general, the group is characterized by the marked development of the sporophyte, with great differentiation of its parts root, stem, leaves, flowers, etc
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