gymnosperms meaning

  "gymnosperms" in a sentence
  • [Medicine]
    Gymnosperms are a group of vascular plants whose seeds are not enclosed by a ripened ovary (fruit),in contrast to ANGIOSPERMS whose seeds are surrounded by an ovary wall. The seeds of many gymnosperms (literally,naked seed) are borne in cones and are not visible. Taxonomists now recognize four distinct divisions of extant gymnospermous plants (CONIFEROPHYTA,CYCADOPHYTA,GINKGOPHYTA,and GNETOPHYTA).


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  1. its native gymnosperms could evolve into a few species capable of growing in the warm, moist forests of queensland.
  2. the occurrence of haploid endosperm in the gymnosperms provides a sound basis for further investigations into progenies.
  3. most angiosperm ovules possess two integuments, while gymnosperms usually have only one
  4. most gymnosperms retain archegonia except for the most advanced genera gnetum and welwitschia
  5. antherozoid ( spermatozoid ) the male gamete of algae, some gymnosperms, and the non-seed-bearing plants

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