资料来源 : WordNet®

division Spermatophyta
     n : 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 (spore producing plants
         lacking vascular tissue and roots) [syn: {Spermatophyta}]