单词 | pteridospermous |
释义 | > as lemmaspteˌridoˈspermous pteˌridoˈspermous adj. of, or relating to,or characteristic of a pteridosperm. ΚΠ 1905 Proc. Royal Soc. B. 76 245 (title) A Type of pteridospermous seed from the Coal Measures. 1956 S. Haden-Guest et al. World Geogr. Forest Resources 29 There is considerable reason to believe that the poleward temperate regions of the time also supported at least a scattered assortment of pteridospermous types. 2000 Paleogeogr., Paleoclimatol. & Paleoecol. 161 74/1 This taxonomic assignment is based on the persistent presence of pteridospermous reproductive organs in the investigated floras. < as lemmas |
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