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apical spine rudimentary
Listing 1 - 2 from 2 for apical spine rudimentary
pollen cones china yunnan microsporophyll lamina spongy endocarp conservation status usually partly spinescent petiole long petiole distinguishing features green highly glossy fibrous layer megasporophyll lamina solomon islands dorsiventrally thickened distribution and habitat cycas bougainvilleana historical notes
Cycas bougainvilleana
... on rachis), with 130-260 leaflets, tomentum shedding as leaf expands; terminated by a spine or paired leaflets; 3-11 mm long. Petiole 30-65 cm long, pubescent, ... lamina firm, dorsiventrally thickened, apical spine rudimentary, sharply upturned. Megasporophyll lamina ovate to lanceolate, 70 mm long, 35-50 mm wide, regularly dentate, with pungent lateral spines, apical spine distinct from lateral ...
plantnet.rbgsyd.nsw.gov.au
Cycas diannanensis
... flat and not twisted on the rachis, and a large megasporophyll apex with a broad apical spine. Distribution and habitat: A widespread species through central and eastern Yunnan, along the Hong He ... mm wide, fertile zone 30-50 mm long, sterile apex 4-10 mm long, raised, apical spine rudimentary, sharply upturned, 0-2 mm long. Megasporophylls 16-24 cm long, grey-tomentose; ovules 4 ...
plantnet.rbgsyd.nsw.gov.au More from this site
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