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单词 helicogyrate
释义 helicogyrate, a. Bot.|-ˈdʒaɪəreɪt|
[f. as prec. + gyrate.]
Surrounded by an obliquely placed ring, as some spore-cases. Also said of the ferns.
1857Berkeley Cryptog. Bot. §595 Fée..includes the helicogyrate ferns also in the general denomination of Polypodiaceæ.1866Treas. Bot., Helicogyrate, having a ring or gyrus carried obliquely round it; as in the spore-cases of Trichomanes.
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