...The capsules are oblate and globose, 7-10 mm in diameter, split at the dorsum, and do not form segments. The genus Boninia consists of one genus and two species, and the other species, Boninia spp., can be distinguished from Boninia by its large leaves and twigs that do not turn red even when dry. Boninia is most closely related to the Hawaiian genus Palea , but because it has four stamens (versus eight in the Palea genus), it is distinguished as an endemic genus to the Ogasawara Islands. *Some of the terminology that refers to "Oobashirotetsu" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…袋果は扁球形で径7~10mm,胞背で裂け,分果状とはならない。 シロテツ属Boniniaは1属2種からなり,他の1種オオバシロテツは小枝は乾いても赤みをおびず,葉は大きいのでシロテツから区別できる。シロテツ属はハワイ産のPalea属にもっとも近縁であるが,おしべが4本(Palea属では8本)なので,小笠原固有属として区別される。… ※「オオバシロテツ」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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