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Botrychium : ウィキペディア英語版
Botrychium

Botrychium is a genus of ferns, seedless vascular plants. ''Botrychium'' species are known as moonworts. They are small, with fleshy roots, and reproduce by spores shed into the air. One part of the leaf, the trophophore, is sterile and fernlike; the other, the sporophore, is fertile and carries the clusters of sporangia or spore cases. Some species only occasionally emerge above ground and gain most of their nourishment from an association with mycorrhizal fungi. They are unusual among tracheophytes ("higher plants") in that at least some species produce the sugar trehalose.

The circumscription of ''Botrychium'' is disputed between different authors; some botanists include the genera ''Botrypus'' and ''Sceptridium'' within ''Botrychium'', while others treat them as distinct. The latter treatment is provisionally followed here.
==Selected species==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Botrychium」の詳細全文を読む



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