Sphaerostephanos irayensis

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Sphaerostephanos irayensis


Asia-Tropical: Philippines (Philippines present), Batanes Islands present
Malesia: Philippines (Batanes Islands, 3 collections).


This very interesting and isolated species needs further study. The type of C. irayensis resembles species of Plesioneuron in aspect and texture, but its glands (on sporangia), and venation and sinus-characters are unlike that genus.


Copel. 1960: Fern Fl. Philip.: 340