Sphaerostephanos tibangensis

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Sphaerostephanos tibangensis


Asia-Tropical, East Borneo present, Mt Tibang present
Malesia: East Borneo (Mt Tibang), 1400-1700m.


This is certainly very near S. norrisii. The type consists of one fertile and one sterile frond, the latter not quite fully expanded, with immature sori. The fertile frond is smaller than any specimen undoubtedly referable to S. norrisii, and the pinnae are of a different shape; mature sori might show further differences.