Sphaerostephanos grandescens

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Sphaerostephanos grandescens


Hairs on lower surface of rachis pale, curved, spreading, 0.6 mm long, on upper surface similar but appressed.


Asia-Tropical: Philippines (Philippines present), Mindoro present, Mt Halcon present
Malesia: Philippines (Mindoro: Mt Halcon).


This specimen was named Dryopteris bordenii (here placed as a variety of S. hetero- carpus) by Christ, but has much wider pinnae and setiferous sporangia and elongate aerophores; it is near S. magnus, but smaller.