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Forma typica : Folia supra laete viridia, subtus pallide viridia; 

 spicae virides ; macrosporae flavido-albidae, minute verruculosae. 

 ^ Var. aeiieifolia: Folia supra aenea, subtus olivaceae; 



spicae aeneae; macrosporae atrofuscae, minute verruculosae vel 

 ruguloso-verruculosae (juvéniles saepe albidae). 



The species bears the name of Mrs. K. v. Alderwerelt v. 

 Rosenburgh. 



Sumatra. 



