Heterogonium alderwereltii

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Heterogonium alderwereltii


Asia-Tropical: Malaya (Peninsular Malaysia present), N Sumatra present, Peninsular Thailand present
Peninsular Thailand; Malesia: N Sumatra, Malay Peninsula.


This species always grows in association with H. pinnatum and may be of hybrid origin, possibly H. pinnatum × H. sagenioides, in which case it would be a triploid. Experimental evidence is desirable. The type is smaller than the Peninsular specimens from which the above description is drawn but otherwise agrees with them.


Holttum 1955: p. 522. – In: Revis. Fl. Malaya: f. 305
Holttum 1975 – In: Kalikasan: 229