Heterogonium giganteum
Content
Distribution
Asia-Tropical: Maluku (Maluku present), western Malesia present
Malesia: Western, Moluccas.Western Malesia
Notes
I see no distinction in other characters between fronds with indusiate and exindusiate sori. I have seen distinctly crenate lobes of suprabasal pinnae only in Blume’s type collection. One collection from limestone in Sarawak (Paul & Erwin S 27482) has somewhat elongate indusiate sori, several pairs of stalked pinnae and a bud on the upper surface of the costa of one of them; it is perhaps a hybrid. Of six known collections from the Malay Peninsula only one is indusiate. A widely distributed species but nowhere abundant.
Citation
Alderw. 1908: Malayan Ferns: 173
Hook. 1862 – In: Sp. Fil.: 50
C. Chr. 1905: Index Filic.: 75
Alderw. 1908: Malayan Ferns: 172
Holttum 1955: p. 525. – In: Revis. FL. Malaya: f. 308
Holttum 1975 – In: Kalikasan: 226
Backer & Posth. 1929: Varenfl. Java: 72
Racib. 1898: Pteridop. Buitenzorg: 193