Elaphoglossum melanostictum

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Elaphoglossum melanostictum

Distribution

Asia-Tropical: Borneo present; Jawa (Jawa present); Malaya (Peninsular Malaysia present); Philippines (Philippines present); Sumatera (Sumatera present), Basilan present, Mindanao present, Negros present, Peninsular Thailand present, Samar present
Peninsular Thailand and Malesia: Sumatra, Malay Peninsula, Java, Borneo, Philippines (Basilan, Samar, Negros, Mindanao).

Notes

E. basilanicum was described from rather small sterile plants, but in shape of frond and scales agrees closely with other specimens. The species Acrostichum lessonii was based in part on specimens collected by Lesson on Vanicoro (Santa Cruz I.) and partly on a specimen from Sumatra, coll. Korthals. The latter alone has a fertile frond, and its sterile ones are much larger than those from Vanicoro. The description agrees with the Sumatran plant, which should thus be the type; the Vanicoro plant is different and I cannot identify it.
A collection of Grabowsky (s.n. Jan. 1882; B, BM) from SE. Borneo, is rather intermediate both in scales and frond-form between E. melanostictum and E. norrisii; sterile fronds to 20 by 3 cm, fertile with long stipe as melanostictum but only 1 cm wide and very long-decurrent. I regard these specimens as small E. melanostictum.

Citation

v.A.v.R. 1908: Handb.: 714
v.A.v.R. 1908: Handb.: 716
Backer & Posth. 1939: Varenfl. Java: 249
Copel. 1960: Fern Fl. Philip.: 280
Moore 1917: Handb.: 427
v.A.v.R. 1917: Handb.: 425
Holttum 1954: p. 456. – In: Rev. Fl. Mal.: f. 266