Pyrrosia albicans

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Pyrrosia albicans

Description

Stellate hairs dimorphic, forming a dense mat, whitish to brown, the straight upper rays acicular.

Distribution

Asia-Tropical: Jawa (Jawa present); Lesser Sunda Is. present; Sumatera (Sumatera present)
Malesia: Sumatra, Java, Lesser Sunda Islands.

Morphology

A form occurring on Flores has narrower fronds than the typical form, in the most extreme case with only a single row of large sori between costa and margin.

Anatomy

Anatomy:

Citation

Racib., Pterid. Buitenzorg. 1898: 101
Alderw., Malayan Ferns. 1908: 688
Baker, Syn. Fil. 1867: 352
Giesenh., Niphobolus. 1901: 189
Blume, Fl. Javae Fil. 1829: pl. 25
Alderw., Malayan Ferns. 1917: 414
Blume, Fl. Javae Fil. 1829: pl. 26
Hovenkamp - in Leiden Bot. Ser. 1986: 153
Backer & Posth., Varenfl. Java. 1939: 242
Giesenh., Niphobolus. 1901: 185