Volume 3 > Part 4 > Year 1989 > Page 499 > Polypodiaceae > Pyrrosia

7. Pyrrosia nuda (Giesenh.) Chingwfo-0001125751

Ching, Bull. Chin. Bot. Soc. 1: 70. 1935; Tardieu. & C.Chr. in Fl. Indo-Chine 7(2): 514. 1941; Tagawa & K.Iwats., Acta Phytotax. Geobot. 23: 110. 1968.— Niphobolus nudus Giesenh., Nipholobus: 149. 1901. Fig. 50. 3.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Very close to the preceding species, differs in: stipes short, up to 1 cm long, densely hairy; fronds hardly dimorphic, rachis raised beneath, stramineous to pale green, or rarely dark; rhizorne-scales densely downy hairly.

Thailand : NORTHERN: Tak (Ban Musoe, Khao Phra Wo).

Distribution : Himalayas (type from Assam), Burma, SW China (Yunnan), Vietnam, Laos.

Ecology : On mossy tree-trunks in dense forests at about 900 m alt.

Notes: It is already stated by Giesenhagen and by Ching that the above two species are similar to each other and are often hardly distinguished without the information of their geographical ranges. Our collection seems to stand as an intermediate between the two typical forms. Sterile fronds are broader than the Indian plants and thus seemingly more or less dimorphic.

E-version notes : For more details see Ferns of Thailand, Laos and Cambodia.