Dryopteris nushanensis Li Bing Zhang, 2012

Zhang, Li-Bing, 2012, Reducing the fern genus Dryopsis to Dryopteris and the systematics and nomenclature of Dryopteris subgenus Erythrovariae section Dryopsis (Dryopteridaceae), Phytotaxa 71 (1), pp. 17-27 : 24

14. Dryopteris nushanensis Li Bing Zhang , nom. nov.

Replaced synonym:— Ctenitis silaensis Ching (1941: 68)

Type: CHINA. Yunnan: Sila Pass in Mekong-Salween Divide , 3000 m, K. M. Feng 5564 (lectotype PE-00050284!, isolectotype PE-00050285! here designated) .

Homotypic synonym:— Dryopsis silaensis (Ching) Holttum & Edwards (1986: 194) .

Note: — There are two specimens of the collection K. M. Feng 5564 at PE and both were apparently in possession of Ching when he decribed Ctenitis silaensis . One of them is designated as the lectotype .

Heterotypic synonyms: — Ctenitis dentisora Ching (1941: 67) , Dryopsis dentisora (Ching) Holttum & Edwards (1986: 194) . Type: CHINA. Yunnan: Dêqin, Sila Pass, West bank of Mekong river, 3000 m, 16 July 1940, K. M. Feng 5510 (holotype PE-00050282!, isotypes PE-00050281!, PE-00050283!).

When this species is transferred to Dryopteris , the original epithet silaensis is blocked by Dryopteris silaensis Ching (1941: 65) .

This species was recognized by Dong & Lu (2001) but is synonymized by Dong & Christenhusz (in press) with Dryopteris nidus (Baker) Li Bing Zhang.

This species occurs in China (northwestern Yunnan).

15. Dryopteris obtusiloba (Baker) Kuntze (1891: 813)

Basionym:— Nephrodium obtusilobum Baker (1867: 284) .

Type : SRI LANKA. 1850, G. H. K. Thwaites CP3142 (holotype K, isotypes BM-001048519!, P-00642754!, P- 00642755!, SING! fragment of isotype) .

Homotypic synonyms:— Lastrea obtusiloba (Baker) Beddome (1868 : t. 296), non (Fée) T. Moore (1858: 98), Dryopteris zeylanica Alderwerelt van Rosenburgh (1908: 203) . nom. superfl., Ctenitis obtusiloba (Baker) Ching (1938: 296) , Ctenitis ferruginea var. obtusiloba (Baker) Sledge (1972: 409) ., Dryopsis obtusiloba (Baker) Holttum & Edwards (1986: 201) .

Note:—There is a later homonym: Dryopteris obtusiloba (Desv.) Christensen (1905: 280) , nom. illeg., which is Thelypteris bergiana (Schltdl.) Tardieu (1958: 277)) .

Dryopteris obtusiloba occurs in Sri Lanka.