Leptochilus dissimilialatus (Bonap.) Liang Zhang & Li Bing Zhang, 2018

Zhang, Liang, Guo, Lei & Zhang, Li-Bing, 2018, New combinations in the fern genus Leptochilus (Polypodiaceae), Phytotaxa 374 (2), pp. 172-176 : 173

publication ID	https://doi.org/ 10.11646/phytotaxa.374.2.10
persistent identifier	https://treatment.plazi.org/id/039F87B9-4323-FFEE-FF6D-5625B6D87130
treatment provided by	Felipe
scientific name	Leptochilus dissimilialatus (Bonap.) Liang Zhang & Li Bing Zhang
status	comb. nov.

Treatment

Leptochilus dissimilialatus (Bonap.) Liang Zhang & Li Bing Zhang View in CoL , comb. nov.

Basionym: Polypodium dissimilialatum Bonaparte (1923: 155) View in CoL .

≡ Colysis dissimilialata (Bonap.) Ching (1933: 330) View in CoL .

Type :— VIETNAM. Lào Cai Province: September 1919, Eberhardt 5097 (lectotype P-00709503!, isolectotype BM-001038414!; here designated!) .

Notes:—When Polypodium dissimilialatum was published, both Eberhardt 5097 and Eberhardt 5115 were cited without designating type specimen. This species is similar to Leptochilus ellipticus (Thunberg ex Murray 1784: 935) Nooteboom (1997: 283) , but differs from the latter in having leaves distinct dimorphic, fertile leaves with lobes of more than 10 pairs, lobes narrow and long with large space each other. Colysis morsei ( Ching 1931: 17) Ching (1933: 330) is endemic to southern Guangxi, China, which may be conspecific with L. dissimilialatum . This rare fern occurs in limestone mountains in northern Vietnam.

Our reconstructed phylogeny resolved three samples of Leptochilus dissimilialatus as sister to a clade formed by four samples of L. flexilobus , but weakly supported. Given the morphological difference between L. dissimilialatum and L. flexilobus mentioned above, we recognize both of the species.