Leptochilus flexilobus (Christ) 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 : 174

publication ID	https://doi.org/ 10.11646/phytotaxa.374.2.10
persistent identifier	https://treatment.plazi.org/id/039F87B9-4320-FFED-FF6D-5475B03D7738
treatment provided by	Felipe
scientific name	Leptochilus flexilobus (Christ) Liang Zhang & Li Bing Zhang
status	comb. nov.

Treatment

Leptochilus flexilobus (Christ) Liang Zhang & Li Bing Zhang View in CoL , comb. nov.

Basionym: Polypodium flexilobum Christ (1904: 107) View in CoL .

≡ Colysis elliptica var. flexiloba (Christ) L. Shi & X.C. Zhang (1999: 74) View in CoL , C. flexiloba (Christ) Ching (1933: 330) View in CoL , Leptochilus ellipticus var. flexilobus (Christ) X. C. Zhang (2012: 652) View in CoL .

Type:— CHINA. Yunnan Province: Mengzhi County, Henry 10769 A (holotype K-000959637!).

Notes:—This species was often treated as a synonym or a variety of Leptochilus ellipticus (e.g., Nooteboom 1997, Cheng et al. 2005, Zhang & Nooteboom 2013). However, our reconstructed phylogeny indicated that this species is more closely related to L. dissimilialatum and L. digitatus (1997: 282) than to L. ellipticus ( Zhang et al., 2018) . Leptochilus flexilobus is distinguished in the genus by having rachis broadly winged and margins of pinnae often undulate-repand. It might occur in southern China and northern Vietnam only.

The species is apparently a member of the L. ellipticus clade ( Zhang et al. 2018). In addition to L. dissimilialatus , the species is also similar to some species with entire to irregularly lobed leaves, e.g., L. hemitomus , L. wrightii .