Temochloa elegans var. glabra N. H. Xia, Z. Y. Cai, Y. Y. Zhang & J. B. Ni 2024, var. nov.

Temochloa elegans var. glabra N. H. Xia, Z. Y. Cai, Y. Y. Zhang & J. B. Ni var. nov. Diagnosis. This variety can be differentiated from Temochloa elegans var. elegans in its glabrous foliage leaf sheaths and glabrous foliage leaf ligules. Type. Vietnam, Ha Giang, Minh Ngoc Village, limestone, 22 ° 43 ' 19 " N, 105 ° 11 ' 36 " E, 210 m elev., 24 May 2018; N. H. Xia et al. 2018 VNB 040 (holotype: IBSC!, isotype: VNMN!). Etymology. The specific epithet refers to its glabrous foliage leaf sheaths and glabrous foliage leaf ligules. Chinese name. 光雅竹 (guāng yǎ zhú). Distribution and habitat. This species occurs in the limestone area of northeast Vietnam, at elevations of 140– 210 m. Conservation status. Up to now, T. elegans var. glabra is known from only one location in Vietnam. Less than 10 clumps were found. Due to the insufficient field survey, it should probably be categorised as Data Deficient (DD) (IUCN Standards and Petitions Committee 2022). Additional specimens examined (paratypes). Vietnam, Ha Giang, Minh Ngoc Village, limestone, 22 ° 43 ' 48 " N, 105 ° 12 ' 25 " E, 140 m elev., 2018 N. H. Xia et al. 2018 VNB 032 (IBSC!, VNMN!)