Notes relating to the Flora of Bhutan: XIX. Kobresia (Cyperaceae)

Abstract

The following new taxa, combinations and synonymy in the genus Kobresia from E Himalaya and SW China are proposed: K. pseuduncinoides Noltie sp. nov.; K. woodii Noltie sp. nov.; K. esenbeckii (Kunth) Noltie comb. nov. of which K. seticulmis Boeckeler, K. hookeri Boeckeler, K. angusta C.B. Clarke and the illegitimate K. trinervis Boeckeler become synonyms; K. esenbeckii var. fissiglumis (C.B. Clarke) Noltie comb. nov.; K. prattii C.B. Clarke and K. harrysmithü Kük. are reduced to synonymy of K. vidua (Boott ex C.B. Clarke) Kük.; K. williamsii is reduced to synonymy of K. gammiei; K. curvata is reduced to synonymy of K. fragilis; K. stiebrilziana is reported new to Bhutan and Sikkim and K. curticeps and K. gammiei new to Bhutan. Notes on K. nepalensis, K. vaginosa, K. vidua, K. gammiei and K. cercostachys are given. Observations on apparent dioecy and distribution of sex within the species K. esenbeckii, K. vidua, K. vaginosa and K. curticeps are reported.