Lectotypification of the name Allium prattii (Amaryllidaceae)

Abstract

The genus Allium L. (Amaryllidaceae), comprising about 987 species, is one of the largest genera in monocotyledonous angiosperms distributed in the northern hemisphere (POWO, 2020). In India, over 36 species of Allium are reported (Karthikeyan et al., 1989), of which 32 occur in the Himalaya (Sinha et al., 2019). During the floristic study of the Sikkim Himalaya, Allium prattii C.H.Wright was collected from Dzongri area of West Sikkim. A detailed survey of the literature (Wright, 1903; Stearn, 1994; Dasgupta, 2006) revealed that a proper type was not designated for the name. After studying the type specimens at BM, CAL, G, K, MPU and P (Thiers, continuously updated) and comparison with the protologue, the lectotype is selected in accordance with the provisions in Art. 9.3 of the ICN (Turland et al., 2018).