On the taxonomic identity and lectotypification of Impatiens uncipetala C.B.Clarke ex Hook.f.

Impatiens yui S.H.Huang from NW Yunnan is treated as a synonym of I. uncipetala C.B.Clarke ex Hook.f., known from eastern Himalaya of Nepal, Sikkim, West Bengal and Arunachal Pradesh . The species epithet of the latter is misleading because observations of living specimens do not support the hook-like shape for the appendage of the upper lateral petal. The name I. uncipetala C.B.Clarke ex Hook.f. is lectotypified herewith.