Botany Letters ( IF 1.5 ) Pub Date : 2020-12-27 , DOI: 10.1080/23818107.2020.1857834 Rajib Gogoi 1 , Norbu Sherpa 1 , Souravjyoti Borah 2
ABSTRACT
The taxonomic identity of Impatiens laxiflora Edgew. is assessed historically and the name I. leggei Pusalkar & D.K.Singh is found conspecific and synonymized. The species commonly treated in China as I. laxiflora Edgew. is studied and its true identity ascertained as I. desmantha Hook.f., with two new synonyms: I. gracilipes Hook.f. and I. recticalcarata S.Akiyama. All three other closely allied species of I. laxiflora Edgew. (I. crassicaudex Hook.f., I. infirma Hook.f. and I. sunkoshiensis S.Akiyama, H.Ohba & Wakab.) are also studied and discussed. We provide updated descriptions with illustrations for all the five species, an identification key to the species, and designate lectotypes for the four names I. laxiflora, I. desmantha, I. crassicaudex and I. infirma.
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