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Issue: Vol. 338 No. 1: 9 February 2018
Type: Article
Published: 2018-02-09
DOI: 10.11646/phytotaxa.338.1.5
Page range: 63–74
Abstract views: 28
PDF downloaded: 31

Three new species of Impatiens (Balsaminaceae) from Myanmar

Naturalis Biodiversity Center, PO Box 9517, 2300 RA, Leiden, The Netherlands. Leiden University, PO Box 9517, 2300 RA, Leiden, The Netherlands.
Queen Sirikit Botanic Garden, The Botanical Garden Organization, Chiang Mai, Thailand.
Naturalis Biodiversity Center, PO Box 9517, 2300 RA, Leiden, The Netherlands. School of Life Sciences, University of KwaZulu–Natal, P. Bag X01, 3209, Scottsville, South Africa.
Naturalis Biodiversity Center, PO Box 9517, 2300 RA, Leiden, The Netherlands. Leiden University, PO Box 9517, 2300 RA, Leiden, The Netherlands.
Myanmar Floriculturist Association, 42A, Inya Myaing Road, Yangon, Myanmar.
Botanic Garden Meise, Nieuwelaan 38, BE–1860, Meise, Belgium.
Impatiens Myanmar Southeast Asia taxonomy Uniflorae Eudicots

Abstract

Three new species of Impatiens (Balsaminaceae) from Myanmar are here described: I. decurva Ruchis. & S.B. Janssens, I. hartnolliae Hook. f. ex Ruchis. & Suksathan, and I. oblongata Ruchis. &Van der Niet. The 5-lobed short fusiform fruit of all three species suggests that they are members of subgen. Impatiens sect. Uniflorae Hook. f. & Thomson. For I. decurva and I. oblongata, subgenus membership was corroborated by phylogenetic analyses of a combined dataset of nuclear ITS and plastid atpB-rbcL intergenic spacer DNA sequences. This was not possible for I. hartnolliae, which is only known from a single herbarium specimen.