© 2015 Royal Botanic Gardens and Domain Trust plantnet.rbgsyd.nsw.gov.au/Telopea • escholarship.usyd.edu.au/journals/index.php/TEL • ISSN 0312-9764 (Print) • ISSN 2200-4025 (Online) T ELOPEA Journal of Plant Systematics Volume 18: 383–387 Publication date: 22 September 2015 dx.doi.org/10.7751/telopea9100 Impatiens parkinsonii C.E.C. Fisch. (Balsaminaceae), a new addition to flora of India and notes on its typification Rajib Gogoi 1,3 , Nripemo Odyuo 2 and Ranjit Daimary 2 1 Central National Herbarium, Botanical Survey of India, P.O. Botanic Garden, Howrah, India 2 Botanical Survey of India, Eastern Regional Centre, Shillong–793003, Meghalaya, India 3 Author for correspondence: rajibdzuko@gmail.com Abstract Impatiens parkinsonii C.E.C.Fisch. (Balsaminaceae) is reported as new addition to the flora of India. It was earlier only known from North Myanmar. As there was no holotype assigned for the species, a lectotype is designated here. Introduction Impatiens parkinsonii C.E.C.Fisch. (Balsaminaceae) was described by Cecil E.C. Fischer on the basis of a collection made by C. E. Parkinson from North Myanmar in 1925. Parkinson was a Forest Botanist of Burma (Myanmar) and the species was named after its collector. The specific epithet of this species was named in his honour (Fischer 1926). While describing the species, Fischer assigned C.E. Parkinson 407 as the type; however, this collection consists of two sheets, each one a syntype. Therefore, lectotypification of the name I. parkinsonii C.E.C.Fisch. is required. During a recent plant exploration tour by two of the authors (N.O. and R.D.) to Mon district of Nagaland, North-eastern India under Botanical Survey of India’s annual action plan project ‘Flora of Eastern Nagaland’, a few species of Impatiens were collected. After critical examination and subsequent literature study accompanied by examination of herbarium samples deposited at K, one plant collected during this survey was identified as Impatiens parkinsonii, being discovered for the first time from India (Hooker 1874, 1905; Toppin 1920, Fischer 1926, Grey-Wilson 1989, 1991; Vivekananthan et al. 1997; Huang 2006; Pusalkar and Singh 2010; Dessai and Janarthanam 2011; Bhaskar 2012; Gogoi and Borah 2013a, 2013b, 2014; Gogoi et al. 2013, Borah et. al. 2015). Until now, this species was only known from Namti Chaung Feeder, Myitkyina district, North Myanmar (North Burma) (Fischer 1926). A detailed description of this poorly known species is provided, together with coloured images, to enable field botanists, foresters, environmentalists, herbalists, and others. to identify the species in the field. A lectotype is designated from C.E. Parkinson’s original collection Impatiens parkinsonii C.E.C. Fisch. Bulletin Miscellaneous Information Kew 1926: 467 (1926). Lectotype (designated here): Myanmar, Myitkyina district, Namti Chaung Feeder, 11 Dec 1925, C.E. Parkinson 407 (K000694778!); isolectotype (K000694779!)