404 Lectotypification of Boschniakia himalaica Lectotypification of Boschniakia himalaica, the basionym of Xylanche himalaica (Orobanchaceae) Kumar A. 1* & O.N. Maurya 2 1 Central National Herbarium, Botanical Survey of India, P.O. Botanic Garden, Howrah, West Bengal – 711 103, India. 2 Botanical Survey of India, CGO Complex, Salt Lake City, Kolkata, West Bengal – 700 064, India. * E-mail: anand_kum234@rediffmail.com RHEEDEA Journal of the Indian Association for Angiosperm Taxonomy Vol. 30(2): 270–277 (2020) ISSN: 0971-2313 (Print edition) ISSN: 2582-2438 (Online edition) https://dx.doi.org/10.22244/rheedea.2020.30.02.02 Received: 10.12.2019; Revised & Accepted: 01.09.2020 Published Online: 30.09.2020 Abstract: A lectotype is designated here for the name Boschniakia himalaica Hook.f. & Thomson, the basionym of Xylanche himalaica (Hook.f. & Thomson) Beck. Keywords: Boschniakia himalaica, Lectotype. Introduction Beck (1890) described the genus Xylanche Beck based on Boschniakia himalaica Hook.f. & Thomson which was segregated from Boschniakia C.A.Mey. ex Bong. in having tricarpellate pistils. Phylogenetic evidence (Wolfe et al., 2005; Bennett & Mathews, 2006; Park et al., 2008) also supported segregation of Xylanche from Boschniakia . However, the molecular work by McNeal et al. (2013) did not support segregation of Xylanche and they used B. himalaica and B. rossica (Cham. & Schltdl.) B.Fedtsch. under genus Boschniakia. However, Piwowarczyk (2015) carried out seed morphological studies of Boschniakia s.l. which supported a segregation of Xylanche from Boschniakia. Xylanche is represented by the sole species X. himalaica (Hook.f. & Thomson) Beck distributed mostly in temperate and subalpine Himalayas, to altitudes over 4000 m (Nepal, Bhutan, India, and China) with disjunct distribution in Taiwan (Piwowarczyk, 2015). In India, the species is restricted to Arunachal Pradesh, Meghalaya, Sikkim and Uttarakhand (Anilkumar, 2000). While working on the genus Boschniakia for the Flora of India, the authors found that the name Boschniakia himalaica Hook.f. & Thomson appears to be as yet untypified (Smith, 1933; Zhang, 1987; Anilkumar, 2000; Yu, 2013; Collins et al., 2019). After critical studies of type specimens and comparison with the protologue, a lectotypification is presented here in accordance with the Art. 7.11 of the Shenzhen Code (Turland et al., 2018). Typification Boschniakia himalaica Hook.f. & Thomson in Hook.f., Fl. Brit. India 4: 327. 1884 (= Xylanche himalaica (Hook.f. & Thomson) Beck, Biblioth. Bot. 4(19): 58. 1890). Lectotype (designated here): INDIA, Sikkim, Lachen valley, 12000 ft., associated with roots of Rhododendron sp., s.d., J.D. Hooker s.n. (K [K000938934 digital image!]). Residual syntypes: INDIA, Sikkim, 10–12000 ft., s.d., J.D. Hooker s.n. (CAL [CAL0000019107!, CAL0000019108!], E [E00273644 digital image!], GH [GH00914299 digital image!], K [K000938933 digital image!], M [M0185512 digital image!], MPU [MPU021194 digital image!], P [P02968827, P02968828 digital images!], S [S11-7045 digital images!]); Singaleleh [Singalila], 12000 ft., “on roots of Rhododendron”, 08.10.1870, C.B. Clarke 13424 (CAL [CAL0000019106!]); Jongri, 13000 ft., 15.10.1875, C.B. Clarke 25743 (K [K001392680 digital image!]); C.B. Clarke 25812 (K [K001392681 digital image!]). Uttarakhand, Kumaon, Dwali, Vol. 30(3): 404–406 (2020) ISSN: 0971-2313 (Print edition) ISSN: 2582-2438 (Online edition) https://dx.doi.org/10.22244/rheedea.2020.30.03.08