Henckelia bracteata, a new species ofGesneriaceaefrom S Western Ghats, India, and lectotypification ofDidymocarpus humboldtianus(H. humboldtiana)

Two new species of Henckelia (Gesneriaceae) from Southeastern Yunnan, China

“…We believe that the habitat driven speciation is worthy of further investigation. Although a large number of new species of Gesneriaceae have been reported from China in recent years, until now, no new members of Henckelia have been published after the revision (Weber et al 2011) from China, and a few new species of the genus have been described from India, Sri Lanka, Myanmar and Thailand (Manudev et al 2012; Janeesha and Nampy 2015; Ranasinhe et al 2016; Krishna and Lakshminarasimhan 2018; Sirimongkol et al 2019). The two new species in this paper were all discovered in Dawei Mountain area, a locality with several different vegetation types and abundant plant diversity; therefore, we will continue to pay more attention to the Gesneriaceae species diversity in this area and adjacent region.…”

“…Henckelia s.l. consists of more than 60 species, mainly distributed across south and east Asia and the adjacent Himalayan regions (Weber et al 2011; Manudev et al 2012; Janeesha and Nampy 2015; Sinha and Datta 2016; Ranasinhe et al 2016; Krishna and Lakshminarasimhan 2018; Sirimongkol et al 2019). Southwest China harbors a high diversity of Henckelia , and more than 20 species of Henckelia , which were originally described under the names of Hemiboeopsis W.T.…”

Five new species of Henckelia (Gesneriaceae) from Myanmar and Thailand

“…Leaves symmetrically cordate or orbicular, 6.2-16 by 6-14 cm, herbaceous, base cordate and sometimes amplexicaul, apex obtuse or rounded, margin serrate, upper surface hairy, lower surface glabrous, lateral veins 4-10 on each side of midrib, only the first lateral vein ascending perpendicular to the midrib; usually two pairs of opposite leaves present, but some reduced such that there are only 1 or 2, rarely 3 or 4, full-sized leaves, sessile. Inflorescence terminal, single or compound cymes, rarely axillary, up to 2 Wood (1974) and Manudev et al (2012) inflorescences, 3-9-flowered; peduncles terete, light green, 2.3-5 by 0.2-0.3 cm, glandular hairs; bracts 2, free, sessile or linear, 0.5-7 by 1-15 mm, apex acute, hairy, margin ciliate. Pedicels terete, light green, 0.7-2 by 0.1 cm, with multicellular and glandular hairs.…”

“…The genus is now morphologically fairly diverse and formerly includes two species which develop only a single leaf: Henckelia monophylla (C.B.Clarke) D.J. Middleton & Mich.Möller from central Arunachal Pradesh, India (Clarke, 1884;Wood, 1974), and H. pradeepiana Nampy, Manudev & A.Weber, from the southern Western Ghats, India (Manudev et al, 2012). Recent field surveys and the examination of herbarium materials have revealed additional new species of Henckelia which develop only one large leaf.…”

A taxonomic revision of Henckelia (Gesneriaceae) in South India with a new species, one new combination and seven lectotypifications

“…Burtt. The genus under its current definition is distributed in Sri Lanka, India, Myanmar, Nepal, Bhutan, southern China, northern Vietnam, northern Laos, and northern Thailand. A few species were recently described bringing the total number to c. 70 species worldwide (Manudev et al, 2012;Middleton et al, 2013;Kumar, 2014;Janeesha & Nampy, 2015;Ranasinghe et al, 2016;Krishna & Lakshminarasimhan, 2018;Borah et al, 2019;Cai et al, 2019;Sirimongkol et al, 2019;Yang et al, 2019;Kanthraj et al, this issue). It is the eighth largest genus in tribe Trichosporeae and tenth largest in subfamily Didymocarpoideae (Möller & Clark, 2013).…”