Lectotypification of Three Names in the Genus Henckelia Spreng

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Phytotaxa 268 (1): 080–084 ISSN 1179-3155 (print edition) http://www.mapress.com/j/pt/ PHYTOTAXA Copyright © 2016 Magnolia Press Correspondence ISSN 1179-3163 (online edition) http://dx.doi.org/10.11646/phytotaxa.268.1.6

Lectotypification of three names in the genus Henckelia Spreng. (Gesneriaceae)

A.P. JANEESHA & SANTHOSH NAMPY* Department of Botany, University of Calicut, Kerala – 673 635, India; email: [email protected], [email protected] *author for correspondence

The genus Henckelia Sprengel (1817: 402) was re-established by Weber & Burtt (1997), with approximately 180 species, to include most of the Malesian, Sri Lankan and south Indian species of Didymocarpus Wallich (1819: 378). Weber et al. (2011) and Middleton et al. (2013) based on molecular data redefined the genus and included only 56 species. Subsequently three more species were added to the genus, H. pradeepiana Nampy, Manudev & Weber in Manudev et al. (2012: 119), H. sivagiriensis (Rajakumar et al. 2009: 481) Kumar (2014: 149) and H. bracteata Janeesha & Nampy (2015: 53) while Middleton et al. (2015) transferred H. smitinandii ( Burtt 2001: 89) Middleton & Möller in Weber et al. (2011: 776) to the genus Chayamaritia Middleton & Möller (2015: 1961). At present the genus includes 58 species distributed in Sri Lanka, southern and northeastern India, Nepal, Bhutan, southern China, northern Vietnam, northern Laos and northern Thailand. Vitek et al. (2000) quoted the types of many names in Henckelia. As part of the ongoing taxonomic revision on the genus Henckelia in India, three names H. lyrata (Wight 1848: t. 1350) Weber & Burtt (1997: 349), H. meeboldii (Smith & Ramaswami 1914: 43) Weber & Burtt (1997: 349) and H. ovalifolia (Wight 1848: t. 1351) Weber & Burtt (1997: 351) resulted not yet typified. The lectotypes are designated here according to Art. 9.2 of the ICN (McNeill et al. 2012).

Typification of names Henckelia lyrata (Wight 1848: t. 1350) Weber & Burtt (1997: 349) ≡ Didymocarpus lyratus Wight (1848: 10, t. 1350). Type (lectotype, designated here):—INDIA, Tamil Nadu, Courtallum, September 1835. 559, Wight 2674 (E barcode E00155173!, isolectotypes E barcodes E00155174!, E00155175!), Fig. 1.

Notes:—Henckelia lyrata was originally described as Didymocarpus lyratus by Robert Wight (1848) from South India with the citation “Courtallum, in moist shady places, flowering August and September”. Vitek et al. (2000) cited the type as “India, Courtallum, IX. 1835. Wight 2354 (E, K); s. dat. Wight 559 (K, L)”. Noltie (2005: 275) also indicated three isosyntypes at E. While searching for Wight’s original material in various herbaria, we traced six sheets, three each at E (barcodes E00155173!, E00155174!, E00155175!) and K (barcodes K000858185!, K000858186!, K000858187!) and none at L (R. Bijmoer pers. comm.), as indicated by Vitek et al. (2000). The sheets K000858185 and K000858186 have the Herb. Wight label, numbered 2354 while the third sheet K000858187 has an annotation “Didymocarpus lyrata, Ic. t. 1350, Courtallum 559”. All the three sheets at E have Herb. Wight label numbered 2674, but there is no material kept in E with the number 2354, as indicated by Vitek et al. (2000). Among the material traced, only the sheet “Wight 2674” kept in E (barcode E00155173) has drawings of the dissected floral parts as depicted in the iconography. It matches exactly with the protologue and is designated here as lectotype.

Henckelia meeboldii (Smith & Ramaswami 1914: 43) Weber & Burtt (1997: 349) ≡ Didymocarpus meeboldii Smith & Ramaswami in Smith (1914: 43). Type (lectotype, designated here):—INDIA, Kerala, Peermade Ghat, Meebold 12851 (CAL barcode CAL0000019179!, isolectotypes CAL barcodes CAL0000019180!, CAL0000019181!, CAL0000019182!, K barcode K000858198!, E barcode E00155177!), Figs 2 & 3.

Notes:—Henckelia meeboldii was first described as Didymocarpus meeboldii by Smith and Ramaswami in Smith (1914: 43) and in the protologue cited: “Didymocarpus meeboldii, Southern India—at Peermade Ghat, No. 12851 Meebold”. Vitek

80 Accepted by Fabrizio Bartolucci: 27 Jun. 2016; published: 15 Jul. 2016 Licensed under a Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0 et al. (2000) cited the type as “South India, Peermade Ghat, 1910-1911, Meebold 12851 (K & E)”, without designating a lectotype. The search for the type specimens in various herbaria revealed that in addition to the specimens cited by Vitek et al. (2000) kept in K (barcode K000858198) and E (E00155177), there are four more sheets in CAL (barcodes CAL0000019179!, CAL0000019180!, CAL0000019181!, CAL0000019182!). Among the material traced, only the sheets kept in CAL (barcodes CAL0000019179 and CAL0000019180) have drawings of dissected floral parts and annotations by the authors. The sheet CAL0000019179 matches exactly with the protologue and is designated here as the lectotype.

FIGURE 1: Lectotype of Henckelia lyrata (Wight) A.Weber & B.L.Burtt. © The Board of Trustees for the Royal Botanic Garden, Edinburgh. Reproduced with permission.

Henckelia Spreng. (Gesneriaceae) Phytotaxa 268 (1) © 2016 Magnolia Press • 81 FIGURE 2: Lectotype of Henckelia meeboldii (W.W. Sm. & Ramaswami) A.Weber & B.L.Burtt. © Central National Herbarium, Kolkata. Reproduced with permission.

FIGURE 3: Drawings, dissected floral parts and annotation of H. meeboldii by Ramaswami on sheet CAL0000019179 (pocket no. 332594, barcode CAL0000027098). © Central National Herbarium, Kolkata. Reproduced with permission.

82 • Phytotaxa 268 (1) © 2016 Magnolia Press JANEESHA & NAMPY FIGURE 4: Lectotype of Henckelia ovalifolia (Wight) A.Weber & B.L.Burtt. © The Board of Trustees of the Royal Botanic Garden, Edinburgh. Reproduced with permission.

Henckelia Spreng. (Gesneriaceae) Phytotaxa 268 (1) © 2016 Magnolia Press • 83 Henckelia ovalifolia (Wight 1848: t. 1351) Weber & Burtt (1997: 351) ≡ Didymocarpus ovalifolius Wight (1848:10, t. 1351). Type (lectotype, designated here):—INDIA, Tamil Nadu, Courtallum, August 1835. 558, Wight 2673 (E barcode E00155178!, isolectotypes K barcode K000858199!, E barcode E00179262!), Fig. 4.

Notes:—Wight (1848) described Didymocarpus ovalifolius based on materials collected from Courtallum (Peninsula India Orientalis). Weber and Burtt (1997: 351) transferred this species to the genus Henckelia as H. ovalifolia. No mentioning of a typification is available except Vitek et al. (2000) and Noltie (2005: 276). Vitek et al. (2000) cited only the syntypes: “India, in Peninsula maderaspatana, Courtallum, Wight 558 (E, K), Wight 2353 (K [2])”. According to Noltie (2005), two isosyntypes are available at E “two sheets with HWP label and annotated with the name by Arnott, collected Courtallum August 1835, with the numbers WC 2673 and 1835. 558. one ex herb. Arnott, one from the Glasgow 1903 distribution”. Thus, no one has selected a type for this species. After an exhaustive search, three sheets were found, one at K and two at E, whereas the specimen “Wight 2353” cited by Vitek et al. (2000) was not found anywhere. Among the material traced, the sheet kept in E (barcode E00155178) with drawings by the author and Herb. Wight label is designated here as lectotype.

Acknowledgements The authors are grateful to Dr. John E. Thoppil (Head, Department of Botany, University of Calicut) for facilities, the Curators of K, E, L and CAL for permission to use the digital images of type specimens and Dr. Henry J. Noltie (RBGE, UK) for clarifying the doubts on the numbering of Wight specimens. One of us (JAP) is grateful to University Grant Commission, New Delhi for Fellowship (MANF/2012-13/MUS/KER/14307).

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