Didymocarpus griffithii Wight

Akhil, Mannar Kandy, Möller, Michael & Nampy, Santhosh, 2022, Lectotypifications of four names in the family Gesneriaceae, Adansonia (3) 44 (3), pp. 15-21 : 16

Didymocarpus griffithii Wight

Illustrations of Indian Botany 2: 182, pl. 159 ( Wight 1850). — Dichrotrichum griffithii (Wight) C.B.Clarke , Commelynaceae et Cyrtandraceae Bengalenses: 78-79 ( Clarke 1874). — Loxostigma griffithii (Wight) C.B.Clarke , in A.DC. & C.DC., Monographiae Phanerogamarum 5: 60 ( Candolle & Candolle 1883).

— Type: India. Meghalaya, Khasya [Khassya, now Khasi ], s.d., Griffith W. s.n. (lecto-, K [ K000831968 ]! first step designated by Vitek et al. 2000; second step here designated [ Fig.2 ] ; isolecto-, BM [ BM000997689 ], K [ K000831969 , K000831970 ]! digital images).

LECTOTYPIFICATION

While describing Didymocarpus griffithii , Wight (1850) cited the collection details only as “Khassya [Khasya], Griffith”. Burtt (1975) and Vitek et al. (2000) did not provide further details, except for the latter mentioning K for the location of the types. Hence this can be considered as the first step of lectotypification. There are three relevant herbarium sheets at K (K000831968, K000831969, K000831970). All of them bear perfect specimens with axillary cymes and a pair of lanceolate bracts at each branching and with the annotations “Khasya [Khassya], Griffith ” in pencil or ink. K000831968 and K000831969 bear original Wight herbarium labels (HERB. R. WIGHT. PROP.). Among them, sheet K000831968 with a Wight label and annotation by Weitzman and Skog as type material is selected here as the lectotype (second-step).

Figures

FIG. 2. — Lectotype of Didymocarpus griffithii Wight (http://specimens.kew.org/herbarium/K000831968). © copyright of the Board of Trustees of the Royal Botanic Gardens, Kew. Reproduced with permission.