Cyananthus umbrosa Griff.

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

Cyananthus umbrosa Griff.

Notulae ad Plantas Asiaticas 4: 154 ( Griffith 1854). — Stauranthera umbrosa (Griff.) C.B.Clarke , Commelynaceae et Cyrtandraceae Bengalenses 126 ( Clarke 1874).

— Type: India. Assam, Gubroo hills , 08.III.1836, Griffith W. 3845 (lecto-, K [ K000858010 ]! digital image, here designated [ Fig. 1 ] ; isolecto-, K [ K000858011 ]! digital image).

LECTOTYPIFICATION

In the protologue Griffith (1854) cited “HAB. Assam. In umbrosis humidis collis humilis prope Gubroo Purbut: March, 1836.”, but did not provide specimen details. We have traced a single sheet at K with three flowering twigs and two barcode numbers ( K000858010 , K000858011 ). In the upper part of the sheet, there are two flowering twigs and the barcode number is labelled in between them. Thus , we are considering them as a single collection under the barcode number K000858010 . K000858011 has a single flowering specimen but the collection details are not clearly readable. On the other hand, the collection K000858010 has a field label annotated ‘ Gubroo Hills , 3.8/36’. The location exactly matches with the protologue while the date of collection is presumably March 8 1836. Further, the sub-opposite or alternate, oblong-ovate leaves, acuminate at apex, petaloid calyx and five-winged flower buds in K000858010 agrees with the protologue, hence, it is selected here as the lectotype.

Figures

FIG. 1. — Lectotype (http://specimens.kew.org/herbarium/K000858010) and isolectotype (http://specimens.kew.org/herbarium/K000858011) of Cyananthus umbrosa Griff. © copyright of the Board of Trustees of the Royal Botanic Gardens, Kew. Reproduced with permission.