Photographic images of the Rhynchoglossum species studied. a, fRhynchoglossum gardneri, and bR. notonianum both from Sri Lanka; cR. obliquum from India, d, gR. notonianum, and e, h, iR. scabrum from South India; a-e, habit; f-i, inflorescence and flowers. Arrows indicate the position of the single enlarged wing on a calyx. Scale bars all 5 mm. (photographs a, i by M. Möller; b, f by S. Ranasinghe; c by Manudev K.M. and Arunkumar P.G.; d, e, g, h by Janeesha A.P.)

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Distribution points of Rhynchoglossum in South India and Sri Lanka....

Morphological characters in relation to the topology of the Bayesian...

Photographic images of the Rhynchoglossum species studied. a,...

Photographic images of flowers of the Rhynchoglossum species studied....

SEM images of pollen of the Rhynchoglossum species studied....

Revision of Rhynchoglossum (Gesneriaceae) in South India and Sri Lanka, reinstating R. scabrum based on a multi-sample molecular-morphological approach

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Jun 2023

We revised the genus Rhynchoglossum papuae in South India and Sri Lanka, investigating in particular the status of R. scabrum. Based on molecular phylogenetic analyses and morphological studies, R. scabrum, endemic to South India, is re-established. It was previously synonymised with R. notonianum, but the multiple samples of the species included i...