Purayidathkandy Sunojkumar

Re-establishment of Plectranthus bishopianus (Lamiaceae) based on morphological and micromorphological data

Plectranthus bishopianus has recently been treated as a synonym of Plectranthus deccanicus. However, a detailed study of the type materials, recently collected specimens, as well as SEM analysis of pollen and mericarp of both species suggests that P. bishopianus is a distinct species. The specific status of P. bishopianus is thus reinstated, and it can be easily distinguished from P. deccanicus by the stem nature, leaf size and shape, cyme length, number of flowers per cyme, the structure of flowering and fruiting calyx and mericarp surface. Additionally, complete taxonomic descriptions, photographs and conservation assessments, along with notes on distribution and habitat of both species, are provided.

Leucas dhonimalayensis (Lamiaceae), A New Species from Peninsular India

Leucas dhonimalayensis Sunojk. & K.P. Vimal (Lamiaceae) is described and illustrated as a new species from the Dhoni Hills of the Western Ghats in Peninsular India. It is placed in sect. Astrodon. The morphological characters that distinguish it from the most similar species L. beddomei and L. hirta are given. Information on the distribution and habitat ecology of L. dhonimalayensis is also provided.