Abstract
We apply data from palynology, meiotic studies and interspecific hybridization to the taxonomy of the genus Drimia Jacq. (Hyacinthaceae: Urgineoideae) in India. We recognize eight species, seven of which are endemic to the subcontinent. The species can be grouped according to floral phenology and palynology into night-blooming species with meta-reticulate pollen and day-blooming species with micro-reticulate pollen. We provided a fully illustrated account of the Indian species, with full descriptions and nomenclature, an identification key and distribution maps. The new sect. Indurgia is described to accommodate the SEAsian species of Drimia. The two species Urginea polyphylla Hook.f. and U. coromandeliana Wight are identified as species of Dipcadi and are excluded from Urgineoideae.
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