Three new deciduous species of <i>Berberis</i> (Berberidaceae) from Tawang and West Kameng, Arunachal Pradesh, India

Based on morphological evidence three new deciduous species of Berberis are proposed – Berberis pseudovirescens , Berberis orbicularis and Berberis tawangensis ,the types being collected in the Tawang and West Kameng districts of Arunachal Pradesh, India. Detailed descriptions and diagnoses, along with colour photoplates, distribution information and conservation status are provided. All these new species are provisionally evaluated as ‘Data Deficient' (DD) following IUCN guidelines.