<i>Ophiorrhiza mizoramensis</i> (Rubiaceae)—A New Species From Mizoram, India

ABSTRACT A new species, Ophiorrhiza mizoramensis , is described from Murlen National Park, Mizoram, India. This species is closely allied to O. gajureliana Bawri &amp; Baro, O. ripicola Craib and O. ochroleuca Hook.f., but can be differentiated by several characters, including 10–19 pairs of lateral leaf veins, a petiole up to 6 cm long; persistent ovate stipule; a pubescent, peduncled biparous helicoid cyme inflorescence reaching up to 12 cm in length; dark purplish‐pink corolla tube up to 1.8 cm long; and oblanceolate stigma lobes about 14 mm in length. To enhance the understanding of this newly described species, comprehensive documentation has been provided, which includes a detailed morphological description, phenology, distribution, ecology, conservation status, comparative analysis of morphological features with closely allied species along with illustration and color photographs. The new species is evaluated and provisionally assessed as “Critically Endangered (CR‐D)” according to recent red list IUCN criteria.