New state distributional records of five Araceae species from Mizoram, northeast India

Five species of the Araceae family namely Arisaema petiolulatum Hook.f., Cryptocoryne retrospiralis (Roxb.) Kunth, Colocasia oresbia A.Hay, Steudnera colocasioides Hook.f. and Xanthosoma sagittifolium (L.) Schott are reported here as new distributional records for the flora of Mizoram, Northeastern India. Taxonomic identification was carried out through critical examination of diagnostic vegetative and reproductive morphological characters supported by field observations and reference to pertinent literatures. These reported species occur in shaded forest margins, stream banks and disturbed habitats. Brief descriptions, phenology, habitat notes and locality information are provided for each taxon. These findings extend the known geographical range of the species to Mizoram and contribute to the documentation of aroid diversity in Northeastern India.