New taxa and taxonomic notes in Aspidistra (Convallariaceae s.s.) of Laos and Vietnam

This paper continues the publication of newly obtained results from a continuing taxonomic investigation of the genus Aspidistra in Laos and Vietnam. It includes diagnoses of two new species, A. medusa Aver., K. S. Nguyen & Tillich and A. triquetra Aver., Son, Tillich & K. S. Nguyen and amended descriptions of A. khangii Aver. et Tillich and A. locii Arnautov & Bogner previously only known from incomplete material. A lectotype of A. locii is proposed. Color illustrations, new or updated data on morphology, ecology, phenology, tentative relationships, distribution and conservation status are provided for all the mentioned taxa.