Two New Species of Neolitsea (Lauraceae), N. kraduengensis from Thailand and N. vuquangensis from Vietnam and an Analysis of their Phylogenetic Positions using ITS sequences

Abstract

Two novel species of eolitsea (Lauraceae), eolitsea aduen ensis Tagane & Yahara and . u uanensis Mitsuyuki & Yahara, are described and illustrated. eolitsea aduen ensis occurs in Phu Kradueng National Park, Loei Province, Northeast Thailand. eolitsea u uan ensis is in Vu uang National Park, Ha Tinh Province, North Central Vietnam. Morphological differences of the two species from similar species are presented. A phylogenetic tree reconstructed from ITS sequences supports their distinctiveness. Two phenotypically similar species, eolitsea au ata and . u uan ensis, with dense golden yellow hairs on the leaf blades, are not sister to each other.