Abstract:The Myrsinaceae is a richly represented family in tropical and subtropical Asia.In Indochina, Pitard (1930) revised the family for Lecomte‘s Flore Generale de L‘ Indochine and recongnized 109 species in 6 genera, but since then there has been little work on this interesting group from this area. This paper is a precursor to the account of the Myrsinaceae in the "Flore du Cambodge du Laos et du Vietnam" Thirty new species and ten new varieties are described in Ardisia(A. aciphylla var. touranensis, A.applanata, A. asymmetrica, A. baviensis, A. caloneura, A. chinensis var. stenophylla, A.clemensii, A. crotonifolia, A. dumicola, A. fasciculifolia, A. filipendula, A. gracilenta, A.illicioides, A. interjacens, A. lamdongensis, A. lucidula, A. macrosepala var. schmidii, A.merrillii var. rosea, A. nhatrangensis, A. nhatrangensis var. glaucescens, A. nhatrangensis var. neurophylla, A. paradoxa, A. pitardii, A. prolifera, A. prunifolia, A. quangnamensis,A. rapaneifolia, A. ravida, A. rhodochroa, A. rubescens var. oblongifolia, A. rubescens var.puberula, A. silvestris var. appressa, A. suboppositifolia, A. vidalii, A. vidalii var.orbicularis,. A. vietnamensis), Embelia(E. cuneata) and Maesa (M. cambodiana, M. kerrii, M.laevis) Six new combinations are proposed in Ardisia (A. crenata subsp. crassinervosa, A.crenata subsp. mouretii, A. obtusa var. montana, A. perpendicularis var. balansana, A.prionata var. linearifolia, A. quinquegona var. salicifolia). The new taxa and new combinations are alphabetically arranged under the appropriate genus.