Two new species of Oreocharis, O. tribracteata and O. rufescens, are described and a key to the species in Vietnam is provided. The new species have distinct features not previously, or rarely, observed in the genus, both showing the partial fusion of the calyx lobes into a tube, and the presence of three bracts in Oreocharis tribracteata.

We report a new record of Jasminum albicalyx Kobuski in Vietnam. The plant differs from J. pedunculatum Gagnep., a closely related taxon, by foliar and floral characters such as less number of lateral veins, presence of domatia at vein axils on the abaxial surface of leaf, smaller bracts, white calyx having more number of lobes and less number of lobes in corolla. Morphological description, line drawing and color photographs are provided in addition to the species key of allied species of Jasminum albicalyx in Vietnam.

During a recent molecular-phylogenetic revision of Deinostigma, material previously included in Chirita minutihamata D.Wood was assumed to belong to two different entities, Deinostigma minutihamata (D.Wood) D.J.Middleton & H.J.Atkins for material collected in Vietnam and D. cicatricosa (W.T.Wang) D.J.Middleton & Mich.Möller for material from China, although without supporting molecular evidence for the Vietnamese taxon. Here, we provide results in support of this decision in the form of a molecular phylogenetic analysis that includes material of D. minutihamata recently collected in Vietnam. This analysis shows that D. cicatricosa is more closely related to the other Chinese species, D. cyrtocarpa (D.Fang & L.Zeng) Mich.Möller & H.J.Atkins, than to the Vietnamese D. minutihamata.We also provide amended detailed descriptions of D. minutihamata and D. cicatricosa.

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