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An updated list of the species of Gaultheria (Ericaceae) from Myanmar is presented, with additions and corrections to a previously published list. Gaultheria natmataungensis, a new species from Natma Taung National Park, Chin State, Myanmar, is described and illustrated. It is the only species of Gaultheria endemic to the country. Additionally, G. griffithiana var. insignis is raised to the rank of species (G. insignis), and G. insignis and G. suborbicularis are newly recorded for Myanmar. Photographs of living plants of G. insignis are included, along with an updated description and illustration that incorporate new morphological data, including the first documentation of floral characters. Lectotypes are provided for G. fragrantissima, G. insignis, and G. nummularioides. A key to the species is provided. The number of Gaultheria species recorded from Myanmar is 24.

Two new species of Vaccinium from the Philippines are described and illustrated from historical herbarium collections. Vaccinium burburan from Luzon Island, Northern Philippines is morphologically similar to V. tenuipes, but is distinguished by having shorter petioles, pedicels and corolla, adaxially pubescent leaf blades with cordate base, apically pubescent corollas, and pubescent filaments throughout. It is only one of two species of Vaccinium in the Philippines known to have a cordate leaf blade base. Vaccinium burburan is considered critically endangered. Vaccinium jubatum from Mindanao Island, Southern Philippines, is morphologically similar to V. sylvaticum, but is distinguished by having a dentate leaf blade margin, shorter inflorescences and pedicels, a glabrous calyx, and shorter filaments. The dentate leaf blade margin of V. jubatum uniquely distinguishes it from other Philippine Vaccinium species. The conservation status of V. jubatum is considered data deficient. These discoveries further increase the current number of known Vaccinium species in the Philippines to 40.

The paper summarizes the knowledge on three Vietnamese species of Ericaceae. Craibiodendron yunnanense is newly documented for the flora of Vietnam. The presence of Lyonia villosa in the country is confirmed by specimen citation. We publish a new combination, Vaccinium glaucorubrum, to accommodate the taxon earlier known as Vaccinium gaultheriifolium var. glaucorubrum at species rank. We provide a detailed morphological description of V. glaucorubrum and revise the geographical distribution of this species. We review type material of V. glaucorubrum and designate the specimen at KUN (1208884) as a lectotype. We illustrate all three species with analytical photographs of the plants in the living state.

Vaccinium carmesinum is described as a new species of Ericaceae from Mt. Tago Range, Mindanao Island, Philippines. It is similar to V. platyphyllum Merrill and V. luzoniense S.Vidal but is distinct from the former by longer and wider leaves, longer racemes, longer bracts, glabrous corollas, and glabrescent fruits, and from the latter by longer petioles, leaf glands distributed along the blade margin, glabrous rachis, and lanate filaments. Vaccinium carmesinum bears the widest leaves among Philippine Vaccinium. Its discovery increases the number of Vaccinium species recognized in the Philippines to 37.