Gymnemaphuquocense (Apocynaceae, Asclepiadoideae), a new species from Vietnam
Bui TH, Le NH, Tran TB. PhytoKeys, January 2025.
Read the paper Free to read · doi:10.3897/phytokeys.251.136457
What this paper is about
A new species of Gymnema, a milkweed relative, described from Phu Quoc in Vietnam and separated from the similar G. yunnanense by peduncle length, hairless corolla lobe margins, seed shape and size, and the shape of the scales inside the corolla tube.
The paper also provides a key to the Gymnema species of Vietnam.
Summarised here from the abstract below. Not the authors’ words.
Abstract
A new species of Gymnema from Vietnam - G.phuquocense - is described, illustrated, and compared with the similar G.yunnanense. Gymnemaphuquocense differs from G.yunnanense by the length of peduncle (3-4 mm vs. 10-13 mm), hairs on corolla lobe margin (absent vs. present), shape of seed (broadly ovate vs. ovate-oblong), shape of scale with 2 prominent longitudinal ridges on corolla tube (lanceolate vs. linear), and length of seeds (9-10 mm vs. 13-15 mm). A diagnostic key of the Gymnema species in Vietnam is also provided.
Abstract reproduced from the published paper, which is licensed CC BY. Copyright remains with the authors.
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"Gymnemaphuquocense (Apocynaceae, Asclepiadoideae), a new species from Vietnam (listing)." Milkweed USA, 2026, https://milkweedusa.com/research/gymnemaphuquocense-apocynaceae-asclepiadoideae-a-new-species-from-vietnam-2025/. Accessed DATE.
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title = {Gymnemaphuquocense (Apocynaceae, Asclepiadoideae), a new species from Vietnam (listing)},
author = {{Milkweed USA}},
year = {2026},
url = {https://milkweedusa.com/research/gymnemaphuquocense-apocynaceae-asclepiadoideae-a-new-species-from-vietnam-2025/},
note = {Accessed DATE}
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