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| Syzygium khammouanense V.S.Dang, Tagane & Soulad., in Dang, Souladeth, Pham, Kongxaisavath, Phengmala, Sengthong, Souvannakhoummane, Vongthavone, Yamamoto, Tanaka, Takahashi et Tagane, 2026. |
Summary
A new species, Syzygium khammouanense V.S.Dang, Tagane & Soulad. (Myrtaceae), discovered from Khounkham District, Khammouane Province, central Laos, is described and illustrated. The new species is distinct from other Syzygium species by having 26 – 30 pairs of secondary veins and a strongly quadrangular hypanthium, 1 cm long. A description, provisional conservation assessment, photographs and vernacular name of the new species are provided.
Key Words: Indochina, Khounkham, limestone flora, plant diversity, taxonomy
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| Syzygium khammouanense V.S.Dang, Tagane & Soulad. A flowering branch; B leaf, abaxial surface; C flower bud; D inflorescence; E flower, cutaway, showing stamens and style; F young fruits; G hypanthium, with style (left), and petals, adaxial surface (centre), abaxial surface (right). photos by: Shuichiro Tagane. |
Syzygium khammouanense V.S.Dang, Tagane & Soulad. sp. nov.
Etymology. The specific epithet “khammouanense” refers to the name of the province containing the type locality, in Laos.
Vernacular name. ຫວ້າຄຳມ່ວນ (Wa Khammouane, suggested here). “Wa” is the common Lao name for the genus Syzygium, and “khammouanense” represents the province’s name where the type material was collected.
Van-Son Dang, Phetlasy Souladeth, Quoc-Trong Pham, Deuanta Kongxaisavath, Kajonesuk Phengmala, Anousone Sengthong, Keooudone Souvannakhoummane, Thyraphon Vongthavone, Takenori Yamamoto, Nobuyuki Tanaka, Kotaro T. Takahashi and Shuichiro Tagane. 2026. A New Species of Syzygium P.Browne ex Gaertn. (Myrtaceae), S. khammouanense, from central Laos. Kew Bulletin. DOI: doi.org/10.1007/s12225-025-10351-3 [21 May 2026]
