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| Typhonium phuocbinhense V.D.Nguyen & T.Croat, in Nguyen, Toan, Nguyen, Ha, Thi et Croat, 2021. |
Abstract
Typhonium phuocbinhense has been described as a new species from central Vietnam. The plant grows on sand-soil in the gaps of rocks and the banks of stream line in the Phuoc Binh National Park of Ninh Thuan Province. The species is different from all other species in the genus. It is closest to T. varians from Thailand but differs from this species by having leaves not variegated, spathe tube brown and spathe lamina much narrower and staminodes folded 180o at apex. Beside that the species key of Typhonium in Vietnam and the species information of distribution, ecology, habitat and conservation are also introduced.
Keywords: Typhonium, Ninh Thuan, Phuoc Binh National Park, taxonomy, Vietnam, Monocots
Typhonium phuocbinhense V.D.Nguyen & T.Croat sp. nov.
Typhonium phuocbinhense is close to T. varians Hett.& Sookch. By having triolate leaf blade, spathe lamina triangular, staminodes subulate, acute, pale yellow, curved. It is different from later species by having leaf blade not variegated (vs variegated), spathe tube brown outside (vs green), spathe lamina narrow or elongate triangular, 12–16 × 4.0–4.5 cm (vs triangular, 7–14 × 4.0–7.5 cm), staminodes folded 180o (vs just curved down ward not folded).
Van Du Nguyen, Le Chi Toan, Van Dinh Nguyen, Minh Tam Ha, Van Anh Nguyen Thi and Thomas Croat. 2021. Typhonium phuocbinhense sp. nov. (Araceae: Areae), A New Species from central Vietnam. Phytotaxa. 482(1); 73–79. DOI: 10.11646/phytotaxa.482.1.8
