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| Typhonium vinicolor P.Saensouk, K.Z.Hein & Saensouk, in P. Saensouk, S. Saensouk, Hein, Boonma, Sengthong et Rakarcha. 2024. |
Abstract
Typhonium vinicolor from Khon Kaen Province (Northeastern Thailand), is described and illustrated as a species new to science. Color plates, phenology, distribution, discussion of similar taxa, and conservation status assessment are provided.
Key words: Areae, Aroideae, Indochina, Northeastern Thailand, plant taxonomy
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| Typhonium vinicolor A plant in habitat B excavated flowering plants C leaf blade (left showing adaxial surface, right showing abaxial surface) D inflorescence at pistillate anthesis, nearside spathe artificially removed E spadix at pistillate anthesis, nearside spathe artificially removed. Photos by: Surapon Saensouk and Thawatphong Boonma. |
Typhonium vinicolor P.Saensouk, K.Z.Hein & Saensouk, sp. nov.
Diagnosis: Typhonium vinicolor is easily distinguishable from the other Typhonium species by having narrowly elliptic to elliptic-lanceolate leaf blades with a reddish-purple abaxial surface. An only exception is T. laoticum Gagnep. (Gagnepain 1942), which shows similar leaf blades. However, T. vinicolor differs from T. laoticum by its reddish-purple abaxial surface of leaf blades (vs. pale green), white or pale green spathe with dark purple mottling externally (vs. pink spathe with brown mottling externally), pistillate zone with 5–6 pistil rows (vs. 2–3 pistil rows), and staminodes more or less loosely arranged in 4–5 spirals (vs. staminodes densely arranged in 2–3 spirals).
Etymology: The specific epithet is derived from the Latin “vinicolor” (wine-coloured), referring to the reddish-purple abaxial surface of the leaves.
Proposed vernacular name: Uttapit-See-Wine.
Piyaporn Saensouk, Surapon Saensouk, Khant Zaw Hein, Thawatphong Boonma, Anousone Sengthong and Sarayut Rakarcha. 2024. Studies on Typhonium (Araceae) of Thailand I: Typhonium vinicolor, A New Species from Khon Kaen Province, Northeastern Thailand. PhytoKeys. 246: 189-195. DOI: doi.org/10.3897/phytokeys.246.128778
