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| Amorphophallus wasa Naive, K.Z.Hein & Hett., in Naive, Hein & Hetterscheid, 2022. |
Amorphophallus wasa Naive, K.Z.Hein & Hett., is described and illustrated as a species new to science from the Sagaing Region, Myanmar. It is morphologically similar to A. saraburiensis Gagnep., but can be easily distinguished by its unilocular ovaries and lack of staminodes between pistillate and staminate zones. A detailed description, colour plates, phenology, distribution map, provisional conservation status and a key to the Amorphophallus species from Myanmar are provided. In addition, A. elatus Hook.f. is reported as a newly recorded species for Myanmar, and the name A. corrugatus N.E.Br. is newly synonymized under A. kachinensis Engl. & Gehrm.
Keywords: Aroideae; Burma; Southeast Asian Flora; biodiversity; plant taxonomy
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| Amorphophallus wasa Naive, K.Z.Hein & Hett. a. Inflorescence; b. spadix (inset: b1: pistillate flowers, b2: staminatee flowers); c. spathe. — Scale bars: a, c = 10 cm; b = 5 cm. — Photos: K.Z. Hein. |
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| Amorphophallus wasa Naive, K.Z.Hein & Hett. a. Habit; b. leaf; c. inflorescence; d. infructescence. — Scale bars: c = 5 cm; d = 2 cm. — Photos: a, b, d: K.Z. Hein; c: Thuta Oo. |
Amorphophallus wasa Naive, K.Z.Hein & Hett., sp. nov.
Amorphophallus wasa is similar to Amorphophallus saraburiensis Gagnep. from Thailand, but differs by lacking staminodes between pistillate and staminate zones, having a shorter, 0.7 mm long, brownish green style (vs style 1–2 mm long, purple), a unilocular ovary (vs bilocular ovary), an acute and rugulose appendix (vs obtuse and corrugate appendix), and spathe base inside with shallow warts (vs thick shortly elongate, fleshy warts).
Etymology. The specific epithet ‘wasa’ is coined from the species local name and used as a noun in apposition.
Mark Arcebal K. Naive, Khant Zaw Hein and Wilbert Hetterscheid. 2022. Taxonomic Studies of Araceae in Myanmar IV: A New Species, A New Record and A New Synonym for the Genus Amorphophallus. Blumea - Biodiversity, Evolution and Biogeography of Plants. DOI: 10.3767/blumea.2022.67.02.05
