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| Mappianthus kachinensis Utteridge & K.Armstr., in Utteridge, Aung, Wheatcroft, Plummer et Armstrong. 2025. Drawn by Andrew Brown. |
Abstract
Mappianthus kachinensis, a new species currently only known from Kachin State, Putao District, northern Myanmar, is described and illustrated. A detailed description along with etymology, conservation status, and a line illustration are provided for a new species. The genus is still poorly known, and this discovery increases the number of species in Mappianthus to at least three. Problems with species delimitation in the genus are also briefly discussed.
Keywords: Icacinales, Iodes, Mappia, China, Borneo, new taxon, taxonomy
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| Mappianthus kachinensis Utteridge & K.Armstr.: A. Habit of flowering stem; B. Detail of main stem showing warty lenticels; C. Leaf node with one peduncle; D. Node with branched tendril; E. Branch of inflorescence showing denser indumentum below flowers; F & G. Hydrated flowers; H. Fruit, side view; J. Fruit on inflorescence. A–C, F & G from Armstrong et al. 1318; D & E: from Armstrong et al. 1142; H & J from Armstrong et al. 1034. Drawn by Andrew Brown. |
Mappianthus kachinensis Utteridge & K.Armstr., sp. nov.
Recognised in the genus Mappianthus by the combination of the following characters: glabrous to sparsely hairy on the vegetative parts, chartaceous, ovate leaves with relatively long petioles to 2.5 cm long, the staminate inflorescence with a peduncle to 6.5 cm long, and the glabrous oblongoid fruits.
Timothy M. A. Utteridge, Mu Mu Aung, Hannah Wheatcroft, Jack Plummer and Kate E. Armstrong. 2025. Mappianthus kachinensis (Icacinaceae), A New woody climber from Kachin State, Myanmar. Thai Forest Bulletin (Botany). 53(1); 25–32. DOI: doi.org/10.20531/tfb.2025.53.1.04
https://x.com/timutteridge/status/1922144930262139210
