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| Heteropolygonatum farreri Floden, in Floden et Pendry, 2025. |
Abstract
A new species of Heteropolygonatum, H. farreri, is described from the easternmost part of Myanmar and western Yunnan in a limestone region of the Gaoligongshan. It is morphologically similar to Heteropolygonatum marmoratum but differs by its shortly scabrous stem, narrowly cylindrical perianth with lanceolate tepals, red-orange fruit, and diploid chromosome count. An illustration of the new species is provided, as is a map of its distribution and that of its closest relative, Heteropolygonatum marmoratum, showing their disjunction. Chromosome counts for Heteropolygonatum farreri (2n = 32) and a second count for H. marmoratum (2n = 4x = 64) are given.
Keywords: Asparagaceae, China, Chromosome, Endemic, Heteropolygonatum, Myanmar
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| Heteropolygonatum farreri Floden, sp. nov. A, Habit in the field in Myanmar; B, a leafy stem with fruit; C, the perianth (outer surface; dissected, showing the insertion level of the filaments, and the lengths of the ovary and style; and showing the filament shape and lightly papillose surface ornamentation). Scale bars in C: 1 mm. All photographs of B.Olsen s.n. (TENN), taken by B. Olsen (A and B) and A. J. Floden (C). |
A. J. Floden and C. A. Pendry. 2025. A New Species of Heteropolygonatum (ASPARAGACEAE: CONVALLARIOIDEAE, POLYGONATEAE) from the Gaoligongshan in eastern MYANMAR and western CHINA. Edinburgh Journal of Botany. 82; DOI: doi.org/10.24823/ejb.2025.2057