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| Zingiber procumbens Nob.Tanaka & M.M.Aung, in Tanaka, Miyake & Aung, 2022. |
Abstract
A new species, Zingiber procumbens Nob.Tanaka & M.M.Aung (Zingiberaceae), from
Kayah State, eastern Myanmar, is described with color plates. Zingiber procumbens is assignable
to section Cryptanthium Horan. based on lateral inflorescences on the procumbent peduncles. This
species is similar to Z. bradleyanum Craib in vegetative characters, but well distinguished from it
by a combination of long bilobed ligules, lamina with silvery line, procumbent peduncle, tubular
bracts with dark reddish stripes, and flowers with purple orbicular labellum. Detailed descriptions,
color plates and preliminary IUCN assessments are provided.
Keywords: Burma, ginger, Karen Hills, new taxon, Zingiber procumbens.
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| Zingiber procumbens Nob.Tanaka & M.M.Aung. A. Habit. B. Ligules. C. Basal and underground part showing the procumbent peduncles arising from rhizomes. Scale bars: 3 cm for B, 5 cm for C. |
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| Zingiber procumbens Nob.Tanaka & M.M.Aung. A. Inflorescence. B. Flowers on inflorescence. C. Labellum with lateral staminodes. D. Bract. E. Bracteole. F. Dorsal and lateral corolla lobes. G. Stamen with anther crest. H. Anther thecae. I. Stigma. J. Ovary with epigynous glands. K. Cross section of ovary. Scale bars: 2 cm for A, 1 cm for B, D, E, F, 0.5 cm for C, G, H, 2 mm for J, K and 1 mm for I. |
Zingiber procumbens Nob.Tanaka & M.M.Aung, sp. nov.
(sect. Cryptanthium)
Diagnosis:— Zingiber procumbens is similar to Z. bradleyanum in having long bilobed and twisted ligules unattached to leafy stem, and lamina with silvery line along the mid-vein, but differs from it in having remarkably longer procumbent peduncle, the tubular bracts with dark reddish stripes and purple orbicular labellum.
Etymology: The specific epithet refers to procumbent inflorescence of this species.
Nobuyuki Tanaka, Katsunori Miyake and Mu Mu Aung. 2022. Taxonomic Studies on Zingiberaceae of Myanmar IV: A New Species of Zingiber (Sect. Cryptanthium) from Kayah State. Bull. Natl. Mus. Nat. Sci., Ser. B. 46(1); 39–46. DOI: 10.50826/bnmnsbot.48.1_17
kahaku.go.jp/english/research/publication/botany/v46_1.html
kahaku.go.jp/research/publication/botany/download/46_1/L_BNMNS_B46-1_39.pdf
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