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| Globba ruiliensis X. D. Ma, W. G. Wang & J. Y. Shen in Ma, Wang, Gong, ... et Shen, 2021. |
Abstract
Globba ruiliensis, a new species of Zingiberaceae from Ruili City, Yunnan Province, China, is described and illustrated. This new species is similar to G. multiflora, but clearly differs in its oblong or ovate-lanceolate leaves, 18–25 × 6–12 cm, adaxially strigose along veins, lateral staminodes are nearly equal to corolla lobes, 7–8 mm long, ovate-oblong, apex rounded, yellow to orange labellum, and verrucose ovary and fruit. A comparison table of related species is provided.
Keyword: Globba multiflora, Globba sessiliflora, Globba racemosa, Haplanthera, Mantisia, Ruili
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| Fig. 1. Globba ruiliensis X. D. Ma, W. G. Wang & J. Y. Shen A: Plants. B: Roots and leafy shoots. C–D: Adaxial and abaxial leaves surface. E–F: Adaxial and abaxial leaves surface enlarged showing the hair. G: Ligule. H–I: Inflorescence. J: Bulblet. K–L: Adaxial and abaxial bracts surface. M: Front view of the open flower. N: Side view of the flower. O: Dorsal corolla lobe. P: Lateral corolla lobes. Q: Lateral staminodes. R: Labellum. S: Infructescence. T: Fruit. U: Longitudinal section of fruit. V: Seeds. |
Globba ruiliensis X. D. Ma, W. G. Wang & J. Y. Shen, sp. nov.
瑞麗舞花薑
Type: CHINA, Yunnan Province, Ruili City, Nongdao Town, Dengga Village, 23°57′N, 97°33′E, alt. 854 m, 21 October 2019, Jian-Yong Shen, Wen-Guang Wang & Xing-Da Ma 1666
(holotype: HITBC!; isotypes: HIB!, HITBC!, KUN!).
Diagnosis: This new species is morphologically similar to G. multiflora, but clearly differs in its oblong or ovate-lanceolate leaves, 18–25 × 6–12 cm, adaxially strigose along veins (vs. oblong-lanceolate leaves, 20– 30 × 3–6 cm, adaxially glabrous), lateral staminodes are nearly equal to corolla lobes, 7–8 mm long, ovate-oblong, apex rounded (vs. lateral staminodes are smaller than corolla lobes, ca. 4 mm long, lanceolate, apex acuminate), yellow to orange labellum (vs. mostly purple labellum, only yellow towards the sinus), and verrucose ovary and fruit (vs. smooth ovary and fruit).
Etymology: This new species is named for the type locality, Ruili City.
Distribution and habitat: This new species is currently known from Yunnan Tongbiguan Provincial Nature Reserve, Dehong Prefecture, Yunnan Province, China, growing in wet valleys at 800–1000 m elevation.
Xing-Da Ma, Wen-Guang Wang, Qiang-Bang Gong, Gui-Hua Xu, Ji-Pu Shi and Jian-Yong Shen. 2021. Globba ruiliensis, A New Species of Zingiberaceae from Yunnan, China.
Taiwania. 66(1); 31-34. DOI: 10.6165/tai.2021.66.31
