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| Ceropegia jilongensis X. D. Ma & J. Y. Shen, in Ma, Xing, Tan, ... et Shen, 2022. 吉隆吊燈花 || taiwania.NTU.edu.tw |
Abstract
Ceropegia jilongensis, a new species from Jilong, Xizang, China, is described and illustrated. This species is similar to C. hookeri, but clearly differs in its indumentum of pedicel and corolla tube, ovoid cage size, corolla lobes and interstaminal corona lobes shape. It is also similar to C. salicifolia and C. angustifolia, but easily distinguished by its leaf shape, peduncle length, indumentum of pedicel and corolla tube, interstaminal corona lobes shape. A comparison table of related species is provided.
Keyword: Affinities, Ceropegia angustifolia, C. hookeri, C. salicifolia, distribution, Jilong, sect. Chionopegia
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| Ceropegia jilongensis X. D. Ma & J. Y. Shen A: Habit. B: Plant. C: Stem and petiole showing the pubescence. D–E: Adaxial and abaxial leaves surface. F–G: Adaxial and abaxial leaves surface enlarged showing the pubescence. H: Inflorescence. I: Front view of the open flower. J: Opened corolla, showing the color of the interior. K:Front view of sepal and corona. L–M: Side view of sepal and corona. N: Ovary. O: Pollinia. |
Ceropegia jilongensis X. D. Ma & J. Y. Shen, sp. nov.
吉隆吊燈花
Diagnosis: This species clearly differs from C. hookeri by its densely pubescent pedicel (vs. glabrous pedicel); pubescent exterior of corolla tube, interior glabrous (vs. glabrous exterior, interior hairy); bigger ovoid cage, 12–15 mm in diameter, ca. 2 times as wide as the inflated basal tube (vs. 4.5–6.5 mm in diameter, as wide as the inflated basal tube); obovate corolla lobes (vs. linear-spatulate lobes); interstaminal corona lobes divided into pairs of linear teeth (vs. reduced to ciliate flanges).
Etymology: This new species is named after the type
locality, Jilong County.
Distribution and habitat: This new species is
currently known only from Sale Township, Jilong County,
Xizang Autonomous Region, China, growing in
temperate coniferous forests close to a road.
Xing-Da Ma, Yao-Wu Xing, Yun-Hong Tan, Jian-Wu Li, Shi-Shun Zhou, Hong-Bo Ding and Jian-Yong Shen. 2022. Ceropegia jilongensis, A New Species of Apocynaceae from Xizang, China. Taiwania. 67(1); 93-96.
