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| Hoya spectatissima B.Xue, E.F.Huang, Gang Yao & J.X.Huang, in Xue, Huang, Yao, Zhao et Huang, 2023. |
Abstract
Hoya spectatissima, a new species from Yunnan Province, China, is described and illustrated. Hoya spectatissima is morphologically similar to H. lyi, but can be easily distinguished from the latter by its succulent leaves that are 2‒4.5 cm long (vs. coriaceous leaves that are up to 9 cm long), corolla that is pink to pale pink (vs. yellowish-white) and corona lobes that are sub-rhombic in top view (vs. ovoid in top view).
Keywords: Asclepiadoideae, Asia, Marsdenieae, morphology, nomenclature, taxonomy
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| Hoya spectatissima B.Xue, E.F.Huang, Gang Yao & J.X.Huang, A habit B cross section of lamina C leaves D, E inflorescence F flower (top view) G flower (bottom view) H corona (top view; Red arrowheads indicate the inner angle of the corona lobes and yellow arrowheads indicate the outer angle of the corona lobes) I corona (side view) J ovaries K pollinarium. |
Hoya spectatissima B.Xue, E.F.Huang, Gang Yao & J.X.Huang, sp. nov.
Diagnosis: Hoya spectatissima is most similar to H. lyi H.Lév, but differs from the latter by its succulent leaves (vs. coriaceous leaves) that are 2‒4.5 cm in length (vs. up to 9 cm in length) and rounded or rarely obtuse at the apex (vs. mostly acute at the apex), pink to pale pink corolla (vs. yellowish-white corolla) that is densely sericeous adaxially (vs. densely pubescent adaxially), ivory white corona lobes (vs. purple towards the inner angle and ivory white towards the outer angle of corona lobes) that are sub-rhombic in top view (vs. ovoid in top view) and have an acute outer angle (vs. truncate to shallowly concave outer angle).
Distribution and habit: Hoya spectatissima is known from at least two localities in Cangyuan Hsien and Gengma Hsien, Yunnan Province, China. It is a lithophytic liana that climbs on rocks in karst habitat. It is a common species in Guanlong Village, Gengma Hsien, but an occasional species in Menglai Town, Cangyuan Hsien.
Etymology: Hoya spectatissima is named to reflect its beautiful flowers.
Bine Xue, Erfeng Huang, Gang Yao, Guohua Zhao and Jiuxiang Huang. 2023. Hoya spectatissima (Gentianales, Apocynaceae), A New Species from Yunnan, China. PhytoKeys. 222: 69-74. DOI: 10.3897/phytokeys.222.99420
2023年3月国产新种速递 https://www.bilibili.com/read/cv22792971/
