新增物種：西拉雅蛇舌草(Rubiaceae)以及三個新組合名

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Abstract

The new species Scleromitrion sirayanum T.C. Hsu & Z.H. Chen (Rubiaceae) is described and illustrated from Taiwan. S. sirayanum is similar to S. angustifolium (Cham. & Schltdl.) Benth. but easily distinguished by its constantly solitary flowers, salverform corolla, adaxially basally long villous corolla lobes, spreading to ascending persistent calyx lobes, and obconic capsules dehiscent both septicidally and loculicidally into 4 valves. S. sirayanum is so far only found in Nanhua District of Tainan City and evaluated as Vulnerable based on the IUCN Red List criteria. Three new combinations are also proposed for the Hedyotis-Oldenlandia complex in Taiwan.

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新增西拉雅蛇舌草(Scleromitrion sirayanum T.C. Hsu & Z.H. Chen) IUCN category: VU 特有種

新組合名：

1. Dimetia hedyotidea (DC.) T.C. Hsu, comb. nov. 南投涼喉茶 (basionym: Spermacoce hedyotidea DC., Prodr. 4: 555. 1830, synonym: Hedyotis hedyotidea (DC.) Merr.)
2. Leptopetalum strigulosum (Bartl. ex DC.) Fosberg var. parvifolium (Hook. & Arn.) T.C. Hsu, comb. nov. 脈耳草 (basionym: Hedyotis biflora var. parvifolia Hook. &. Arn., Bot. Beechey Voy. 264. 1841, synonym: Hedyotis strigulosa (Bartl. ex DC.) Fosberg var. parvifolia (Hook. & Arn.) T. Yamaz.)
3. Scleromitrion brachypodum (DC.) T.C. Hsu, comb. nov. 擬定經草 (basionym: Oldenlandia brachypoda DC., Prodr. 4: 424. 1830, synonym: Hedyotis brachypoda (DC.) Sivar. & Biju)

Reference

Hui-Lung Chiu, Chou-Tou Shii and T.-Y. Aleck Yang (2017) Scleromitrion sirayanum (Rubiaceae: Spermacoceae), a new species of the Hedyotis-Oldenlandia complex in Taiwan. Taiwania, 62(2): 151‒156. url pdf