Xanthophytumantoanense (Rubiaceae, Ophiorrhizeae), a new species from Vietnam.

IF 1.3 3区 生物学 Q3 PLANT SCIENCES PhytoKeys Pub Date : 2024-12-30 eCollection Date: 2024-01-01 DOI:10.3897/phytokeys.250.137482
Hieu Cuong Nguyen, Xuan Bach Nguyen-Le, Quoc Dat Nguyen, Tran Quoc Trung Nguyen, Hong Truong Luu
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Abstract

Xanthophytumantoanense is described as a new species endemic to Central Vietnam. It is morphologically closest to X.capitatum in having setose hairs on the abaxial leaf surface and a pedunculate head-like inflorescence but differs from the latter by a number of characteristics: shorter stem, 3-lobed stipules, narrowly lanceolate leaf blades with a cuneate-oblique base and 20-22 pairs of secondary veins, 3.5-4.5 cm long peduncle, spatulate calyx lobes, larger corollas with a 5-5.4 mm long tube and 2.4-3 mm long lobes, and an apically hairy style. A detailed description, an illustration, and information on distribution, ecology and phenology, and a provisional assessment of the conservation status of the new species are provided.

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Xanthophytumantoanense(茜草科,蛇根科),越南一新种。
黄叶植物是越南中部特有的一新种。在叶面背面有刚毛和有花序梗的头状花序,在形态上与头状花序最接近,但在许多特征上与头状花序不同:茎短,3浅裂的托叶,狭披针形叶片,楔形斜基部和20-22对次脉,3.5-4.5厘米长的花梗,匙形的花萼裂片,较大的花冠,5-5.4毫米长的筒和2.4-3毫米长的裂片,顶端有毛的花柱。文中提供了该新种的详细描述、插图、分布、生态和物候信息,以及对其保护状况的初步评估。
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来源期刊
PhytoKeys
PhytoKeys PLANT SCIENCES-
CiteScore
2.60
自引率
14.30%
发文量
189
审稿时长
6 weeks
期刊介绍: PhytoKeys is a peer-reviewed, open-access, online and print, rapidly produced journal launched to support free exchange of ideas and information in systematic botany. All papers published in PhytoKeys can be freely copied, downloaded, printed and distributed at no charge for the reader. Authors are thus encouraged to post the pdf files of published papers on their homepages or elsewhere to expedite distribution. There is no charge for color.
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