Xanthophytum antoanense (Rubiaceae, Ophiorrhizeae), a new species from Vietnam
Xanthophytum antoanense 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-lob...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Pensoft Publishers
2024-12-01
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| Series: | PhytoKeys |
| Online Access: | https://phytokeys.pensoft.net/article/137482/download/pdf/ |
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| Summary: | Xanthophytum antoanense 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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| ISSN: | 1314-2003 |