Biology:Pentaphragma pendulum
| Pentaphragma pendulum | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Pentaphragmataceae |
| Genus: | Pentaphragma |
| Species: | P. pendulum
|
| Binomial name | |
| Pentaphragma pendulum C.W.Lin
| |
Pentaphragma pendulum is a species of flowering plant in the family Pentaphragmataceae. It is a climbing plant or herb with round, dark green leaves, and cream-yellow to green flowers. The species is native to Borneo, and was described in 2016.
Taxonomy
The species was described by Che Wei Lin in 2016, and originally published as Pentaphragma pendula. The type specimens are pressed from plants that were cultivated in a Hong Kong greenhouse.[1][2]
Distribution
Pentaphragma pendulum is native to the wet tropical biome of Sarawak, Borneo.[3] It is endemic to Kuching Division.[2]
The species grows on riverbanks and limestone hills, in mixed dipterocarp forests, at elevations of around 100 metres (330 ft).[2]
Description
Pentaphragma pendulum is a climbing plant, or a fleshy herb with branches that grow horizontally along the ground. The stem can be over 15 centimetres (5.9 in) long.[2]
The leaves are almost circular or widely ovate, 9–15 centimetres (3.5–5.9 in) long, 8–12 centimetres (3.1–4.7 in) wide, and have 1.5–3 centimetres (0.59–1.18 in) stems. The leaves are arranged alternately, dark green, and have silvery edges.[2]
The inflorescences are bent downwards, have five to twelve flowers, and grow on 1–2 centimetres (0.39–0.79 in) stems. The flowers are 2.3–3.8 centimetres (0.91–1.50 in) long, and have stems that are around 5 millimetres (0.20 in) long. The calyx has five pale green lobes, which are oblong to narrowly ovate or spoon-shaped. The corolla is a cream-yellow to pale yellowish-green tube, which is 6–9 millimetres (0.24–0.35 in) long, 4–5 millimetres (0.16–0.20 in) wide, and has five curved lobes, which are fused together. The flowers have five stamens. The hypanthium is rod-shaped, 18–23 millimetres (0.71–0.91 in) long, and 3.5–5 millimetres (0.14–0.20 in) wide.[2]
Pentaphragma pendulum is similar to Pentaphragma longisepalum.[2]
Etymology
The specific epithet refers to the hanging inflorescence.[2]
References
- ↑ "Pentaphragma pendulum C.W.Lin". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew. https://www.ipni.org/n/77159548-1.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Lin, Che-Wei (14 November 2016). "Two new species of Pentaphragma (Pentaphragmataceae) from Sarawak, Borneo". Taiwania 61 (4): 355-361. doi:10.6165/tai.2016.61.355. https://taiwania.ntu.edu.tw/pdf/tai.2016.61.355.pdf. Retrieved 7 August 2026.
- ↑ "Pentaphragma pendulum" (in en). Royal Botanic Gardens, Kew. http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:77159548-1.
Wikidata ☰ Q92138036 entry
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