Hoya cumingiana
| Hoya cumingiana | ||||||||||||
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Hoya cumingiana , inflorescence |
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| Scientific name | ||||||||||||
| Hoya cumingiana | ||||||||||||
| Decne. |
Hoya cumingiana is a plant of the genus of wax flowers ( Hoya ) of the subfamily of asclepiadoideae (Asclepiadoideae).
features
Hoya cumingiana is a shrubby epiphyte . The shoots are cylindrical and sparsely covered with fine hairs. The internodes are up to 22 mm and 4 mm in diameter. The stalked leaves are elliptical to rounded, 30 to 55 mm long and 20 to 30 mm wide. They are smooth with a green top and a light green bottom. The end of the leaf is pointed, the base of the leaf is heart-shaped, the stem is 2 to 3 mm long. The inflorescence is umbel-shaped to racemiform and sits on a stalk up to 17 mm long. The inflorescence is 15 to 20-flowered and mostly hangs. The flowers are approx. 9 mm long, 10 mm in diameter and sit on a 17 to 22 mm long stem. The sepals are lanceolate, 2.3 mm long and 0.9 to 1.1 mm wide. The corolla is bent back and yellowish-cream in color. The top is densely covered with fine hairs, the underside is hairless. The crown tube is approx. 3 mm high and 3 mm in diameter. The crown lobes are lanceolate to triangular, up to 4.3 mm long and up to 3.8 mm wide. The short-stalked secondary crown has a diameter of 6 to 7 mm and is 2.5 to 5 mm long (high). It is greenish-brown to red-brown in color, the center purple. The corolla lobes are 2.5 to 3.7 mm long and 1 to 1.7 mm wide; the apex is rounded.
Geographical occurrence
The species occurs on the islands of Luzon , Palawan and Mindoro in the Philippines and on Java ( Indonesia ). The latter occurrence is questioned; possibly it is a different species. Besides being naturally occurring in tropical rainforests, it also grows on roadsides and other human-influenced habitats.
Systematics
One can distinguish between two subspecies:
- Hoya cumingiana subsp. catanauanensis Kloppenb. & G. Mend. : It occurs in the Philippines.
- Hoya cumingiana subsp. cumingiana : It occurs in Borneo, Java and the Philippines.
swell
literature
- PI Forster, DJ Liddle: Asclepiad profile: 3. Hoya cumingiana Decne. Asklepios, 58: 17-19, Brighton 1993 ZDB ID 841552-3
- Anders Wennström, Katharina Stenman: The Genus Hoya - Species and Cultivation. 144 p., Botanova, Umeå 2008, ISBN 978-91-633-0477-4 .
Individual evidence
- ↑ a b Website about the genus Hoya by Simone Merdon-Bennack - Hoya cumingiana
- ↑ a b c Rafaël Govaerts (Ed.): Hoya - World Checklist of Selected Plant Families of the Royal Botanic Gardens, Kew. Last accessed on November 15, 2018.
