Hoya chloroleuca
| Hoya chloroleuca | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Hoya chloroleuca | ||||||||||||
| Schltr. |
Hoya chloroleuca is a plant of the genus of wax flowers ( Hoya ) of the subfamily of asclepiadoideae (Asclepiadoideae).
features
Hoya chloroleuca is an epiphytic , little branched, sparsely leafed subshrub. The thread-like shoots are flexible and usually hang loosely, rarely twisting a little. The shoots are round and bare in cross-section. The opposite, spread leaves are petiolate, the petioles are 0.5 to 1 cm long. They are bare and deepened on the upper side. The thin leaf blades are lanceolate or elliptical-lanceolate, 6 to 8 cm long and in the middle 2 to 2.3 cm wide. The apex is pointed or nearly pointed, the base is **. The tops and tops are bald.
The umbel-shaped inflorescence contains about 10 individual flowers. The inflorescence stalk is up to 7 cm long and glabrous. The flower stalks are thread-shaped, 7 to 10 mm long and also glabrous. The sepals are ovate-lanceolate and end blunt. They are bald on the outside.
The white corolla has a diameter of 1.2 cm. The sepals are lanceolate-ovate, bluntly tapered and glabrous. They are very small, usually around 1 mm long. The petals are fused in the lower third. They are elongated and pointed. They are bare on the outside, dense on the inside and very finely fluffy-papillae. The greenish corolla is spread almost horizontally. The inner and outer processes hardly rise. The corolla lobes measure about 1.75 mm from the inner to the outer end. They are oblong-egg-shaped, the apex short triangular with blunt end. The sides are rounded. The anthers are a little shorter. The pollinia are oblique-egg-shaped with a broad, hyaline outer edge. The caudiculae are very short. The corpusculum is very small and rhombic; the caudiculae begin at the widest point of the corpusculum. Fruits and seeds are not known.
Similar Art
Hoya chloroleuca is similar to Hoya gracilipes Schlechter. The petal tips are only slightly turned over, the apices are pointed. The corolla lobes are shorter and relatively higher in side view. The caudiculae are longer in the pollinarium.
Geographical distribution and habitat
The range of the species is the Torricelli Mountains in northeast Papua New Guinea . It was worse there on trees about 800 m above sea level, and blooming in September 1909.
Taxonomy
The taxon was described by Rudolf Schlechter in 1913 . The holotype is kept under the number Schlechter # 20314 in the herbarium of the Botanical Garden Berlin . The Plants of the World online database accepts the taxon as a valid species.
literature
- Robert Dale Kloppenburg: Dr. Schlechter's Hoya species. Fresno, California, 1993 Online at Biodiversity Heritage Library , pp. 42/43
Individual evidence
- ^ Rudolf Schlechter: The Asclepiadaceen of German New Guinea. Botanical Yearbooks for Systematics, Plant History and Plant Geography, 50: 81-164, 1913. Online at Biodiversity Heritage Library
- ↑ Kew Science - Plants of the World: Hoya chloroleuca Schltr.