Hoya parvifolia
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Hoya parvifolia is a plant of the genus of wax flowers ( Hoya ) of the subfamily of asclepiadoideae (Asclepiadoideae).
features
Hoya parvifolia is an epiphytic , climbing plant with twisting, thread-like, sparsely branched shoots. The shoots are thin, sparsely leafed and densely covered with short, rough hair. The shoots have adhesive roots with which the plant attaches to the ground. The leaves are short-stalked, the petioles are 3 mm long and hairy. The densely short, rough-haired leaf blades are oblong to oblong-elliptical, 1.2 to 1.7 cm long and 0.8 to 1 cm wide. Leaf base and apex are blunt.
The umbel-shaped inflorescence contains 15 to 20 flowers. The inflorescence stalk is 4 to 5 cm long, thin and wire-haired. The bare flower stalks are 0.7 to 1.2 cm long. The sepals are egg-shaped, 2 mm long and end blunt. They are bent back, the edges are covered with tiny hairs, otherwise they are bare on the outside. The pale yellow corolla is 7 mm in diameter. The petal lobes are ovate, tapering to a point with tips curved back. They are densely hirsute on the inside and bald on the outside. The staminale corolla almost reaches the diameter of the corolla. The outer process is elliptical, the inner process ascending, long pointed and sunk median. The anthers are trapezoidal, the transparent anthers extension triangular. The pollinia are elongated, beveled at the apex. On the outside of the base is a horn-shaped extension. The caudiculae are very small or short. The corpusculum is elliptical and about 5 times shorter than the pollinia.
Similar Art
The flower color and shape is similar to Hoya lacunosa . The vegetative parts are more like a species of the genus Dischidia .
Geographical distribution and habitat
The species is so far only known from the type locality near Danua Kotta in the Indagiri District, Sumatra, Indonesia. It grows there on trees. Rudolf Schlechter found them blooming there in June 1901.
Taxonomy
The taxon Hoya parvifolia was described by Rudolf Schlechter in 1908 . The holotype is kept in the herbarium of the Botanical Garden in Berlin ( Schlechter 13307 ). Plants of the World online accepts Hoya parvifolia as a valid taxon.
literature
- Christiane Hoffmann, Ruurd van Donkelaar, Focke Albers: Hoya. In: Focke Albers, Ulli Meve (Hrsg.): Succulents Lexicon Volume 3 Asclepiadaceae (silk plants) . Pp. 147-160, Ulmer, Stuttgart 2002, ISBN 3-8001-3982-0 (p. 157).
- Dale Kloppenburg, Ann Wayman: The World of Hoyas - a book of pictures. A revised version. Orca Publishing Company, Central Point, Oregon 2007, ISBN 0-9630489-4-5 , pp. 200/01
- Rudolf Schlechter: Contributions to the knowledge of the Asclepiadaceae of the Monsum area. Botanical Yearbooks for Systematics, 40 (supplement 92): 1–45. 1908 Online at Biodiversity Heritage Library , p. 15.