Hoya meredithii
| Hoya meredithii | ||||||||||||
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| Hoya meredithii | ||||||||||||
| T. Green |
Hoya bordenii is a plant of the genus of wax flowers ( Hoya ) of the subfamily of asclepiadoideae (Asclepiadoideae).
features
Hoya mereditbii is an epiphytic or ground-rooted plant with thread-like, flexible, twisting shoots. The shoots are sparsely leafed and sparsely rooted if it has grown along branches. The usually opposite leaves are stalked, the petioles are 2.5 to 3 cm long, 0.8 cm thick, hard and twisted. Occasionally the opposite sheet is missing. The hard and rigid, light green leaf blades are egg-shaped, 12 to 30 cm long and 7.5 to 18 cm wide. The apex is long pointed, the base is blunt, and the edge is wavy. The darker leaf nerve consists of the prominent midrib and 8 to 12 secondary ribs, which split up like a network at the end.
The umbel-shaped inflorescence has up to 35 flowers. The persistent inflorescence stalk is 10 cm long and 2 mm thick. The flower stalks are straight and of equal length and therefore create a hemispherical inflorescence. The pale yellow to yellow-green corolla has a diameter of 1 cm. The sepals are triangular, 1.5 mm long, pointed and glabrous. The corolla lobes are ovate, pointed and flat to curved back. The secondary crown is bright white and has a diameter of 5 mm. It's flat and meaty. The tips are elliptical. The outer extension is pointed, the inner extension is blunt. The pollinia are elongated and flattened. The caudiculae are very short and curved. The corpusculum is comparatively very small. The flowers have a pleasant scent and excrete nectar. The flowers last about four days before they bloom. Fruits and seeds have not yet been observed.
Similar Art
Hoya meredithii is similar to Hoya globulosa Hook.f., but differs in its larger, egg-shaped leaves and hemispherical inflorescence.
Geographical distribution and habitat
The species is so far only of the type locality in Bau, Sarawak, eastern Malaysia. It grows there in tropical lowland rainforest about 35 m above sea level on calcareous soil. In cultivation (in Hawaii) it flowers preferably in April, May and June.
Taxonomy
Hoya meredithii was first described by Ted Green in 1988. Plants of the World online accepts Hoya meredithii as a valid taxon. The holotype is kept in the herbarium of the Bishop Museum in Honolu, Hawaii (T. Green Meredith 80-05, Wallace 851980). A duplicate has also been deposited in the Britton Herbarium of the New York Botanical Garden.
The species was named after York Meredith of Dee Why , Australia, who discovered the plant.
literature
- Ted Green: A new species of Hoya (Asclepiadaceae) from Sarawak. Phytologia, 64 (4): 304-306, 1988 online at Biodiversity Heritage Library
- 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. 156.
- Robert Dale Kloppenburg: Malaysian Hoya Species. A monograph. Fresno, 2004 Online at Biodiversity Heritage Library , here pp. 423–433.
- Robert Dale Kloppenburg, Ann Wayman: The World of Hoyas - a pictorial guide. A revised version. 248 pp., Orca Publishing Company, Central Point, Oregon, 2007 ISBN 0-9630489-4-5 (pp. 168/69)
- Anthony Lamb, Michele Rodda: A guide to Hoyas of Borneo. Pp. 1-204. Natural history publications, Borneo, 2016.