Hoya globulosa
| Hoya globulosa | ||||||||||||
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![Hoya globulosa Hook.f., original illustration (from Hooker, 1882 Gardener's Chronicle ns vol 17 p. 741 Fig.115 [1])](https://de.wikipedia.org/wiki/Datei:Hoya_globulosa_Hooker_1882_Gardener%27s_Chronicle_n.s._vol_17_p._741_Fig.115.jpg)
Hoya globulosa Hook.f., original illustration (from Hooker, 1882 Gardener's Chronicle ns vol 17 p. 741 Fig. 115) |
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| Scientific name | ||||||||||||
| Hoya globulosa | ||||||||||||
| Hook.f. |
Hoya globulosa is a plant of the genus of wax flowers ( Hoya ) of the subfamily of asclepiadoideae (Asclepiadoideae).
features
Hoya globulosa is a perennial , epiphytic , climbing plant with strong, woody shoots. The shoots are up to 5 m long and hairy. The leaves are stalked, the petioles are 1.3 to 2.5 cam long. The leaf blades are elliptical or oblong, 12 to 17.5 cm long and 5 to 9 cm wide. They are leathery and hairy. The apex of the blade is pointed long, the base is rounded.
The spherical inflorescence is multi-flowered and hangs down. The inflorescence stalk is 7.5 to 10 cm long. The flower stalks are whitish, wire-haired and about 2.5 cm long. The sepals are rounded. The yellowish or cream colored corolla has a diameter of 1.3 cm. The petal tips are short, curved back and glabrous on the inside. The secondary crown is pink at the base. The staminal tips of the secondary crown are broadly elliptical. The outer extension is round, the inner extension is pointed and upright. The large stamen processes are relatively wide.
The follicle fruit is 30 to 40 cm long and very thin. The seed measures 7 mm in length and is severely flattened.
Geographical distribution and habitat
The range of the species are subtropical mountain forests in Bhutan , Sikkim and West Bengal (India), Laos, Vietnam and southern China. According to Wennström and Stenman, the species is said to have also been found in Myanmar and Thailand.
It not only grows epiphytically on trees, but also on rocks in primary and also secondary forests. In Sikkim and West Bengal the species occurs from around 550 to 1,200 m above sea level. Averyanov et al. found them in Laos and Vietnam at 350 to 1,150 m above sea level.
Taxonomy
The taxon Hoya globulosa was first described by Joseph Dalton Hooker (Bot. Abbreviation: Hook.f. ). The lectotype is kept in the Kew Gardens herbarium (Hooker Hoya no. 32 [BM, K]).
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. 152.
- Anders Wennström, Katarina Stenman: The Genus Hoya - Species and Cultivation. 144 p., Botanova, Umeå 2008 ISBN 978-91-633-0477-4 , p. 63
Web links
- Hoya globulosa. In: myhoyas.com. (English, picture of inflorescence and habit).
Individual evidence
- ^ A b Joseph Dalton Hooker: New Garden Plants. Gardener's chronicle, new series, 17: 732–733, 1882 Online at Biodiversity Heritage Library , p. 732, p. 741, fig. 115
- ↑ a b c d Leonid Vladimirovich Averyanov, Van The Pham, Tatiana V. Maisak, Tuan Anh Le, Van Canh Nguyen, Hoang Tuan Nguyen, Phi Tam Nguyen, Khang Sinh Nguyen, Vu Khoi Nguyen, Tien Hiep Nguyen, Michele Rodda: Preliminary checklist of Hoya (Asclepiadaceae) in the flora of Cambodia, Laos and Vietnam. Turczaninowia, 20 (3): 103–147, 2017 doi : 10.14258 / turczaninowia.20.3.10 , here p. 120.
- ↑ Kew Science - Plants of the World online: Hoya globulosa Hook.f.
- ↑ Envis Center Sikkim - On Status of environment & Its Related Issues (Environmental Information System) PDF , p. 167.