Hoya vitellina
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Hoya vitellina is a plant of the genus of wax flowers ( Hoya ) of the subfamily of asclepiadoideae (Asclepiadoideae).
features
Hoya vitellina is a perennial plant with strong, twisting shoots that become more or less lignified with age. The leaves are stalked, the stems are ash gray, and 2.5 to 4.5 cm long and 0.7 cm thick. The leaf blades are ovate-lanceolate, obovate or oblong, 17 to 22 cm long and 7 to 8 cm wide and thickly fleshy. The base is blunt or slightly wedge-shaped, the apex pointed or abruptly long. The bare leaves are green, the edges are slightly darker. The leaf nerve is clearly visible.
The stalked inflorescence is multi-flowered. The inflorescence stalk is 3.5 to 4.5 cm long and 0.25 cm thick. It's sparsely covered with tiny downy hair. The thin flower stalks are 2 cm long and also covered with tiny downy hairs. The sepals are ovate, 1 mm long and tapering to a point. They too are covered with small downy hairs. The corolla is spread out in a star shape and measures 1.2 to 1.3 cm in diameter. It is yellowish brown, yellowish green or pale pink in color and bald. The petal lobes are egg-shaped, 5 mm long and 5 mm wide at the base. They are long pointed and bent back apically. The tips of the secondary crown are narrowly ovate and 3.5 mm long. The outer process is narrowly pointed and darker than the tip. The inner process is pointed and ascending.
Geographical distribution and habitat
The range of the species is Malaysia as well as Kalimantan and Java, Indonesia. The habitat are tropical rainforests.
Taxonomy
The taxon was proposed by Carl Ludwig von Blume in 1849. The type specimen came from Java. The lectotype, determined by Rodda (2017), is kept in the National Herbarium of the Netherlands (Naturalis) under the number L0004346.
From Hoffmann et al. (2002) Hoya fuscomarginata was still regarded as an independent taxon. The species is now considered a synonym of Hoya vitellina .
Hoya fuscomarginata was first described in 1910 by Nicholas Edward Brown after a specimen in the National Botanic Gardens of Ireland . The then head of the garden, Mr. FW Moore, had bought the specimen from a dealer in Brussels, who stated that the specimen had been imported from British Guyana along with orchids. This is definitely wrong because there are no Hoya species in South America. The herbarium record is kept in the Kew Gardens Herbarium (K000449169).
Individual evidence
- ↑ Carl Ludwig von Blume: Museum botanicum Lugduno-Batavum, sive, Stirpium exoticarum novarum vel minus cognitarum ex vivis aut siccis brevis expositio et descriptio EJ Brill, Lugduni-Batavorum / Leiden, 1849. Online at Biodiversity Heritage Library , p. 45.
- ↑ Kew Science Plants of the World online: Hoya vitellina flower
- ^ 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 (pp. 152, 160).
- ↑ Hoya fuscomarginata NEBrow Synonym of Hoya vitellina flower
- ↑ Michele Rodda: Index of names and types of Hoya (Apocynaceae: Asclepiadoideae) of Borneo. Gardens' Bulletin Singapore 69 (1): 33-65. 2017 doi : 10.3850 / S2010098116000039
- ^ Nicholas Edward Brown: Plantarum Novarum in Herbario Horti Regii, Conservatarum. Bulletin of Miscellaneous Information, 1910: 275-280, 1910 Online at Biodiversity Heritage Library , p. 278