Ceropegia campanulata
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| G.Don |
Ceropegia campanulata is a species of the subfamily of the silk plants (Asclepiadoideae).
description
Appearance and leaf
Ceropegia campanulata is a perennial , herbaceous plant . Flattened root tubers are formed as persistence organs . The upright, non-twisting shoot axes are annual and reach heights of 10 to 25 cm. They are unbranched and only sparsely hairy. The leaves are divided into a petiole and a leaf blade. The petiole is 5 mm long. The fleshy leaf blades are 50 to 70 mm long and 6 mm wide and lanceolate to linear and pointed. The upper side of the leaf is sparsely hairy.
Inflorescence and flower
The sessile inflorescence is terminal or grows laterally from the stem axes. The hermaphrodite flowers are zygomorphic and five-fold with a double flower envelope . The corolla is 4 to 13 cm long. The five petals are fused in the basal three quarters to a straight corolla tube ( sympetalie ). The corolla tube is finely hairy on the outside or glabrous and brownish-purple in color. The spherically inflated "crown bowl" has a diameter of 7 to 18 mm and merges continuously into the actual crown tube. The inside is covered with purple hair. The corolla tube has a minimum diameter of 4 mm and widens towards the mouth of the flower to 12 mm in diameter. The funnel-shaped mouth is covered with purple hairs on the inside. The upright and straight corolla lobes are linear to thread-shaped with a length of 1.5 to 6 cm and at the tips they are fused together and thus form a cage-like structure. The edges are turned outwards, the insides are hairy. The sessile corolla is basal and cup-shaped. The finely hairy tips of the interstaminal , outer secondary crown are initially horizontally then ascending and end in two narrow triangular to linear processes. The tips of the staminal , inner secondary crown are linear, initially standing upright, then bending over the gynostegium in order to bend back slightly towards the tips.
Fruit and seeds
No information is available on fruits and seeds.
Similar species
Ceropegia campanulata is closely related to Ceropegia insignis .
distribution
Ceropegia campanulata occurs in Equatorial Guinea , Ivory Coast , Ghana , Mali , Nigeria , the Central African Republic, Uganda and Togo .
Systematics and taxonomy
The first description of Ceropegia campanulata was in 1838 by George Don jun. Synonyms Ceropegia campanulata G.Don are (after Meve): Ceropegia kerstingii K.Schumann , Ceropegia dalzielii N.E.Brown , Ceropegia abinsica N.E.Brown , Ceropegia campanulata var. Abinsica (NEBrown) H.Huber , Ceropegia tamalensis W.W.Smith , Ceropegia hepburnii Hutch. & Dalziel .
Two varieties can be distinguished:
- Ceropegia campanulata var. Campanulata
- Ceropegia campanulata var. Pulchella H. Huber : It occurs only in Uganda.
supporting documents
literature
- Ulrich Meve: Ceropegia . In: Focke Albers, Ulrich Meve (Hrsg.): Succulents Lexicon Volume 3 Asclepiadaceae (silk plants). Pp. 61–107, Eugen Ulmer Verlag, Stuttgart 2002. ISBN 3-8001-3982-0 (p. 69)
- Herbert FJ Huber : Revision of the genus Ceropegia. In: Memórias da Sociedade Broteriana , Volume 12, 1957, pp. 1–203, Coimbra (p. 129)
Individual evidence
- ↑ a b c Rafaël Govaerts (Ed.): Ceropegia - World Checklist of Selected Plant Families of the Royal Botanic Gardens, Kew. Last accessed on November 11, 2018.
- ↑ George Don: A General History of the Dichlamydeous Plants: Comprising Complete Descriptions of the Different Orders ... The whole arranged according to the natural system. Vol. 4: Corolliflorae. VIII, 908 S., London, Rivington, 1838 Scanned at www.biodiversitylibrary.org