Ceropegia cataphyllaris
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| Bullock |
Ceropegia cataphyllaris is a species of the subfamily of the silk plant family (Asclepiadoideae). It only occurs in Zambia .
description
Appearance and leaf
Ceropegia cataphyllaris is a perennial herbaceous plant . Root tubers are formed as persistence organs , which are spherical with a diameter of 1.5 to 2.5 centimeters. The bare, unbranched shoot axes that sprout annually measure about 1 millimeter in cross section and reach heights of 15 to 30 centimeters. The leaves are sessile and upright. The leaf blades are narrowly lanceolate to needle-like and 2 to 30 millimeters long and 0.3 to 0.7 millimeters wide. Their length increases from bottom to top on the stem axis. The leaf margins are bent.
Inflorescence and flower
The single-flowered inflorescence sits near the tip of the shoot. The flower stalk is thin and 1.5 to 2 inches long. The hermaphrodite flowers are zygomorphic and five-fold with a double flower envelope . The five reddish sepals are linear-sub-like and 2 millimeters long. The corolla is 3 to 3.5 inches long. The five petals are fused in the lower area to form a slender, straight corolla tube ( sympetalie ) smooth on the outside . The upright, whitish corolla tube is inflated in the lower part to an inverted egg-shaped 7 millimeter long and 5 millimeter wide "crown bowl". The actual crown tube decreases above the "crown bowl" to 2 to 3 millimeters in diameter; it hardly widens towards the mouth of the flower. The brownish tips of the petals are linearly shaped and 20 millimeters long, with a width of only 1 millimeter. They are folded outwards along the longitudinal axis and fused with the ends; they thus form an ellipsoidal, cage-like structure. The secondary crown (corona) is sessile, whitish, transparent and has a cup-shaped base. The tips of the interstaminal, outer secondary crown are cut very deeply in the middle and form two linear, 1 millimeter long extensions, on each of which there are one or two whitish hairs. The tips of the staminal, inner secondary crown are linear-sub-shaped, 1.5 to 2 millimeters long, initially standing upright, then sloping together; the tips are then bent back a little.
Fruit and seeds
So far there is no information on fruits and seeds.
Similar species
Ceropegia cataphyllaris is similar to Ceropegia illegitima from Zaire , but has fleshy roots instead of a tuber. This species also has red flowers and a reduced interstaminal corolla.
distribution
The range of Ceropegia cataphyllaris is limited to Zambia .
Taxonomy
The first description of Ceropegia cataphyllaris was made in 1956 by Arthur Allman Bullock in the 10th volume of the Kew Bulletin on page 625. The ribbon bears the date 1955, but was not published until 1956. A synonym for Ceropegia cataphyllaris Bullock is Ceropegia filiformis EABruce; an invalid, since preoccupied species name according to Art. 53.1 of the International Code of Nomenclature for Algae, Fungi and Plants .
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. 70)
Individual evidence
- ↑ Arthur Allman Bullock: Notes on African Asclepiadaceae VII. In: Kew Bulletin , Volume 10, 1955 [1956], pp. 611–626, London Online at JSTOR (p. 625)
- ↑ Ceropegia cataphyllaris in the International Plant Names Index
- ↑ Eileen Adelaide Bruce: Ceropegia filiformis EABruce, sp. nov. (Asclepiadaceae). In: Kew Bulletin , Volume 3, Part 3, London 1948, p. 463. Online at JSTOR
- ↑ Ulrich Meve: Ceropegia Checklist. A guide to alternative names used in recent Ceropegia classification. In: Dennis de Kock, Ulrich Meve: A Checklist of Brachystelma, Ceropegia and the genera of the Stapeliads. International Asclepiad Society 2007, pp. 83-113.