Cuscuta colombiana
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| Cuscuta colombiana | ||||||||||||
| Yunck. |
Cuscuta colombiana is a parasitic living plants art from the genus silk in the family of wind plants (Convolvulaceae). The species is native to Colombia .
description
The stems of Cuscuta colombiana are slender, withering and eventually disappearing except for the inflorescences . The inflorescences are tuft-forming, paniculate cymes . These tufts reach a diameter of about 3 to 4 cm. The flowers are more or less fleshy, about 1.5 mm long, the flower stalks are often longer than the flowers.
The calyx is covered with ovate-lanceolate to elongated calyx lobes, towards the front they are pointed and more or less unclearly shaped. The crown is bell-shaped, papillary at the base and covered with ovate-lanceolate and pointed lobes. Due to the protruding sepals and the cup-shaped crown, the leaves are reminiscent of a cup with a saucer. The stamens reach roughly to the tip of the corolla lobes. Between the stamens there are small, elongated to spatula-shaped, fringed scales. The stylus is elongated and sits on a spherical ovary .
The fruits are pressed in, spherical capsules that pop open through a ring crack.
Occurrence
The species is native to Colombia and can be found there in the Magdalena Department . The type location is dry grassland and is 300 m above sea level.
Systematics
Cuscuta colombiana is classified within the genus silk ( Cuscuta ) in the subgenus Grammica .
literature
- Truman George Yuncker: Nomenclatural Notes and a new Species of Cuscuta . In: Bulletin of the Torrey Botanical Club , Volume 73, Number 6, Nov. 1946. pp. 570-571.
- Saša Stefanović and Mihai Costea: Reticulate evolution in the parasitic genus Cuscuta (Convolvulaceae): over and over again (PDF; 1 MB). In: Botany , Volume 86, 2008. pp. 791-808.