Cuscuta palaestina
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Cuscuta palaestina in Cyprus |
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| Boiss. |
Cuscuta palaestina is a plant from the genus silk ( Cuscuta ) in the family of wind plants (Convolvulaceae). Like all species in this genus, it is a full parasite .
description
Vegetative characteristics
Cuscuta palaestina is an herbaceous plant . The very thin, mostly red stem is heavily branched.
Generative characteristics
The sessile flowers sit in spherical clusters with a diameter of 4 to 6 mm. The flowers are about 1.5 to 2 mm in size and usually four-fold, rarely three-fold and individual flowers in a ball can also be five-fold. The calyx is usually reddish in color and about as long as the corolla tube. The calyx lobes are triangular, as long as wide or slightly wider, pointed, somewhat fleshy and keeled. The corolla lobes are usually upright, as long as the cylindrical corolla tube, pointed and often with hooded tips. The anthers barely protrude beyond the crown, the scales between the stamens usually reach the stamens. The stylus is including scars in about as long as the ovary .
The capsule fruits are spherical and are surrounded by the remains of the crown. The seeds have a length of 1 mm.
Occurrence and ecology
Cuscuta palaestina occurs from Sicily and the eastern Mediterranean to western Iran .
Cuscuta palaestina parasitizes mostly on dwarf shrubs of the Batha and other regional forms of the Garidae such as the thorny beaverelle ( Poterium spinosum ), but occasionally also on larger shrubs and on annual plants .
Systematics
The first description of Cuscuta palaestina was in 1848 by Pierre Edmond Boissier .
Some authors differentiate between two varieties:
- Cuscuta palaestina Boiss. var. palaestina
- Cuscuta palaestina var. Syriana Yunck. : In this variety, the calyx is deeper divided with pointed to pointed tips and an indistinct hood tip. The crown is membranous. It is at least the predominant form of this species in Syria and Lebanon . It is also given for Palestine , but could not be found in a taxonomic study of the genus Cuscuta Palestine.
literature
- Naomi Feinbrun: Cuscuta. In: TG Tutin, VH Heywood, NA Burges, DM Moore, DH Valentine, SM Walters, DA Webb (eds.): Flora Europaea . Volume 3: Diapensiaceae to Myoporaceae . Cambridge University Press, Cambridge 1972, ISBN 0-521-08489-X , pp. 76 (English, limited preview in Google Book search).
Individual evidence
- ↑ a b c Rafaël Govaerts (Ed.): Cuscuta palaestina. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved February 4, 2016.
- ↑ a b Naomi Feinbrun, Sarah Taub: The Cuscuta species of Palestine. In: Israel Journal of Botany. Volume 13, No. 1, 1964, pp. 1-23.
- ↑ Pierre-Edmond Boissier: Diagnoses Plantarum Orientalium novarum. Volume 11. Ducloux, Paris 1849, p. 86 (online).
- ↑ a b Truman George Yucker: The genus Cuscuta. In: Memoirs of the Torrey Botanical Club. Volume 18, No. 2, 1932, S: 280 ( online ).
- ^ Paul Mouterde: Nouvelle Flore du Liban et de la Syrie. Texts. Edited posthumously by André Charpin, Werner Greuter. Volume 3 (Ericaceae - Compositae), Delivery 1, Dar el-Machreq, Beirut 1978, ISBN 2-7214-5807-8 , p. 46.
