Cypselea
| Cypselea | ||||||||||||
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Cypselea humifusa |
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| Scientific name | ||||||||||||
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| Turpin |
Cypselea is a plant kind from the family of aizoaceae (Aizoaceae). The botanical name of the genus is derived from the Greek word κνψελη (kypsele) for 'beehive' and refers to the shape of the fruit capsules.
description
The species of the genus Cypselea are annual to perennial herbaceous plants with generally prostrate, sometimes creeping branches of up to 8 centimeters in length. A taproot of up to 4 millimeters in diameter with fibrous roots is formed. The branching is sympodial . The above-ground parts of the plant are bare. The opposite leaves are petiolate. The bald, flat leaf blades are obovate to elliptical with smooth leaf margins and those of a pair are different. The two lacinate to lean stipules a pair differ significantly in their size, they are fused together and wrap the leaf base.
The individual flowers appear terminal, but are surmounted by one of the side shoots. There are foliage-like bracts and dry-skinned, frayed bracts. The inconspicuous flowers have a diameter of 2 to 3 mm. The four to five tepals are fused to one another at their base and have no elongated appendages at their tips. The two to five stamens are arranged alternitepal. Usually two carpels are a medium-sized, egg-shaped to spherical ovary grown, which during the flowering period is significantly chambered. There are two styluses.
The capsule fruits, which tear open in a ring, contain numerous, about 150, more or less kidney-shaped, brown seeds . The narrow aril remains on the placenta.
Systematics and distribution
The genus Cypselea is found in the Antilles , the Bahamas , Cuba , Paraguay and the United States in the states of California , Florida and Louisiana . The species grow on drying marshland, in disturbed, humid locations along the coasts and sandy pine land.
It was first described in 1806 by Pierre Jean François Turpin . The genus Cypselea belongs to the subfamily Sesuvioideae within the afternoon flower family . The type species is Cypselea humifusa . A synonym is Radiana Raf.
According to Heidrun Hartmann (* 1942) the genus Cypselea includes the following species:
- Cypselea humifusa Turpin : It occurs in Arizona, California, Florida, Louisiana, Mississippi, Nevada, on islands in the Caribbean and in South America.
- Cypselea meziana K. Garbage.
- Cypselea rubriflora Urb.
proof
literature
- Heidrun EK Hartmann (Ed.): Illustrated Handbook of Succulent Plants: Aizoaceae AE . Springer Verlag, Berlin / Heidelberg / New York 2001, ISBN 3-540-41691-9 , pp. 181 .
- Wayne R. Ferren Jr .: Cypselea . In: Flora of North America . Volume 4, 2003, p. 82, (online) . (Section description, systematics and dissemination)
Individual evidence
- ^ Annales du Museum National d'Histoire Naturelle . Paris 1806, Volume 7, p. 219, Plate 12, (online) .
- ↑ Heidrun EK Hartmann (Ed.): Illustrated Handbook of Succulent Plants: Aizoaceae AE . Springer Verlag, Berlin / Heidelberg / New York 2001, ISBN 3-540-41691-9 , pp. 181-182 .
- ^ Wayne R. Ferren Jr .: Cypselea Turpin. In: Flora of North America, vol. 4. [1] .
Web links
- Wayne R. Ferren Jr .: Cypselea , In: Datasheet at The Jepson Manual .