Prometheum
Prometheum chrysanthum
Prometheum is a genus of flowering plants in the family Crassulaceae ( Crassulaceae ). The botanical name of the genus is derived from Prometheus, who is said to have brought the people according to Greek mythology the fire. Some authors. pilosum refer to the blood-red flowers of Prometheum. But Alwin Berger, the author of the name rather thought in mind that these types - like Prometheus - " forged " to rock in the Caucasus are.
Description
The species of the genus Prometheum are perennial or annual to biannual hapaxanthe herbaceous plants that are dense and finely glandular - pubescent usually. Your dense rosettes are flattened - spherical, alternate arranged with seated, succulent foliage leaves that are flat to semi- terete and oblong to obovate - spatulate.
The terminal or lateral, usually strong inflorescence is up to 25 centimeters long, is zymös or ebensträußig and consists of two to many, sometimes forked, coiling. Each of the short -stalked, five-fold flower has a tiny usually bract. The sepals are wide sitting. The yellow, creamy white, pink or red petals are fused together to less than half its length. The corolla lobes are spread to almost upright.
The fruit is a follicle. The seeds contained therein are oblong- ovate and ribbed.
Systematics and distribution
The genus Prometheum is spread in northern Greece, in Turkey, in Armenia, the Caucasus and northern Iran in usually high altitudes. After Henk 't Hart (1944-2000) is the genus of the species Prometheum:
- Prometheum aizoon ( Fenzl ) 't Hart
- Prometheum chrysanthum ( Boiss. ) 't Hart
- Prometheum muratdaghense (Kit Tan ) 't Hart
- Prometheum pilosum (M. Bieb. ) H. Ohba
- Prometheum rechingeri ( C.-A. Jansson ) 't Hart
- Prometheum sempervivoides (M. Bieb. ) H. Ohba
- Prometheum serpentinicum ( Werderm. ) 't Hart, with the varieties: Prometheum serpentinicum var giganteum ( Eggli ) 't Hart
- Prometheum serpentinicum var serpentinicum