Stephanocereus
Stephanocereus is a genus of flowering plants of the cactus family ( Cactaceae ). The botanical name of the genus derives from the Greek noun " στέφανος " ( stephanos ) for wreath from means Wreath Cereus and refers to the coronary cephalium at the shoot tips. The type species of the genus is Stephanocereus leucostele.
Description
The species of the genus Stephanocereus sometimes grow like a tree, are not branched or occasionally drive out of the base. You reach a stature height of 1 to 5 meters. The initially spherical or egg-shaped knobs are later extended to columnar to bottle-shaped. The 12 to 20, low ribs bear areoles from which abundant white wool springs that cover the engine. The 1-4 central spines are white to gold and 3-4 inches long. The yellow to white, 15 to 20 radial spines are 0.5 to 1.5 inches long. The cephalium located on the shoot tip or ring-like manner. It consists of dense bristles, white wool and hair.
The tube- to funnel- shaped flowers are white to pink light and sometimes 2.6 to 7 inches long. They open at night. The Perikarpell and the flower tube have some scattered small shed and bald or little white bewollte areoles.
The oval to elliptical, bare, not aufreißenden fruits are blue to purple something green. The long-lasting flowers rest is black. The flesh is water-clear. The large, oval to pear- shaped seeds are black and tuberculate.
Distribution and systematics
The genus Stephanocereus is widespread in the Brazilian state of Bahia.
The first description was in 1926 by Alwin Berger. The type species of the genus is Stephanocereus leucostele. The genus includes two species:
- Stephanocereus leucostele
- Stephanocereus luetzelburgii
A synonym of the genus is Lagenosocereus Doweld ( 2002).