Leptocereus
Leptocereus assurgens
Leptocereus is a genus in the cactus family ( Cactaceae ). The botanical name derives from the Greek adjective " λεπτός " ( leptos ) for thin ' and refers to the thin ribs of the plants.
Description
The species of the genus Leptocereus growing tree similar to bushy, upright, climbing up stretched out and achieve a growth rate of 8 to 10 feet. The cylindrical usually shoots are broken and do not form aerial roots from. The tall, thin 3-8 ribs have sometimes notched edges. From the areoles permanent spring, needle-like, slender spines.
The rather small flowers appear singly or in groups below the shoot tip or from a terminal cephalium. They are tube-like, bell-shaped or salver -shaped and open on the day or at night. Your Perikarpell and the corolla tube are occupied usually with scales and spines. The spherical to elliptical, fleshy fruits are usually spiny and fall off when they are ripe. They contain numerous black seeds.
Systematics and distribution
Leptocereus is common on the Caribbean islands of Cuba, Hispaniola, Puerto Rico and Culebra.
Alwin Berger presented Leptocereus 1905 as a subgenus of Cereus ( Cereus subg. Leptocereus ) on. Nathaniel Lord Britton and Joseph Nelson Rose raised the subgenus then in 1909 to the rank of genus. The type species of the genus Cereus assurgens.
A comprehensive study of the genus has Alberto E. Areces Mallea made in his doctoral thesis in 2003. Belong to the genus of the following types:
- Leptocereus arboreus
- Leptocereus assurgens
- Leptocereus carinatus
- Leptocereus ekmanii
- Leptocereus grantianus
- Leptocereus leonii
- Leptocereus maxonii
- Leptocereus paniculatus
- Leptocereus prostratus
- Leptocereus quadricostatus
- Leptocereus santa marinae
- Leptocereus scopulophilus
- Leptocereus sylvestris
- Leptocereus weingartianus
- Leptocereus wrightii
A synonym of the genus is Neoabbottia Britton & Rose ( 1921).