Arthrocereus
Arthrocereus is a genus of flowering plants of the cactus family ( Cactaceae ). The botanical name of the genus derives from the Greek noun " αρθρον " ( Arthron ) limb from limb and means Cereus.
Description
The relative small, bushy, upright or lengthwise prostrate -growing species of the genus Arthrocereus are branched or unbranched. The articulated cylindrical shoots have 10 to 18 low and narrow ridges on which small areoles sitting from which spring many thin thorns.
The bell-shaped extended, wide-opening flowers appear near the shoot tip and open at night. The flower cups and the corolla tube are occupied with wool, hair-like spines and a few pointed scales.
The spherical or pear-shaped fruits are green runs and have a white flesh. They are thin-walled, not tearing up and have dandruff and hair-like thorns. The wrong egg-shaped seeds are black.
Systematics and distribution
The species of the genus Arthrocereus are widespread in the western and south-eastern Brazil.
The first description of the genus was made in 1929 by Alwin Berger. A proposal by Nigel Paul Taylor following, was designated the " Cereus damazioi " titled photograph showing Cereus glaziovii conserved as the type of the genus.
Belong to the genus of the following types:
- Arthrocereus glaziovii
- Arthrocereus melanurus Arthrocereus melanurus subsp. melanurus
- Arthrocereus melanurus subsp. magnus
- Arthrocereus melanurus subsp. odorus