CORYPHANTHA-HOMEPAGE
Subgenus Neocoryphantha Backeberg
This subgenus is characterised by the presence of glands, usually in the tubercle-grooves or in the axils. These nectary-glands are red, orange or yellow and secrete a viscous sap with a high sugar-content. This sap serves the attiration of aunts which play an important rule in distributing the seeds of these Coryphanthas. Moreover the species of this series show a viscous, slimy sap when cur. In culture they are often attacke by suity-moulds, which leads to ugly black-colouring of the epidermis.
Typical red glands in the tubercle-grooves of C.robustispina ssp. scheeri