Autor: Engelmann • DESCRIPTION A genus of low bushy plants, solitary or branched, sometimes forming dense cushions, prostrate or erect, globose or cylindrical, ribbed, with fibrous or tuberous roots. Spines more or less robust, highly variable in size and shape. Flowers diurnal, small to rather large, self sterile, funnel-shaped, often brightly coloured, pink, magenta, red purple,…
Autor: Link & Otto • ETYMOLOGY “Sea-urchin cactus, hedgehog cactus”, referring to the globular shape of the genus, covered with stout spines. • DESCRIPTION A genus of globose to shortly columnar plants, flattened at the apex, solitary or densely branched. Stems with numerous ribs (up to 60), apex densely covered with wool. Large areoles, usually elongated,…
Autor: Lindley • ETYMOLOGY “Double Cactus” because the inner and outer segments of the flowers of this genus have an equal length. • DESCRIPTION A genus of epiphytic or lithophytic plants, ribbed or flattened stems (phylloclades). Spines setose or absent, areoles often numerous. Flowers usually diurnal, self-sterile and pollinated by hummingbirds (except D. macranthus?), rather large,…
Autor: Pfeiffer • ETYMOLOGY “Cactus-disc”, referring to the flat-round disc-shape of some species in the genus, when they were first described. • DESCRIPTION A genus of low-growing plants generally solitary, globose, more or less flattened, with numerous tuberculate ribs, with areoles covered by spines. Usually, spines are robust, often flattened at the base and curved. Apical…
Autor: Britton & Rose • ETYMOLOGY The name is an anagram of Mendoza, in Argentina, the province where the genus was first found. • DESCRIPTION Monotypic genus of plants generally solitary (branching from the base only very rarely), at first globose, becoming columnar, with numerous ribs (up to 30), areoles very close. Spines highly polymorphic, especially…