Autor: Backeberg • DESCRIPTION A genus of treelike plants, reaching up to 5 m high, densely branched, candelabriform. Stems light green to yellowishgreen, with 7-12 ribs more or less sinuous, triangular, areoles situated in a depression. Radial spines few (3-8), central spines often absent. Flowers diurnal, remaining open at night, self-sterile, tubular funnelform to bell-shaped, nectariferous,…
Autor: Byles & Rowley • ETYMOLOGY “Hairy Cereus”, referring to the abundant pilosity of the pseudocephalium that most species of the genus carry. • DESCRIPTION A genus of columnar shrubby or treelike plants, usually strongly branched, candelabriform, reaching up to 10 m high, with stems containing mucilage; epidermis usually smooth, grey-green to bluish more or less…
Autor: E.Esteves Pereira • ETYMOLOGY Genus honouring Pierre Josef Braun (1959-), German botanist and specialist of the Brazilian cacti. • DESCRIPTION A genus of usually solitary plants, subglobose becoming elongated (columnar and weakly branched in P. brauniorum), erect or bent, not constricted. Stems with 10-17 ribs (4-5 in P. brauniorum). Epidermis finely granular in P. brauniorum….
Autor: Salm-Dyck • ETYMOLOGY Genus honouring Ludwig G.K. Pfeiffer (1805-1877), German doctor, botanist, physicist and malacologist, author of Enumeratio Cactearum (see portrait above, public domain). • DESCRIPTION A genus of mainly epiphytic, epilithic or terrestrial plants, erect to pendulous, with branched stems, segments of indeterminate size, branching in the middle (mesotony) of stems, which are variable,…
Autor: Britton & Rose • ETYMOLOGY “Similar to Pereskia”, because of the apparent similarity of this genus with Pereskia. • DESCRIPTION A genus of shrubby to treelike plants, irregularly branched with branches more or less ascending, sometimes from the base, sometimes with a defined trunk and bark on adult plants. Stems cylindrical, not segmented, with leaves…