Selenicereus innesii Kimnach 1982

Plants climbing to sprawling, intricately branched, lithophytic. Stems smooth, shiny green, white dotted, 1.2 cm (0.5 in) in diameter. Ribs 6, obtuse, with prominent tubercles. Areoles borne on tubercles, with white wool and spines. Spines bulbous basally, 1-2 mm long. Central spines 1-2, awl shaped, yellowish brown. Radial spines 3-7, needle-like, thin, whitish. Flowers sometimes unisexual, pinkish white or cream, 4-4.5 cm (1.6-1.8 in) long; pericarpels with abundant hairs and spines; floral tube essentially absent. Distribution: Lesser Antilles. Kimnach described Selenicereus innesii as "an aberrant new species."

Selenicereus macdonaldiae (W. J. Hooker) Britton & Rose 1909

Cereus macdonaldiae W. J. Hooker 1853

Cereus rothii Weingart 1922, Selenicereus rothii (Weingart) A. Berger 1929

Plants trailing or climbing, to 8 m (26 ft) long. Stems glossy green, often with purple tinge, to 1-1.5 cm (0.4-0.6 in) in diameter. Ribs 5-7 with prominent flattened tubercles 2-3 mm high. Areoles brown. Spines few, to 2 mm long. Flowers white or pale cream, 30-36 cm (12-14 in) long, 22-26 cm (8.7-10 in) in diameter; pericarpels and floral tubes with bracts, hairs, and spines. Fruits oblong, to 8 cm (3.1 in) long. Distribution: Honduras and Uruguay.

Continue reading here: Selenicereus megalanthus K Schumann ex Vaupel

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