Plants freely branching epiphytes. Secondary stems arising basally or laterally from primary stems, round in cross section basally, flattened apically, linear, to 50 cm (20 in) or more long, 3-5 cm (1.2-2 in) wide, marginally toothed with protruding lobes, with prominent midribs. Areoles with spines only on primary stems, becoming protruding and prominent on older stems. Flowers borne singly on apical portion of stems, funnelform, open at night but remaining open into the next day or two, 9-12 cm (3.5-4.7 in) long, 5-10 cm (2-3.9 in) in diameter; outer perianth parts yellowish red to orange, inner light yellow. Fruits ovoid to oblong, shiny red, 2-2.3 cm (0.8-0.9 in) long. Distribution: Loreto, Peru.
Epiphyllum grandilobum (F. A. C. Weber) Britton & Rose 1913
Phyllocactus grandilobus F. A. C. Weber 1902 Epiphyllumgigas Woodson & Cutak 1958
Plants often forming vines to 100 m (330 ft) or more long. Stems quick growing, profusely rooting, 3-5 cm (1.2-2 in) wide, grading into portions 15-25 cm (5.9-9.8 in) wide, reddish at first, becoming green, branching irregularly, with prominent midribs, often becoming woody, marginally undulate and with oblique lobes. Flowers borne laterally, tubular funnelform; floral tubes long and curved, 32-38 cm (13-15 in) long; outer perianth parts greenish yellow, inner cream colored and translucent. Distribution: Costa Rica and Panama.
Epiphyllum guatemalense Britton & Rose 1913 Phyllocactusguatemalensis (Britton & Rose) Vaupel 1913, Epiphyllum phyllanthus var. guatemalense (Britton & Rose) Kimnach 1964
Plants bushy with stiff, arching to pendent branches. Stems round in cross section basally, three-angled for 50 cm (20 in) or more, then flattened to 75 cm (30 in) or more, 6-9 cm (2.4-3.5 in) wide. Areoles to 5 cm (2 in) apart. Flowers sal-verform, straight to strongly curved, white, 20-26 cm (7.9-10 in) long, 20-23 cm (7.9-9.1 in) in diameter. Fruits
Epiphyllum crenatum var. crenatum, photograph by Roy Mottram
Epiphyllum oxypetalum 289
ellipsoidal to ovoid, purplish red, smooth, to 8 cm (3.1 in) long and 3.5 cm (1.4 in) in diameter. Distribution: Mexico, Guatemala, and Honduras.
Epiphyllum hookeri (Link & Otto) Haworth 1829 Cereus hookeri Unk & Otto 1828, Phyllocactus hookeri (Link & Otto) Salm-Dyck 1842, Epiphyllum phyllanthus var. hookeri (Link & Otto) Kimnach 1964
Phyllocactus stenopetalus Förster 1846, Epiphyllum stenopetalum
(Förster) Britton & Rose 1913 Phyllocactus strictus Lemaire 1854, Epiphyllum strictum (Lemaire) Britton & Rose 1913
Plants bushy with stiff, arching to pendent branches. Stems strongly three-angled basally, then flattened to 75 cm (30 in) or more, 9-10 cm (3.5-3.9 in) wide. Areoles to 5 cm (2 in) apart. Flowers salverform, straight to strongly curved, white, 17-23 cm (6.7-9.1 in) long, 3-3.5 cm (1.2-1.4 in) in diameter. Fruits ellipsoidal to ovoid, purplish red, smooth, 4-7 cm (1.6-2.8 in) long, to 3.5 cm (1.4 in) in diameter. Distribution: Mexico, Guatemala, Honduras, Belize, Nicaragua, El Salvador, Costa Rica, Cuba, Trinidad, Tobago, and Venezuela.
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