Harrisia aboriginum Small 1920

ABORIGINAL PRICKLY APPLE, YELLOW PRICKLY APPLE Cereus aboriginus (Small) Little 1945, C. gracilis var. aboriginum (Small) L. D. Benson 1969

Plants erect to reclining, to 6 m (20 ft) high. Stems simple or branching. Ribs 9-11, rounded. Spines 7-9, needle-like, pink at first, becoming gray with age, to 1 cm (0.4 in) long. Flowers slightly scented, to 15 cm (5.9 in) long; floral tubes with stiff brown hairs. Fruits globose, yellow, 6-7.5 cm (2.4-3 in) in diameter. Distribution: Tampa Bay to Lee County, Florida.

Harrisia adscendens (Gürke) Britton & Rose 1920 Cereus adscendens Gürke 1908, Eriocereus adscendens (Gürke) A. Berger 1929

Plants shrubby, much branched, erect at first, later arching and clambering, usually with distinct trunks. Stems 5-8 m

Harrisia earlei 371

(16-26 fit) long, 2-5 cm (0.8-2 in) in diameter. Ribs 7-10, low, rounded, forming elongated tubercles. Areoles large, round. Spines 4-10, stout, yellowish to grayish, with darker tips, thickened basally, 1-3 cm (0.4-1.2 in) long. Flowers 1518 cm (5.9-7.1 in) long; pericarpels and floral tubes with scales and long hairs. Fruits red, globose, tuberculate, spineless, dehiscent, 5-6 cm (2-2.4 in) in diameter. Distribution: Bahia, Brazil.

Harrisia balansae (K. Schumann) N. P. Taylor & Zappi 1997 Cereus balansae K. Schumann 1890

Cereus guelichii Spegazzini 1905, Harrisia guelichii (Spegazzini) Britton & Rose 1920, Eriocereusguelichii (Spegazzini) A. Berger 1929

Plants clambering and climbing, often branched, to 25 m (82 ft) long. Stems to 5 cm (2 in) in diameter, three- or four-angled with flat sides, angles acute and wavy. Central spine one, stout, to 25 mm (1 in) long. Radial spines 4-5,4-5 mm long. Flowers 20-25 cm (7.9-9.8 in) long; pericarpels and floral tubes nearly without wool but with large scales. Fruits globose, red, strongly tuberculate, spineless, edible, 4-4.5 cm (1.6-1.8 in) in diameter. Distribution: Gran Chaco region of Argentina.

Harrisia brookii Britton 1908 Cereus brookii (Britton) Vaupel 1913

Plants much branched shrubs to 5 m (16 ft) high. Stems light green, 3-4 cm (1.2-1.6 in) in diameter. Ribs 10, prominent, with deep depressions between. Spines 9-12, brown to white, to 2.5 cm (1 in) long. Fruits ellipsoidal to globose, yellowish, to 8 cm (3.1 in) in diameter, with low tubercles and persistent scales. Distribution: Bahamas.

Harrisia divaricata (Lamarck) Backeberg 1960 Cactus divaricatus Lamarck 1783

Cereus serruliflorus Haworth 1830, Harrisia serruliflora (Haworth) Lourteig 1991

Plants shrubby, erect, much branched. Stems slender. Ribs 9,

Harrisia balansae, photograph by Roberto Kiesling obtuse. Central spines 4, brown, 2-2.5 cm (0.8-1 in) long. Radial spines 8-10, white. Flowers large. Fruits globose, yellow. Distribution: Hispaniola. Harrisia divaricata is poorly known.

Harrisia earlei Britton & Rose 1920

Plants prostrate shrubs. Stems dark green, 2-3 m (6.6-9.8 ft) long, 2-6 cm (0.8-2.4 in) in diameter. Ribs 5-7, making stems angled. Spines 5-8, gray, needle-like, ascending, 4-5 cm (1.6-2 in) long. Flowers to 20 cm (7.9 in) long. Fruits depressed globose, yellow, tuberculate at first, later smooth, 6-7 cm (2.4-2.8 in) in diameter. Distribution: Cuba. Harrisia earlei is poorly known.

Harrisia adscendens, photograph by Urs Eggli

Harrisia balansae, photograph by Roberto Kiesling

Harrisia adscendens, photograph by Urs Eggli

Harrisia brookii

Harrisia brookii

372 Harrisia eriophora

Harrisia eriophora (Pfeiffer) Britton 1908

FRAGRANT PRICKLY APPLE Cereus eriophorus Pfeiffer 1837

Plants shrubby, often forming dense clumps with erect, arching, or clambering stems, 3-5 m (9.8-16 ft) high. Stems bright green when young, darker with age, to 4 cm (1.6 in) or more in diameter. Ribs 8-12, prominent, with deep depressions between. Spines 6-13, light brown, gray, or yellow, with darker tips, ne<?dle-like, 2-4 cm (0.8-1.6 in) long. Flowers 12-18 cm (4.7-7.1 in) long; floral tubes with few scales but with long white hairs. Fruits obovoid to globose, yellow to dull red, edible, to 6 cm (2.4 in) in diameter. Distribution: Florida and Cuba.

Continue reading here: Harrisia fragrans Small 1920

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