Echinomastus erectocentrus j m Coulter Britton Rose 1922

acuna cactus, needle-spine pineapple cactus, pineapple cactus, purple-spined viznagita, red pineapple cactus Echinocactus erectocentrus J. M. Coulter 1896, Neolloydia erectocen-tra (J. M. Coulter) l. d. Benson 1969, Sclerocactus erectocentrus (J. M. Coulter) N. P. Taylor 1987, Pediocactus erectocentrus (J. M. Coulter) Halda 1998 Echinocactus krausli Hildmann 1896, Echinomastus krausii (Hild-

mann) Borg 1937 Echinomastus acunensis W. T. Marshall 1953, E. erectocentrus var. acunensis (W. T. Marshall) Bravo 1980

Plants solitary, ovoid to somewhat cylindrical, bluish green, 10-37 cm (3.9-15 in) high, 7.5-12 cm (3-4.7 in) in diameter, heavily covered by spines. Ribs 15-21 with the tubercles sharply divided by indentations. Tubercles nipple-like, 6-12 mm (0.2-0.5 in) high. Central spines 1-4, yellowish to purplish and dark tipped, round, straight, or slightly curving, 1.2-3.5 cm (0.5-1.4 in) long, uppermost one pointed upward, lowermost ones downward. Radial spines 11-15, yellowish, straight, round, 1.2-2.5 cm (0.5-1 in) long, somewhat pectinate. Flowers short funnelform, pink to orange-pink, 2-5 cm (0.8-2 in) long, 3.8-5 cm (1.5-2 in) in diameter. Fruits green, drying to brown, dehiscing by slits, to 1 cm (0.4 in) long. Distribution: southern Arizona. Echinomastus erec-tocentrus is listed in Appendix I of cites.

Echinomastus gautii (L. D. Benson) Mosco & Zanovello

1997

Neoiloydia gautii L. D. Benson 1974, Turbinicarpus gautii (L. D. Benson) A. D.Zimmerman 1991, Pediocactus gautii (L. D. Benson) Halda

1998

Plants solitary, 7-8 cm (2.8-3.1 in) high, 5-6 cm (2-2.4 in) in diameter. Central spines 2-3, chalky blue with dark tips, pointing upward, straight or slightly curved, to 2 cm (0.8 in) long. Radial spines 16-20, spreading, whitish, 0.9-1.2 cm (0.4-0.5 in) long. Flowers, fruits not known. Distribution: Sour Lake, Hardin County, Texas.

Zimmerman (1991) believed that Neoiloydia gautii is simply an etiolated form of Turbinicarpus beguinii (syn. N. be-guinii) but Mosco and Zanovello (1997) argued persuasively that it is, in fact, an Echinomastus.

Echinomastus intertextus (Engelmann) Britton 8c Rose 1922

chihuahua pineapple cactus, early-bloomer cactus, interlacing spine cactus, white-flowered viznagita, w0ven-spine pineapple cactus

Echinocactus intertextus Engelmann 1856, Neoiloydia intertexta (Engelmann) L. D. Benson 1969, Sclerocactus intertextus (Engelmann) N. P. Taylor 1987, Pediocactus intertextus (Engelmann) Halda 1998 Echinomastus dasyacanthus (Engelmann) Britton & Rose 1922, Sclerocactus intertextus var. dasyacanthus (Engelmann) N. P. Taylor 1987, Pediocactus intertextus var. dasyacanthus (Engelmann) Halda 1998

Plants solitary, globose to somewhat cylindrical, 5-15 cm (25.9 in) high, 4-7.5 cm (1.6-3 in) in diameter, with the spines obscuring the stems. Ribs 11-13, extending 6-9 mm (0.2-0.4 in) below the tubercles. Tubercles protruding, nipple-like. Central spines 4, pinkish or grayish, upper 3 pointing upward like radials, elliptical in cross section, 1.2-4 cm (0.5-1.6 in) long. Radial spines 13-25, spreading, slightly curved, 0.9-

2 cm (0.4-0.8 in) long, whitish. Flowers broadly funnelform, pink or pinkish white, 2-3 cm (0.8-1.2 in) long, 2.5-3 cm (1-1.2 in) in diameter. Fruits globose, green. Distribution: southeastern Arizona, southern New Mexico, and west Texas, and adjacent Mexico..

Echinomastus johnsonii (Engelmann) E. M. Baxter 1935 chartreuse pineapple cactus, johnson's pineapple cactus, pineapple cactus, pink viznagita

Echinocactus johnsonii Engelmann 1871, Ferocactus johnsonii (Engelmann) Britton & Rose 1922, Thelocactus johnsonii (Engelmann) W. T. Marshall 1942, Neoiloydia johnsonii (Engelmann) L. D. Benson 1969, Sclerocactus johnsonii (Engelmann) N. P. Taylor 1987, Pediocactus johnsonii (Engelmann) Halda 1998

Plants usually solitary, ovoid to cylindrical, 10-25 cm (3.99.8 in) high, 5-10 cm (2-3.9 in) in diameter, densely covered by spines. Ribs 17-21, strongly indented above each tubercle and then rising gradually to the next. Tubercles distinct, about 6 mm (0.2 in) high. Central spines 4-9, pinkish to reddish, becoming darker with age, straight or mostly so, spreading, 3-4 cm (1.2-1.6 in) long. Radial spines 9-10, lighter in color, spreading, 1.2-2 cm (0.5-0.8 in) long. Flowers funnelform, magenta, pink, or greenish yellow, 5-6 cm (2-2.4 in) long, 5-7.5 cm (2-3 in) in diameter. Fruits green, becoming tan at maturity, dehiscing vertically. Distribution: eastern California, southern Nevada, and western Arizona.

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