Opuntia urbaniana Werdermann 1931

Plants shrubby. Stem segments linear to oblong, to 20 cm (7.9 in) long and 5.5 cm (2.2 in) wide. Glochids yellowish. Spines 1-2, needle-like, sometimes flattened and twisted, whitish at first, later yellowish, to 5 cm (2 in) long. Flowers yellow, to 7 cm (2.8 in) long. Fruits not known. Distribution: Hispaniola. Opuntia urbaniana is poorly understood.

Opuntia Xvaseyi (J. M. Coulter) Britton & Rose 1908, as a species apricot prickly pear, golden prickly pear, sprawling prickly pear

Opuntia mesacantha var. vssey/J. M. Coulter 1896 Opuntia covillei Britton & Rose 1908

Opuntia Xvaseyi is a naturally occurring hybrid, O. littoralis X O. phaeacantha. Distribution: southern California.

Opuntia velutina F. A. C. Weber 1904 Opuntia neisonii Rose 1908 Opuntia affinis Griffiths 1914

Plants shrubby to treelike with ascending branches, 1-4 m (3.3-13 ft) high with main trunks 20-80 cm (7.9-31 in)

Opuntia xwootonii 525

high. Stem segments narrowly to widely obovate, occasionally more or less round, densely pubescent, green to yellowish green, 15-26 cm (5.9-10 in) long, 14-20 cm (5.5-7.9 in) wide. Areoles white. Glochids abundant, yellowish red, 5-13 mm (0.2-0.5 in) long. Spines 2-6, weakly awl-like, straight, diverging or weakly bent backward, whitish yellow, 1-4 cm (0.4-1.6 in) long. Flowers yellow, 3-5 cm (1.2-2 in) long. Fruits globose, red, pubescent, 3-3.2 cm (1.2-1.3 in) long, 2.5-3 cm (1-1.2 in) in diameter, with glochids. Distribution: Guerrero, Morelos, Puebla, and Oaxaca, Mexico.

Opuntia viridirubra (F. Ritter) Schlindwein 1995 Platyopuntia viridirubra F. Ritter 1979

Platyopuntia rubrogemmia F. Ritter 1979, Opuntia viridirubra subsp. rubrogemmia (F. Ritter) P. J. Braun & Esteves 1995

Plants shrubby with several upright or sprawling branches, 30-40 cm (12-16 in) high. Stem segments elliptical, dark green, 6-20 cm (2.4-7.9 in) long, 2.5-4 cm (1-1.6 in) wide, to 1 cm (0.4 in) thick. Areoles white, 1.5-3 cm (0.6-1.2 in) apart. Glochids yellowish. Spines 1-3, needle-like, brownish yellow, 2-4 cm (0.8-1.6 in) long, upper one erect, lower ones bent downward. Flowers lemon yellow, 4.5-5.5 cm (1.8-2.2 in) in diameter. Fruits pear shaped, dark red, to 3.5 cm (1.4 in) long. Distribution: Rio Grande do Sul, Brazil.

Two subspecies of Opuntia viridirubra are recognized. Subspecies viridirubra has stem segments to 12 cm (4.7 in) long and 1-3 spines to 40 mm (1.6 in) long. Subspecies rubrogemmia has stem segments to 20 cm (7.9 in) long but only a few weak spines to 8 mm (0.3 in) long.

Opuntia vitelliniflora (F. Ritter) P. J. Braun 8c Esteves 1995 Platyopuntia vitelliniflora F. Ritter 1980 Platyopuntia interjecta F. Ritter 1980, Opuntia vitelliniflora subsp. interjecta (F. Ritter) P. J. Braun & Esteves 1995

Plants shrubby, low growing with several prostrate branches. Stem segments elongate, light green with dark green spots by each areole, 12-40 cm (4.7-16 in) long, 3-7 cm (1.2-2.8 in) wide, to 1 cm (0.4 in) thick. Areoles gray, slightly raised. Glochids brown, short. Spines 1-2, sometimes 3, brown, becoming whitish with age, one erect, 5-20 mm (0.2-0.8 in) long. Flowers yellowish white, to 6 cm (2.4 in) long and 5 cm (2 in) in diameter. Fruits nearly pear shaped, bright red. Distribution: Florida province, Santa Cruz, and the Gran Chaco region, Bolivia.

Two subspecies of Opuntia vitelliniflora are recognized. Subspecies vitelliniflora has stem segments to 22 cm (8.7 in) long; it occurs near Samaipata, Santa Cruz. Subspecies interjecta has stem segments to 40 cm (16 in) long; it occurs near Palmar Grande in the Gran Chaco.

Opuntia wetmorei Britton & Rose 1923

Plants shrubby, low growing, producing many branches. Stem segments more or less cylindrical, tapering toward the ends, dull green with purplish spots near areoles, turgid, 4-10 cm (1.6-3.9 in) long, to 2 cm (0.8 in) in diameter. Leaves to

2 mm long, falling away early. Areoles small, whitish or tan. Glochids short, yellowish. Spines many, unequal, bristle-like, flattened, whitish to yellowish to brownish, some bent backward, others flattened against the stem surface, some ascending, 2-3.5 cm (0.8-1.4 in) long. Flowers not known. Fruits reddish purple, with white bristles on upper areoles, to

3 cm (1.2 in) long. Distribution: Mendoza, Argentina.

Opuntia wilcoxii Britton 8c Rose 1919

Plants shrubby, forming large bushes with many branches, 1-2 m (3.3-6.6 ft) high. Stem segments oblong, thin, large, dark green with purplish tint by areoles, finely pubescent, to 20 cm (7.9 in) long. Areoles large, widely separated. Glochids numerous, long, yellow. Spines 1-3, one very long, white to somewhat yellow, to 5 cm (2 in) long. Flowers yellow, to 6 cm (2.4 in) long. Fruits pear shaped, pubescent, spineless, to

4 cm (1.6 in) long and 3 cm (1.2 in) in diameter. Distribution: Pacific coast of Mexico from Sonora to Jalisco.

Opuntia xwootonii Griffiths 1910, as a species Opuntia engelmanniiv ar. wootonii (Griffiths) Fosberg 1931,0. phaea-cantha var. wootonii (Griffiths) L. D. Benson 1969

Opuntia xwootonii is a naturally occurring hybrid, O. engel-mannii X O. phaeacantha. Distribution: New Mexico.

Opuntia Urbaniana

526 Oreocere us

Building Your Own Greenhouse

Building Your Own Greenhouse

You Might Just End Up Spending More Time In Planning Your Greenhouse Than Your Home Don’t Blame Us If Your Wife Gets Mad. Don't Be A Conventional Greenhouse Dreamer! Come Out Of The Mould, Build Your Own And Let Your Greenhouse Give A Better Yield Than Any Other In Town! Discover How You Can Start Your Own Greenhouse With Healthier Plants… Anytime Of The Year!

Get My Free Ebook


Post a comment