OPUNTIA. 



I87 



figure 227 is from a photograph taken by A. S. Hitchcock on Lanai in 1916; figure 228 

 represents a joint of a plant obtained by Dr. MacDougal near Mount Wilson, Cali- 

 fornia, in 1906, a nearly spineless form. 



207. Opuntia deamii Rose, Contr. U. S. Nat. Herb. 13: 309. 1911. 



One meter or so high, with a definite cylindric trunk, branching a short distance above the base ; 

 branches few, ascending; joints erect or spreading, very large, obovate to oblanceolate, 25 to 30 cm. 

 long, at first bright leaf-green, in age dark green, glabrous; areoles remote, often 4 cm. apart, rather 

 small; spines 2 to 6, usually 4, white or dull yellow, stout, somewhat flattened, spreading or porrect, 

 3 to 5.5 cm. long; flowers 7 cm. long, reddish; fruit oblong, 6 cm. 

 long, naked, except for a few spines near the top, wine-red both 

 within and without, not edible; seeds small, 3 mm. 

 broad. 



Type locality: Fiscal, Guatemala. 



Distribution: Fiscal to San Jose de Golfo and 

 Sanarata, Guatemala. 



Illustration: Contr. U. S. Nat. Herb. 13: 

 pl. 65. 



Figure 229 represents a joint 

 of the type specimen. 



A tall, white-spined Opuntia, 

 closely resembling the Mexican 0. 

 macracantha, was obtained by Dr. 

 Rose in 1918 (No. 22390) along 

 roadsides at Ambato, Ecuador, 

 presumably escaped from cultiva- 

 tion ; its fruit is edible. 



207a. Opuntia dobbieana sp. nov. 

 (See Appendix, p. 225.) 



208. Opuntia eichlamii Rose, Contr. 



U. S. Nat. Herb. 13: 310. / 

 1911. 



Tree-like, 5 to 6 meters high, the 

 main branches nearly erect; joints obo- 

 vate to orbicular, 15 to 20 cm. long, 

 more or less glaucous, especially in 

 dried specimens; leaves minute, cadu- 

 cous; areoles small, 3 to 3.5 cm. apart; 

 spines 4 to 6, very unequal, 2 cm. long 

 or less, rose-colored at first, soon be- 

 coming white, spreading, the larger 

 ones flattened; glochids brown; flower 

 3.5 cm. long; petals carmine; style 

 red; stigma-lobes 8 to 11, bright 

 green; fruit 4 cm. long, strongly tu- 

 berculate, not edible. 



Fig. 229. — Opuntia deamii 



Type locality: Near Guatemala City. 

 Distribution: Suburbs of Guatemala City, Guatemala. 

 Illustration: Contr. U. S. Nat. Herb. 13: pl. 66. 

 Figure 230 represents a joint of the type specimen. 



209. 



Opuntia inaequilateraUs Berger, Bot. Jahrb. Engler 36: 453. 1905. 



About 12 dm. high, with spreading branches; joints oblique, narrowly ovate to subrhomboid, 

 40 to 70 cm. long, 2 to 4 times as long as wide, narrowed at base, obtuse at apex, with somewhat 



