441 
areole, Seed remarkably small. Erect, 9 to 12 dm. high.” This may 
be O. strigil. 
OPUNTIA sp. “A very tall (27 to 36 dm.), large-jointed, erect: plant, 
with numerous spines (lower ones and especially central ones deflexed), 
and ovoid fruit which is red inside and out. Known as ‘ cardona,’ and 
most commonly cultivated in and about San Luis Potosi. Abundantly 
eaten fresh and mashed and dried in a paste or cheese-like form; also 
the purple juice expressed and drunk with water like orangeade.” 
Il. CYLINDROPUNTIA. Joints cylindraceous, more or less tuberculate: 
seeds not margined (except in ** ++ ), 
“Low plants with short clavate joints and without a firm woody skeleton: larger spines 
angular-compressed and without sheaths (exc. clavellina and tunicata): flowers yellow 
(exe. pulchella), large: fruit dry and very bristly. 
+ Spines short (3 to 20 mm), 
62. Opuntia bulbispina Engelm. Syn. Cact. 304 (1856). 
Prostrate, in spreading masses 6 to 12 din. in diameter, with fusiform 
roots: joints small (18 to 24mm. long and 12 min. in diameter), ovate 
(scarcely clavate), fragile, often proliferous from apex, with ovate tuber- 
cles 6 to 12 mm. long: pulvini scarcely bristly: spines teretish, sea- 
brous, bulbous at base; interior 4 cruciate, 8 to 12 mm. long (the lower 
the longer); exterior 8 to 12 radiant, 3 to 6 mm. long: flower and fruit 
unknown. (lll. Cact. Mex. Bound. t. 73, fag )—Type, Gregg of 1848 
in Herb. Mo. Bot. Gara. 
From New Mexico to Coahuila. 
Specimens examined: NEw MExIco (Nealley of 1891): COAHUILA 
(Gregg of 1848, near Perros Bravos, Saltillo). 
In Watson’s Bibliographical Index and in the Kew Index this is made a synonym 
of tunicata, but it differs in almost every respect, having no sheaths, much shorter 
spines, and small and much shorter joints. 
63. Opuntia parryi Engeln. Amer. Journ. Sei. ser. 2, xiv, 389 (1852). 
Prostrate, with ovate joints (clavate at base) 6 to 10 em. long and 
bearing oblong elongated tubercles 18 mm. long: pulvini with few rigid 
brownish bristles: spines very numerous, in three series, angular, sca- 
brous, reddish-gray (at length ashy); interior about 4, stouter, triangu- 
lar-compressed, 24 to 32 mm. long; the next exterior 4 to 8, divergent, 
angular, 6 to 16 mm. long; the most exterior (but mostly lateral or 
inferior) 6 to 10 slender, rigid, radiant: fruit ovate, clavate at base, 
very spiny, 3.9 cm. long: seeds regular, beakless, with broader commis- 
sure than usual, 4 to 5 mm. in diameter. (J/l. Pacif. R. Rep. iv, t. 22, 
f. 4-7)—T ype not found in the Engelmann collection. 
Gravelly plains of the Mojave, southeastern California. 
Specimens examined: CALIFORNIA (Bigelow of 1853), 
Distinguished from 0. clavata by the shape of the joints, the bristles, the slenderer 
darker more numerous spines, and the smaller more regular beakless seeds. Dr. 
Parry’s original specimen was collected near San Felipe. 
