. Carnegie Institution of Washington publication. OPUNTIA. 179 198. Opuntia undulata Griffiths, Rep. Mo. Bot. Card. 22: 32. 1912. Opiintia undosa Griffiths, Monatsschr. Kaktenk. 23: 139. 1913. " Plant tall, large, stout, open-branching, with cylindrical trunk, often 30 cm. or more in diameter; joints very large, obovate, broadly rounded above, widest above middle, commonly 35 by 55 cm., firm, hard, quite fibrous, dished, wavy or flat, glossy light yellowish green at first, but changing through a darker green with a slight touch of glaucous to scurfy brown on old trunks; leaves subcircular
. Carnegie Institution of Washington publication. OPUNTIA. 179 198. Opuntia undulata Griffiths, Rep. Mo. Bot. Card. 22: 32. 1912. Opiintia undosa Griffiths, Monatsschr. Kaktenk. 23: 139. 1913. " Plant tall, large, stout, open-branching, with cylindrical trunk, often 30 cm. or more in diameter; joints very large, obovate, broadly rounded above, widest above middle, commonly 35 by 55 cm., firm, hard, quite fibrous, dished, wavy or flat, glossy light yellowish green at first, but changing through a darker green with a slight touch of glaucous to scurfy brown on old trunks; leaves subcircular in section, subulate, pointed, usually tinged with red at the tip, about 4 mm. long, upon a prominent tubercle and subtending a prominent dark-brown areole; areoles subcircular to ellipsoid or obovate, about by mm., gray, 5 to6 cm. apart; spicules yellow in a short, compact tuft in upper part of areole, about . i mm. long, soon becoming dirty and inconspicuous; spines white, few, short,erect,flattened, straight or twisted, 10 to 15 mm. long, i to 3 or 4, mostly one or none; fruit large, 4 to 5 by 9 to 10 cm., dull red to slightly tinged with orange and pulp streaked with red and orange when rind is ; Type locality: Described from cultivated plant obtained at Aguascalientes, Mexico. Distribution: Mexico. Illustrations: Rep. Mo. Bot. Card. 22: pi. n, in part; pi. 12. We have doubtfully referred to this species plants collected by Dr. Rose on the west coast of Mexico, where they were growing wild; this is some dis- tance from the place where the type was obtained from culti- vated plants. These speci- mens are like this species in having quite glossy joints with few spines. The plants were not in bloom when seen by Dr. Rose in the spring of 1910. Dr. Griffiths has changed his first name, 0. undulata, on account of the use of that name at an earlier time, which was not accompanied, however, by description. 199. Opuntia lanceolata Haworth, Syn. PI. Succ. 192. 1
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