. Carnegie Institution of Washington publication. 174 THE CACTACEAE. Plate xxxin, figure i, represents a fruiting joint of a plant raised from seeds received by the United States Department of Agriculture. Figure 212 is from a photograph of a plant near St. Georges, Bermuda, taken by Stewardson Brown in 1912. 191. Opuntia tomentella Berger, Monatsschr. Kakteenk. 22: 147. 1912. Bushy; joints obovate to oblong, 20 to 30 cm. long, 9 to 15 cm. broad, light green, somewhat shining, finely puberulent; areoles about 3 cm. apart, small; spines i or 2, acicular, white, short (7 to 10 mm. long), porrect
. Carnegie Institution of Washington publication. 174 THE CACTACEAE. Plate xxxin, figure i, represents a fruiting joint of a plant raised from seeds received by the United States Department of Agriculture. Figure 212 is from a photograph of a plant near St. Georges, Bermuda, taken by Stewardson Brown in 1912. 191. Opuntia tomentella Berger, Monatsschr. Kakteenk. 22: 147. 1912. Bushy; joints obovate to oblong, 20 to 30 cm. long, 9 to 15 cm. broad, light green, somewhat shining, finely puberulent; areoles about 3 cm. apart, small; spines i or 2, acicular, white, short (7 to 10 mm. long), porrect, sometimes wanting; glochids few; flowers numerous, 5 to 6 cm. long; petals obovate, reddish yellow; filaments yellowish green; style rose-colored; stigma-lobes white; ovary tomentose, armed with numerous black glochids; fruit oblong, red, sour. Type locality: In Guatemala. Distribution: Guatemala. This species was distributed by the late F. Eichlam, who sent plants both to Washington and to La Mortola, those sent to La Mortola being used by Mr. Berger for his description. The species is perhaps near the common Mexican species O. tonicntosa, but does not grow so tall, and the tomentum is not so dense nor so soft. Figure 213 represents a joint of a plant collected in Guatemala by F. Eichlam in 1909. 192. Opuntia guilanchi Griffiths, Rep. Mo. Bot. Gard. 19: 265. 1908. Becoming to 2 meters high, often with a distinct trunk to cm. in diameter; joints broadly obovate, 14 to 16 cm. wide, 20 to 24 cm. long, minutely pubescent; spines at first white, slightly flat- tened, the longest 2 cm. long; glochids light yellow; fruit subglobose, 4 cm. in diameter, pubescent, variously colored, aromatic. Type locality: Near the city of Zacatecas, Mexico. Distribution: Zacatecas, Mexico. Series 18. LEUCOTRICHAE. This series is restricted to a single species. Schumann grouped as Chaetophorae, 0. leucotricha with 0. ursina, the latter a species with simi- lar long bristles on the stem b
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