. Carnegie Institution of Washington publication. FIG. very variable in color and size, lemon-yellow to deep red, 2 to 3 cm. long, sometimes 5 cm. broad when fully expanded; petals obtuse; filaments short; style thick; stigma-lobes very short; ovary short with few areoles; areoles on ovary subtended by minute leaves, filled with short wool, the upper ones with bristle-like spines; fruit globular to short-oblong, 2 to 3 cm. long, dry; seeds numerous, 4 to 5 mm. long. Type locality: In Bolivia. Distribution: Very common on the high pampas of southeastern Peru and Bolivia, and adjacent Argentina.
. Carnegie Institution of Washington publication. FIG. very variable in color and size, lemon-yellow to deep red, 2 to 3 cm. long, sometimes 5 cm. broad when fully expanded; petals obtuse; filaments short; style thick; stigma-lobes very short; ovary short with few areoles; areoles on ovary subtended by minute leaves, filled with short wool, the upper ones with bristle-like spines; fruit globular to short-oblong, 2 to 3 cm. long, dry; seeds numerous, 4 to 5 mm. long. Type locality: In Bolivia. Distribution: Very common on the high pampas of southeastern Peru and Bolivia, and adjacent Argentina. Cactus pcntlandii Lemaire (Cact. 88. 1868), name only, is sup- posed to apply to this species. This is one of the most characteristic plants of the high pampas of the Andean region, mostly growing at elevations of 12,000 feet or higher, forming low, broad, compact clumps, sometimes made up of a hundred plants or more. Illustrations: Nicholson 2: f. 751; PForster, Handb. Cact. ed. 2. f. 124; ?W. Watson, Cact. Cult. f. 77, all as Opuntia boliviano; Monatsschr. Kakteenk. 24: 175, as Opuntia dactylifcra. Figure 116 represents a joint of the plant collected in 1914 by Dr. Rose at Comanche, Bolivia; figure 117 shows a flowering joint collected by Dr. Rose in 1914, at Juliaca, Peru. 74. Opuntia ignescens Vaupel, Bot. Jahrb. Engler Beibl. in: 30. 1913- Plants forming clumps 2 dm. high or less, with hundreds of erector spreading joints; joints bluish green, 8 to 10 cm. long, very fleshy, naked below; upper areoles very spiny; spines 6 to 15 from each areole, nearly equal, 4 to 5 cm. long, erect, acicular, yellow; flowers very showy, deep red; ovary oblong, 3 to4cm. long, naked below, but the upper areoles producing numerous spines 4 to 7 cm. long; fruit red, 7 cm. long, spiny and tuberculate above, terete below, with a deep umbilicus; seeds nearly globular, about 5 mm. in diameter. Type locality: Near Sumbay, southern Peru. Distribution: On the pampas of southern Peru and n
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