. The Cactaceae : descriptions and illustrations of plants of the cactus family. 52 THE CACTACEAE. 4. Lobivia boliviensis sp. now Cespitose, in clusters of about 6; plants globular, 8 to io cm. in diameter, almost hidden by the long, nearly straight spines; ribs about 20, undulate, broken into short, blunt tubercles; areoles 1 cm. apart; spines 6 to 8, brown, acicular, flexible, often 9 cm. long. Collected by Dr. Rose at Oruro, Bolivia, in 1914 (No. 18919). This plant was quite common on the low dry hills east of Oruro, associated with Lobivia ferox, but readily distingushed from it in its ver


. The Cactaceae : descriptions and illustrations of plants of the cactus family. 52 THE CACTACEAE. 4. Lobivia boliviensis sp. now Cespitose, in clusters of about 6; plants globular, 8 to io cm. in diameter, almost hidden by the long, nearly straight spines; ribs about 20, undulate, broken into short, blunt tubercles; areoles 1 cm. apart; spines 6 to 8, brown, acicular, flexible, often 9 cm. long. Collected by Dr. Rose at Oruro, Bolivia, in 1914 (No. 18919). This plant was quite common on the low dry hills east of Oruro, associated with Lobivia ferox, but readily distingushed from it in its very slender spines and in its root system. This species has thick fleshy roots while the other has fibrous roots. It does not do well in cultivation. Figure 67 is from a photograph of a plant brought by Dr. Rose from the type locality in 1914. 5. Lobivia shaferi sp. nov. Cespitose, at first globose, becoming cylindric, 7 to 15 cm. high, to 4 cm. in diameter, densely covered with spines; ribs about 10, very low; areoles approximate; radial spines 10 to 15, acicular, white or brown, 1 cm. long or less; central spines several, one often much stouter than the others, 3 cm. long; buds very hairy; flowers 4 to 6 cm. long, funnelform, bright yellow, the tube stout, the limb 3 to 4 cm. broad; scales on ovary and flower-tube linear to ovate-linear, acute, their axils bearing long white hairs; style greenish white; stigma-lobes cream-colored. Collected by J. A. Shafer in hillside thickets, Andalgala, province of Catamarca, Argentina, December 19, 1916 (No. 16). Dr. Shafer says that this plant grows in firm leaf-mold underneath and entangled in shrubbery. Figure 69 is from a photograph taken by Dr. Shafer at Andalgala; figure 66 shows a Fig. 65.—Fruit of Lobivia longispina. Fig. 66.—Flower of Lobivia shaferi. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of


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Keywords: ., bookauthorbrittonnathaniellord1, bookcentury1900, bookdecade1910