English: Identifier: cactaceaedescri02brit

Title: The Cactaceae : descriptions and illustrations of plants of the cactus family Year: 1919 (1910s) Authors: Britton, Nathaniel Lord, 1859-1934 Rose, J. N. (Joseph Nelson), 1862-1928 Subjects: Publisher: Washington : Carnegie Institution of Washington Contributing Library: The LuEsther T Mertz Library, the New York Botanical Garden Digitizing Sponsor: The LuEsther T Mertz Library, the New York Botanical Garden

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Text Appearing Before Image: nded; throat4.5 cm. broad at the top; perianth-segments bright yellow, oblong, spreading; filaments numerous,yellow; style short, thick, white, with numerous, slender, white stigma-lobes; scales of the ovaryand flower-tube small, with brown wool, white bristles, and short spines; fruit globular, juicy, coveredwith numerous spine-clusters, these tardily deciduous. Type locality: Yura, near Arequipa, Peru. Distribution: In the mountains of southern Peru, altitude 2,000 to 3,300 meters. This species is one of the three or four common cacti found on the hills and in the valleysboth above and below Arequipa, and, while not the largest, is often the most abundant andconspicuous. Dr. Rose studied this plant in Peru in 1914, collecting living and herbariumspecimens, including the very long spines described above (Nos. 18780, 18965). Figure 99 is from a photograph taken near Arequipa, Peru, by T. A. Corry in 1917;figure 101 represents a flower collected by Dr. Rose near the same place in 1914.

Text Appearing After Image: B -: II ■ IB .- Fig. 99.—Corryocactus brevistylus. Fig. 100.—Corryocactus brachy- petalus. 2. Corryocactus brachypetalus (Vaupel). Cereus brachypetalus Vaupel, Bot. Jahrb. Engler 50: Beibl. m: 16. 1913. Plant 2 to 4 meters high, usually with many (sometimes 100 or more) strict branches fromthe base, forming a top 3 to 4 meters in diameter; ribs usually 7 or 8, somewhat prominent; areolesusuallv 2 cm. apart, large, 1 cm. in diameter or less, with short wool and spines; spines at first blackwith brown bases, about 20 at an areole, very unequal, most of them less than 1 cm. long, the longestones 10 to 16 cm. long; flowers broadly funnelform, 4 to 6 cm. broad; throat 2 to 3 cm. broad at top;inner perianth-segments deep orange, 1 to 1.5 cm. long, the outer ones apiculate, the inner onesobtuse or truncate; filaments very short, 5 to 8 mm. long, yellow; style, including the slender stigma-lobes, 2 cm. long; areoles of the ovary and flower small, filled with black and white wTool and na

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