. The Cactaceae : descriptions and illustrations of plants of the cactus family. 236 THE CACTACEAE. Plate xxiv, figure 5, shows a plant collected by Rose and Russell at Cabo Frio, August 8, 1915 (No. 20698). Figure 238 is reproduced from the first illustration cited above. 17. Cactus zehntneri sp. nov. Often cylindric, sometimes 2 to 3 dm. high; ribs 12 to 15, rather thin, acutish; radial spines terete, stout, dark brown, more or less incurved, cm. long or less; central spine one, similar to the radials, erect or ascending; flowers pinkish; fruit red. Very common on the flats near Joazeiro
. The Cactaceae : descriptions and illustrations of plants of the cactus family. 236 THE CACTACEAE. Plate xxiv, figure 5, shows a plant collected by Rose and Russell at Cabo Frio, August 8, 1915 (No. 20698). Figure 238 is reproduced from the first illustration cited above. 17. Cactus zehntneri sp. nov. Often cylindric, sometimes 2 to 3 dm. high; ribs 12 to 15, rather thin, acutish; radial spines terete, stout, dark brown, more or less incurved, cm. long or less; central spine one, similar to the radials, erect or ascending; flowers pinkish; fruit red. Very common on the flats near Joazeiro, Bahia, where it was collected by Dr. Rose and P. G. Russell in 1915 (No. 19728). These plants grow in the open on the flats in the semiarid part of Bahia, often associated with Cephalocereus gounellei and other cacti. Illustration: Vegetationsbilder 6: pi. 15, as Melocactus sp. Figure 248 is from a photograph of the type Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Britton, Nathaniel Lord, 1859-1934; Rose, J. N. (Joseph Nelson), 1862-1928. Washington : Carnegie Institution of Washington
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Keywords: ., bookauthorbrittonnathaniellord1, bookcentury1900, bookdecade1910
