. Carnegie Institution of Washington publication. 42 THE CACTACEAE. This species was named for Karl Ehrenberg who spent ten years in Mexico, where he made large collections of cacti. E. ehrenbergii cristatus (Forster, Handb. Cact. ed. 2. 776. 1885) is a garden monstrosity. 60. Echinocereus longisetus (Engelmann) Riimpler in Forster, Handb. Cact. ed. 2. 822. 1885. Cereus longisetus Engelmann, Proc. Amer. Acad. 3: 280. 1856. Plants simple or nearly so, cylindric, 15 to 25 era. long, 5 to cm. in diameter; ribs 11 to 14, somewhat tubercled; areoles circular; spines slender, elongated, white; r
. Carnegie Institution of Washington publication. 42 THE CACTACEAE. This species was named for Karl Ehrenberg who spent ten years in Mexico, where he made large collections of cacti. E. ehrenbergii cristatus (Forster, Handb. Cact. ed. 2. 776. 1885) is a garden monstrosity. 60. Echinocereus longisetus (Engelmann) Riimpler in Forster, Handb. Cact. ed. 2. 822. 1885. Cereus longisetus Engelmann, Proc. Amer. Acad. 3: 280. 1856. Plants simple or nearly so, cylindric, 15 to 25 era. long, 5 to cm. in diameter; ribs 11 to 14, somewhat tubercled; areoles circular; spines slender, elongated, white; radial spines 18 to 20, spread- ing, the lower 10 to 15 mm. long, much longer than the upper; central spines 5 to 7, very unequal, the lower elongated, to cm. long, deflexed; flowers said to be Fig. 54.âEchinocereus mamillatus. v fJ af' 1P.: Mm >k0* 91 ** H'^bw^^SMVK .â VQ WBg&ms£-»* r «**' '*£.,yt'J& ^gV( KJBk^i^i ><-â â "â ⢠'V -. WsMm. 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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