. The Cactaceae : descriptions and illustrations of plants of the cactus family. ECHINOMASTUS. 151 Type locality: About Pelayo, Chihuahua, between Chihuahua City and Parras. Distribution: States of Chihuahua and Zacatecas, Mexico. This species was described by Dr. Bngelmann in 1848 from a single specimen collected by Dr. Wislizenus in Pelayo, Chihuahua. No other material was known to Dr. Coulter in 1896 when he wrote his monograph and the species was not in cultivation in this country in 1900. In 1908 Professor F. B- Lloyd sent material from the state of Zacatecas, and since then both Dr. Elsw
. The Cactaceae : descriptions and illustrations of plants of the cactus family. ECHINOMASTUS. 151 Type locality: About Pelayo, Chihuahua, between Chihuahua City and Parras. Distribution: States of Chihuahua and Zacatecas, Mexico. This species was described by Dr. Bngelmann in 1848 from a single specimen collected by Dr. Wislizenus in Pelayo, Chihuahua. No other material was known to Dr. Coulter in 1896 when he wrote his monograph and the species was not in cultivation in this country in 1900. In 1908 Professor F. B- Lloyd sent material from the state of Zacatecas, and since then both Dr. Elswood Chaffey and Dr. C. A. Purpus have sent living plants from central Mexico. Illustrations: Cact. Mex. Bound, pi. 35, f. 6 to 8; Schumann, Gesamtb. Kakteen f. 61, C; Mdnatsschr. Kakteenk. 5: 185; Knippel, Kakteen pi. 12, f. 1, as Echinocactus ungui- spinus; Bait. Cact. Journ. 2: 147; Orcutt, Rev. Cact. 54, as Echinocactus trollietii; West Amer. Sci. 8: 119, as Echinocactus No. 79. Figure 155 is from a photograph of a specimen sent in by Dr. C. A. Purpus from Cerro de Movano, Mexico, which has more slender and less curved central spines than the Fig. 157.—Kehinomastus dasyacanthus. Fig. 158.—Echinomastus macdowellii 5. Echinomastus macdowellii* (Rebut). Echinocactus macdowellii Rebut in Quehl, Monatsschr. Kakteenk. 4: 133. 1894. Simple, globular or a little depressed, about 7 cm. high, 12 cm. in diameter, covered with a mass of interlocking spines; ribs 20 to 25, pale green, 5 to 7 mm. high, divided into tubercles; radial spines 15 to 20, white, spreading, up to cm. long; central spines 3 or 4, dark colored, the longest up to 5 cm. in length; flowers rose-colored, up to 4 cm. long; ovary globose, said to be scaly. Type locality: Not cited. Distribution: Northern Mexico. We have had this species in cultivation, but it has never flowered in this country. According to Mr. McDowell, it comes from Nuevo Leon near the border of Coahuila, Mexico. In addition to the syno
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Keywords: ., bookauthorbrittonnathaniellord1, bookcentury1900, bookdecade1910
