The Cactaceae : descriptions and illustrations of plants of the cactus family . the flesh red; seeds black. Type locality: Near Tehuacan, Mexico. Distribution: Puebla and Oaxaca, Mexico. Illustration: MacDougal, Bot. N. Amer. Des. pi. 17, in part, as Pilocereus chrysacanthus;Mollers Deutsche Gart. Zeit. 29: 356. f. 12. Plate vii, figure 2, is from a photograph taken by Dr. MacDougal near Esperanza,Mexico, in 1906. 31. Cephalocereus maxonii Rose, Contr. U. S. Nat. Herb. 12: 417. 1909. Cereus maxonii Vaupel, Monatsschr. Kakteenk. 23: 23. 2 to 3 meters high, with few long branches, ere


The Cactaceae : descriptions and illustrations of plants of the cactus family . the flesh red; seeds black. Type locality: Near Tehuacan, Mexico. Distribution: Puebla and Oaxaca, Mexico. Illustration: MacDougal, Bot. N. Amer. Des. pi. 17, in part, as Pilocereus chrysacanthus;Mollers Deutsche Gart. Zeit. 29: 356. f. 12. Plate vii, figure 2, is from a photograph taken by Dr. MacDougal near Esperanza,Mexico, in 1906. 31. Cephalocereus maxonii Rose, Contr. U. S. Nat. Herb. 12: 417. 1909. Cereus maxonii Vaupel, Monatsschr. Kakteenk. 23: 23. 2 to 3 meters high, with few long branches, erect or nearly so, in mature plants the topsof the branches for about 30 cm. clothed with white hairs 4 to 5 cm. long; ribs 6 to 8, acute, paleblue and somewhat glaucous; areoles small; spines about 10, slender, yellow, the central single, 4cm. long, all nearly hidden in flowering areoles by the long white hairs; flowers purple, 4 cm. long;ovary naked except for a few small scales; fruit cm. broad, broader than high; seeds brownish,reticulate, with an oblique basal Fig. 71.—Cephalocereus maxonii Fig. 72.—Cephalocereus piauhyensis. Type locality: Near El Rancho, : Guatemala. This species, although discovered only a few years ago, has been repeatedly collectedsince and is now to be found in living collections. It is called organo in Guatemala. BRITTON AND ROSE, VOL. II


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Keywords: ., bookauthorbrittonn, bookcentury1900, bookdecade1910, bookyear1919