The Cactaceae : descriptions and illustrations of plants of the cactus family . k Botanical Garden,which flowers annually and from which an abundance of flowers has been obtained. Cereus militaris Audot (Rev. Hort. II. 4:307. 1845) and Pilocereus militaris (Salm-Dyck, Cact. Hort. Dyck. 1849. 40. 1850, as synonym) probably belong here. Illustrations: Contr. U. S. Nat. Herb. 10: pi. 18; MacDougal, Bot. N. Amer. Des. ; Xat. Geogr. Mag. 21: 699, as Pilocereus fulviceps; Contr. U. S. Nat. Herb. 12: pi. 66. Plate xi illustrates the top of a flowering plant in the New York Botanical Gardenbrough
The Cactaceae : descriptions and illustrations of plants of the cactus family . k Botanical Garden,which flowers annually and from which an abundance of flowers has been obtained. Cereus militaris Audot (Rev. Hort. II. 4:307. 1845) and Pilocereus militaris (Salm-Dyck, Cact. Hort. Dyck. 1849. 40. 1850, as synonym) probably belong here. Illustrations: Contr. U. S. Nat. Herb. 10: pi. 18; MacDougal, Bot. N. Amer. Des. ; Xat. Geogr. Mag. 21: 699, as Pilocereus fulviceps; Contr. U. S. Nat. Herb. 12: pi. 66. Plate xi illustrates the top of a flowering plant in the New York Botanical Gardenbrought from Tehuacan, Mexico, by Dr. MacDougal and Dr. Rose in 1906. Figure 107 isfrom a photograph taken by Dr. Rose near Tehuacan, in 1906; figure 108 shows the flowerof this plant; and figure 109 a longitudinal section of the flower. 74 THE CACTACEAE. 7. Pachycereus marginatus (De Candolle) Britton and Rose, Contr. U. S. Nat. Herb. 12: 421. 1909. Cereus marginatus De Candolle, Mem. Mus. Hist. Nat. Paris 17: 116. gemmatus Zuccarini in Pfeiffer, Enum. Cact. 96. -Flower of P. chrysomalhis. Fig. 109.—Longitudinal section of flowerof P. chrysomallus. Stems 3 to 7 meters high, erect, usually simple; ribs 5 or 6 (7 in the original specimen), some-what acute when young, obtuse in age; areoles close together, usually confluent, their wool forminga dense white cushion along the ridge of each rib; spines at first 5 to 8 (1 central), in old areoles morenumerous, 1 cm. long or less, but in flowering areoles often numerous, bristly and 2 cm. long; flowersand fruit usually closely set, one above the other, apparently only one at an areole, but recorded asoften geminate, and appearing anywhere along the ribs from the top downward; flower funnelform,3 to 4 cm. long including the ovary; tube and ovary more or less scurfy and with ovate scales sub-tending bunches of wool and small spines; fruit globular, about 4 cm. in diameter, not very fleshy,yellowish red within,
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Keywords: ., bookauthorbrittonn, bookcentury1900, bookdecade1910, bookyear1919
