File:The Cactaceae - descriptions and illustrations of plants of the cactus family (1919) (14779960381).jpg

Identifier: cactaceaedescri02brit (find matches)
Title: The Cactaceae : descriptions and illustrations of plants of the cactus family
Year: 1919 (1910s)
Authors: Britton, Nathaniel Lord, 1859-1934 Rose, J. N. (Joseph Nelson), 1862-1928
Subjects:
Publisher: Washington : Carnegie Institution of Washington
Contributing Library: The LuEsther T Mertz Library, the New York Botanical Garden
Digitizing Sponsor: The LuEsther T Mertz Library, the New York Botanical Garden

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obtusangulus (now Zygocactus)in his series Anomali, but in his Keys, published about the same time, he again has it inthe series Tenuiores. Berger places it in his subgenus Piptanthocereus, while Riccobono hasrecently transferred it to his genus Eriocereus. Dr. Schumann discusses Cereus lauterbachii Schumann (Bull. Herb. Boiss. II. 3: 250.1903) in connection with this species, but does not point out how they differ. Both the names Cereus cavendishii and C. paxtonianus were in general use until Schu-mann in 1897 suggested that the plants are the same. Sir Joseph Hooker in 1S99 unitedthem definitely under the name of Cereus paxtonianus. Illustrations: Monatsschr. Kakteenk. 19: 77, as Cereus saxicola; Monatsschr. Kak-teenk. 13: 12, as Cereus rhodoleucanthus; Curtiss Bot. Mag. 125: pi. 7648, as Cereus pax-tonianus. *When first published it was stated that the species came from Carthagene.1America, possibly Brazil, while Morong collected it in central Paraguay. Schumann says probably South
Text Appearing After Image:
M E Euton del 1. Top of stem of Cereus validus. 2. Top of flowering stem of same. 3. Top of flowering branch of Momnllea cavendiskii. 4. Top of branch with fruit of same.(Natural size.) MONVIIXRA. 23 Plate in, figure 3, shows a flowering branch in the collection of the New York BotanicalGarden; figure 4 shows the fruit from a plant in the same collection. Figure 20 is from aphotograph taken in 1917 by Dr. Shafer at Catilegua, Argentina. 2. Monvillea insularis (Hemsley). Cereus insularis Hemsley, Voyage of Challenger Bot. I2: 16. 1884. Creeping or clambering, forming a dense thicket, much branched; branches nearly cylindric,2.5 to 3 cm. in diameter, 6-angled; spines 12 to 15, unequal, spreading, terete, yellow; flowers de-scribed as yellow, 12.5 cm. long; ovary and flower-tube bearing only a few minute scales, but nospines or hairs; flower-tube very slender; perianth-segments in several series; filaments and styleprotruding; stigma-lobes 13, radiating. Type locality: St. Michaels Mount

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