File:The Cactaceae - descriptions and illustrations of plants of the cactus family (1919) (14780111431).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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upper scales and outer perianth-segments mauve;limb 4 to 5 cm. broad when fully expanded; inner perianth-segments usually white, sometimesgreenish, oblong, obtuse, 2 to 2.5 cm. long; style cream-colored, much exserted; stigma-lobes greenish;fruit red, its pulp white, edible, slightly acid. Type locality: Santa Clara, east of Lima, Peru. Distribution: Very common on the hills above Lima, from Santa Clara to Matucana.This is one of the most common species in central Peru, being especially abundant onthe hillsides and in the narrow valleys between the hills, but not extending down into thebroad valleys. It often forms dense thickets. In the lower parts of its range, where thefogs are abundant, especially about Santa Clara, the branches are often covered withlichens and tillandsias. Our specimens of flowers were obtained by bringing in fully developed buds and allow-ing them to open; these began to open about 6 oclock in the evening and were fullyexpanded at 9. BRITTON AND ROSE, VOL. II.
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M K. E^ton del- 1. Top of flowering branch of Harrisia fernowii. 2. Flowering branch of Harrisia bomplandii. 3. Top of branch of Binghamiamelanostele. (Natural size.) RATHBUNIA. 169 The name Pilocereus acranthus was proposed by Schumann see plate 5 n of Engler andDrnde, Veg. Erde 12: 1911), but was never published. Illustration: Engler and Drude, Veg. Erde 12: pi. 5 b, as Pilocereus acranthus. Figure 237 is from a photograph taken by Dr. Rose at the type locality in 1914;figure 239 shows the flower, and figure 240 the fruit of the plants photographed. 30. RATHBUNIA Britton and Rose, Contr. U. S. Nat. Herb. 12: 414. 1909. Rather slender cacti, simple or bushy, the stems and branches weak, erect or bent; ribs few, 4to 8, prominent; spines subulate, those of the flowering areoles not differing from Hie cithers; flowersdiurnal, scarlet, solitary, usually at the upper areoles, narrowly tubular, the tube bearing distantlong scales and united with it except at the tip, elongated, at first st

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