The Cactaceae : descriptions and illustrations of plants of the cactus family . 27: 177, 178. 1900). Mr. Alban Stewart, who made extensive collections in the Galapagos Islands in 1905and 1906, discusses the cacti in considerable detail (Proc. Calif. Acad. Sci. IV. 1: 107 to 115).He recognizes two columnar arborescent species under the names Cereus galapagensisWeber and Cereus sclerocarpus Schumann, and indicates that they may be distinguished byhabit characters, but remarks particularly on the great variability of the flowers of both. Illustrations: Proe. Calif. Acad. 1: pi. 6, 16, as
The Cactaceae : descriptions and illustrations of plants of the cactus family . 27: 177, 178. 1900). Mr. Alban Stewart, who made extensive collections in the Galapagos Islands in 1905and 1906, discusses the cacti in considerable detail (Proc. Calif. Acad. Sci. IV. 1: 107 to 115).He recognizes two columnar arborescent species under the names Cereus galapagensisWeber and Cereus sclerocarpus Schumann, and indicates that they may be distinguished byhabit characters, but remarks particularly on the great variability of the flowers of both. Illustrations: Proe. Calif. Acad. 1: pi. 6, 16, as Cereus sclerocarpus; III. 27: 185. f. 61, as Cereus sp.;Wolf, Geographia y Geologia del Ecuadorf. 41, pi. 11; Bull. Mus. Comp. Zool. 23: , 20. Figure 212 is from a photograph of theplant in its natural habitat on CharlesIsland, Galapagos, contributed by theUnited States Fish Commission; figures213 and 214 show flowers drawn from anherbarium specimen in the collection of theCalifornia Academy of Sciences, collectedby Alban Stewart (No. 2097) in 1905 Figs. 213 and 214.—Flowers of J. galapagensis. 26. HARRISIA Britton, Bull. Torr. Club 35: 561. Riccobono, Boll. R. Ort. Bot. Palermo 8: 238. cacti with slender, branched stems, the branches fluted or angled, each areolewith several acicular spines; flowers borne singly at areoles near the ends of the branches, funnel-form, large, with a cvlindric, scaly tube as long as the limb or longer; buds globose, ovoid or obovoid,the scales subtending areoles which bear tufts of long or short hairs, persistent or sometimes deciduousas the flower expands; outer perianth-segments mostly pink or greenish, linear to lanceolate; innerperianth-segments white or pinkish; stamens shorter than the perianth; ovary and young fruittubercled; stvle somewhat longer than the stamens; fruit globose to obovoid-globose, spineless orspiny, but with mostly deciduous scales, the corolla witheri
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Keywords: ., bookauthorbrittonn, bookcentury1900, bookdecade1910, bookyear1919
