The Cactaceae : descriptions and illustrations of plants of the cactus family . amtb. Kakteen 115. 1897. Cereus paraguayensis Schumann in Chodat and Hassler, Bull. Herb. Boiss. II. 3: 249. 1903. Stems up to 2 meters high; ribs mostly 5, strongly compressed, 3 cm. high, separated by deepsharp intervals, rounded on the edge; areoles 2 to cm. apart, when young filled with white wool;spines 6 to 9, all spreading, when young golden yellow, but gray when older, red at the bases, subu-late, cm. long; flowers 21 to 22 cm. long, 10 cm. broad at mouth; outer perianth-segmentsnarrow, 1 cm. wide o
The Cactaceae : descriptions and illustrations of plants of the cactus family . amtb. Kakteen 115. 1897. Cereus paraguayensis Schumann in Chodat and Hassler, Bull. Herb. Boiss. II. 3: 249. 1903. Stems up to 2 meters high; ribs mostly 5, strongly compressed, 3 cm. high, separated by deepsharp intervals, rounded on the edge; areoles 2 to cm. apart, when young filled with white wool;spines 6 to 9, all spreading, when young golden yellow, but gray when older, red at the bases, subu-late, cm. long; flowers 21 to 22 cm. long, 10 cm. broad at mouth; outer perianth-segmentsnarrow, 1 cm. wide or less; inner perianth-segments spatulate, obtuse to acute, fringed or entire,white with a rosy tinge; stigma-lobes 13, yellowish green; ovary cylindric, naked. Type locality: Porto Alegre, : Southern Brazil and Paraguay. *Lemaires plates are not numbered and there is more or less uncertainty as to their order. We have fol-lowed Schumann in referring this species to plate 8. In the only copy which we have examined it is plate 11. BRITTON AND ROSE, VOL. II E. Baton del. 1. Top of flowering stem of Cereus alacriportanus. 2. Top of stem of Cereus peruvianus. 3. Flower of the same plant. (Natural size.) CEREUS. 7 This species has long been in cultivation in the New York Botanical Garden under thename of Cereus alacriportanus, where it has frequently flowered. It differs somewhat fromthe description of C. paraguayensis by Schumann in the color of the spines and closenessof the areoles. Cereus bonaricnsis is referred here by Forster (Handb. Cact. 388. 1846) as a syn-onym. Sweet also used the name (Hort. Brit. ed. 3. 283. 1839) but does not associate itwith this species. Illustrations: Chodat, Veg. Paraguay 1: f. 90, as C. paraguayensis; Karsten, DeutscheFl. f. 501, No. 7. Plate 11, figure 1, shows the plant in the New York Botanical Garden above referredto, which flowered in April 1915.
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