. The Cactaceae : descriptions and illustrations of plants of the cactus family. GYMNOCALYCIUM. 159 pi. 137; Loddiges, Bot. Cab. 16: pi. 1524; Reichenbach, Fl. Exot. pi. 326, as Cactus gib- bosus; Pfeiffer, Abbild. Beschr. Cact. 2: pi. 12, as Gymnocalycium reductum; Curtis's Bot. Mag. 64: pi. 3561, as Echinocactus mackieanus; Curtis's Bot. Mag. 75: pi. 4443, as Cereus reductus; Monatsschr. Kakteenk. 30: 181, as Echinocactus gibbosus nobilis. Figure 166 is from a photograph obtained by Dr. Rose from Dr. Spegazzini in 1915. 11. Gymnocalycium multiflorum (Hooker) Britton and Rose, Addisonia 3:5.


. The Cactaceae : descriptions and illustrations of plants of the cactus family. GYMNOCALYCIUM. 159 pi. 137; Loddiges, Bot. Cab. 16: pi. 1524; Reichenbach, Fl. Exot. pi. 326, as Cactus gib- bosus; Pfeiffer, Abbild. Beschr. Cact. 2: pi. 12, as Gymnocalycium reductum; Curtis's Bot. Mag. 64: pi. 3561, as Echinocactus mackieanus; Curtis's Bot. Mag. 75: pi. 4443, as Cereus reductus; Monatsschr. Kakteenk. 30: 181, as Echinocactus gibbosus nobilis. Figure 166 is from a photograph obtained by Dr. Rose from Dr. Spegazzini in 1915. 11. Gymnocalycium multiflorum (Hooker) Britton and Rose, Addisonia 3:5. 1918. Echinocactus multiflorus Hooker in Curtis's Bot. Mag. 71: pi. 4181. 1845. Simple or cespitose, globular or somewhat depressed or sometimes short-columnar, 9 cm. high or more, sometimes 12 cm. in diameter; ribs 10 to 15, broad at base, somewhat tubercled, especially above, acutish; areoles elliptic, 10 mm. long; spines 7 to 10, all radial, spreading, somewhat flattened, stout, yellowish, the longest one 3 cm. long; flower-bud ovoid, covered with imbricate scales; flowers to 4 cm. long, pinkish to nearly white, short-campanulate; inner perianth-segments oblong, 3 cm. long, obtuse or acute; scales on the ovary broad and rounded, their margins scarious. Type locality: Not cited. Distribution: Reported from Brazil, Uruguay, Paraguay, and Argentina. We know it definitely from Argentina, where it was collected by Dr. Rose in 1915, in Cordoba. Schumann (Gesamtb. Kakteen 405. 1898) describes briefly the three following varie- ties: albispinus, parisiensis, and hybopleurus. Echinocactus ourselianus Monville (Salm-Dyck, Cact. Hort. Dyck. 1849. 34. 1850) is cited by vSchumann as a synonym of this species, but it was never published; the name was attributed to Cels by Salm-Dyck. Its variety albispinus (Monats- schr. Kakteenk. 5: 111. 1895) is sometimes met with. Illustrations: Mollers Deutsche Gart. Zeit. 25: 474. f. 6, No. 22; Loudon, Encycl. PI. ed. 3. 1376. f. 19369; Monatsschr


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