. The Cactaceae : descriptions and illustrations of plants of the cactus family. NEOLLOYDIA. 15 2. Neolloydia clavata (Scheidweiler). Mammiltaria clavata Scheidweiler, Bull. Acad. Sci. Brux. 5: 494. 1838. Mammillaria stipitala Scheidweiler, Bull. Acad. Sci. Brux. 5: 495. 183S. Mammillaria rhaphidacantha Lemaire, Cact. Gen. Nov. Sp. 34. 1839. Mammillaria ancistracantha Lemaire, Cact. Gen. Nov. Sp. 36. 1839. Mammillaria rhaphidacantha humilior * Salm-Dyck in Forster, Handb. Cact. 244. 1846. 1850. Mammillaria scolymoides raphidacantha Salm-Dyck, Cact. Hort. Dyck. 1849. 132. Echinocactus corniferu


. The Cactaceae : descriptions and illustrations of plants of the cactus family. NEOLLOYDIA. 15 2. Neolloydia clavata (Scheidweiler). Mammiltaria clavata Scheidweiler, Bull. Acad. Sci. Brux. 5: 494. 1838. Mammillaria stipitala Scheidweiler, Bull. Acad. Sci. Brux. 5: 495. 183S. Mammillaria rhaphidacantha Lemaire, Cact. Gen. Nov. Sp. 34. 1839. Mammillaria ancistracantha Lemaire, Cact. Gen. Nov. Sp. 36. 1839. Mammillaria rhaphidacantha humilior * Salm-Dyck in Forster, Handb. Cact. 244. 1846. 1850. Mammillaria scolymoides raphidacantha Salm-Dyck, Cact. Hort. Dyck. 1849. 132. Echinocactus corniferus rhaphidacanthus Poselger, Allg. Gartenz. 21: 102. 1853. ?Mammillaria potosiana Jacobi, Allg. Gartenz. 24: 92. 1856. Mammillaria sulcoglandulifera Jacobi, Allg. Gartenz. 24: 92. 1856. Coryphantha raphidacantha Lemaire, Cactees 34. 1868. Coryphantha ancistracantha Lemaire, Cactees 34. 1868. Cactus ancistracanthus Kuntze, Rev. Gen. PI. i: 261. 1891. Cactus rhaphidacanthus Kuntze, Rev. Gen. PI. i: 261. 1891. Cactus brunneus Coulter, Contr. V. S. Nat. Herb. 3: 117. 1894. Cactus maculatus Coulter, Contr. U. S. Nat. Herb. 3: 117. 1894. Mammillaria raphidacantha] ancistracantha Schumann, Gesamtb. Kakteen 506. 1898. Mammillaria radicantissima Quehl, Monatsschr. Kakteenk. 22: 164. 1912. Plants simple, elongated, cylindric, 10 to 15 cm. high, dark bluish green; tubercles in rows of 5, 8, and 13, conic, grooved above, the axils when young bearing short white wool; glands in the groove I to several, large, red; radial spines 6 to 12, with reddish or black tips; central spine i, some- what longer than radials, curved or even hooked; flowers small for the genus, about 2 cm. long; outer perianth-segments linear, acute, entire, with broad brownish midrib; inner perianth-segments linear, entire, narrow, creamy white; stamens pinkish, much shorter than the perianth-segments; style pinkish; stigma-lobes 5 or 6, short, Fig. 14.—Neolloydia clavata. Fig. 15.—Neolloydia conoidea. Type


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