. The Cactaceae : descriptions and illustrations of plants of the cactus family. 36 THE CACTACEAE. 19. Coryphantha compacta (Engelmann). Mammillaria compacta Engelmann in Wislizenus, Mem. Tour North. Mex. 105. 1848. Cactus conipaclus Kuntze, Rev. Gen. PI. i: 260. 1891. Plants solitary, somewhat depressed, 3 to 6 cm. high, 5 'o 8 cm. broad; tubercles in 13 rows, much crowded, 8 mm. long, sulcata above; radial spines 14 to 16, rigid, appressed. interwoven with adjacent ones, whitish, 10 to 20 mm. long; central spines usually wanting; flowers 2 cm. long and broad, yellow; fruit oval; seeds smooth
. The Cactaceae : descriptions and illustrations of plants of the cactus family. 36 THE CACTACEAE. 19. Coryphantha compacta (Engelmann). Mammillaria compacta Engelmann in Wislizenus, Mem. Tour North. Mex. 105. 1848. Cactus conipaclus Kuntze, Rev. Gen. PI. i: 260. 1891. Plants solitary, somewhat depressed, 3 to 6 cm. high, 5 'o 8 cm. broad; tubercles in 13 rows, much crowded, 8 mm. long, sulcata above; radial spines 14 to 16, rigid, appressed. interwoven with adjacent ones, whitish, 10 to 20 mm. long; central spines usually wanting; flowers 2 cm. long and broad, yellow; fruit oval; seeds smooth and yellow. Type locality: Cosihuiriachi, Chihuahua. Distribution: Mountains of Chihuahua. This species had long been known only from the original plant collected by Wislizenus, but in 1908 Dr. Rose visited the type locality, where he re-collected the plant, which later flowered at Fig. 32.—Coryphantha nickelsae. Fig. 33.—Coryphantha compacta. The name Coryphantha compacta occurs in C. R. Orcutt's Circular to Cactus Fanciers, 1922. Illustrations: Cact. Mex. Bound, pi. 74, f. 2 (seeds); Diet. Gard. Nicholson Suppl. 515. f. 548; Bull. U. S. Dfept. Agr. Bur. PI. Ind. 262: pi. 2, f. i; Watson, Cact. Cult. ed. 2. 254. f. 95; ed. 3. 76. f. 35, as Mainmillaria compacta. Figure 33 is from a photograph of the plant collected by Dr. Rose. 20. Coryphantha radians (De Candolle). Mammillaria radians De Candolle, Mem. Mus. Hist. Nat. Paris 17: iii. 1828. Mammillaria impexicoma Lemaire, Cact. Aliq. Nov. 5. 1838. Mammillaria daimonoceras Lemaire, Cact. Aliq. Nov. 5. 1838. Mammillaria radians globosa Scheidweiler, Bull. Acad. Sci. Brux. 5: 494. 1838. Mammillaria cornifera impexicoma Salm-Dyck, Cact. Hort. Dyck. 1849. 20. 1850. Echinocactus corniferus impexicomus Poselger, Allg. Gartenz. 21: 102. 1853. Echinocactus radicans Poselger, Allg. Gartenz. 21: 107. 853. Coryphantha daimonoceras Lemaire, Cactees 35. 1868. Cactus radians Kuntze, Rev. Gen. PI. i: 261. 1891. Cactus radians
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