. The Cactaceae : descriptions and illustrations of plants of the cactus family. 52 THE CACTACEAE. 1. Neobesseya wissmannii (Hildmann). Mammillaria siinHis robustior Engelmann, Bost. Journ. Nat. Hist. 6: 200. 1850. Mammillaria nuttaUii robustior Engelmann, Proc. Amer. Acad. 3: 265. 1856. Maiumillaria missouriensis robustior S. Watson, Bibl. Index i: 403. 1878. Cactus missouriensis robustior Coulter, Contr. U. S. Nat. Herb. 3: iii. 1894. Mammillaria wissmannii Hildmann in Schmnann, Gesamtb. Kakteen 498. 1898. Cactus robustior Small, Fl. Southeast. U. S. 812. 1903. Plant solitary, or forming mou
. The Cactaceae : descriptions and illustrations of plants of the cactus family. 52 THE CACTACEAE. 1. Neobesseya wissmannii (Hildmann). Mammillaria siinHis robustior Engelmann, Bost. Journ. Nat. Hist. 6: 200. 1850. Mammillaria nuttaUii robustior Engelmann, Proc. Amer. Acad. 3: 265. 1856. Maiumillaria missouriensis robustior S. Watson, Bibl. Index i: 403. 1878. Cactus missouriensis robustior Coulter, Contr. U. S. Nat. Herb. 3: iii. 1894. Mammillaria wissmannii Hildmann in Schmnann, Gesamtb. Kakteen 498. 1898. Cactus robustior Small, Fl. Southeast. U. S. 812. 1903. Plant solitary, or forming mounds 2 to 3 dm. in diameter and i dm. high with 25 heads or more; areoles elliptic when young, conspicuously white- woolly, the head usually globose, tubercles rather large, spreading, somewhat narrowed towards apex; spines 7 to 14, when young white to brownish, in age gray with yellow swollen base, acicular, to 2 cm. long, sometimes all radial and spreading, rarely i or 2 centrals and these porrect; flowers large, 4 to 5 cm. long, dark yellow; scales on flower-tube strongly nerved; margin of perianth-segments naked; inner segments abruptly long-apiculate; fruit globose, 8 mm. in diameter. Type locality: Not cited, presumably Texas. Distribution: Central Texas. Illustration: Bliihende Kakteen i: pi. 5, as Mammillaria wissmannii. Figure 50 is a reproduction of the illustration cited above. Fig. 50.—Neobesseya wissmannii. 2. Neobesseya similis (Engelmann). Mammillaria similis Engelmann, Bost. Journ. Nat. Hist. 5: 246. 1845. Mammillaria similis caespitosa Engelmann, Bost. Journ. Nat. Hist. 6: 200. 1850. Echinocactus similis Poselger, AUg. Gartenz. 21: 107. 1853. Mammillaria nuttallii caespitosa Engelmann, Proc. Amer. Acad. 3: 265. 1856. Mammillaria missouriensis caespitosa S. Watson, Bibl. Index i: 403. 1878. Cactus missouriensis similis Coulter, Contr. U. S. Nat. Herb. 3: iii. 1894. Mammillaria missouriensis similis Schumann, Gesamtb. Kakteen 498. 1898. Cactus similis Small,
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