316 



Catalogue of the Qadi 



91 species nova ; -white, numerous, 



and straight spines. 5 in. high, 

 and 2i in. in diameter. 



92 erecta. 9 in. high, and 2 in. in 



diam. — Syn. M. evanescens. 



^ ii. Heads ovate or globular. Teats 

 ovate, comjiressed, channeled. 



93 elephantidens. 3 in. high, and 



2iin. in diameter. 



94 recurva. Sin. high, and 2iin. 



in diameter. 

 93 impexicoma. 3^ in. high, and 



4 in. in diameter. — Syn. M. 

 radians. 



96 scepontocentra. 3 in. high, and 



4^ in. in diameter. 



§ iii. Teats most robust, shorter, and 

 broadly lobed. 



97 latimamma. Sin. high, and 6 in. 



in diameter. 



98 pycnacantha. 4 in. high, and 



4 in. in diameter. 



99 species nova. Sin. high, and 



5 in. in diameter. 



Genus III. ECHINOCA'CTUS. 



Surface angled or furrowed. Flowers short and broad, produced at the 

 fascicles of spines, generally at the umbilicus at the top of the plant. 

 Capsule dry, generally concealed in an especial envelope of down, or else in 

 the tomentum of the umbilicus. Fascicles of spines downy ; down confined 

 to the fascicles. 



Sect. I. ScoPiE'^. 



4 in. 



Cereus 



1 scopa. 14 in. high, 



in diameter. — Syn. 

 scopa; Cactus scopa. 



2 s. 2 Candida. 8 in. high, and 2 in. 



in diameter. 



3 s. 3 cribtata. 3 in. high, and 3 in. 



long. — Syn. E. scopa mon- 

 strosa. 



4 pectinifera. 4J in. high, and Sin. 



Angles small and shallow. Spines slender and numerous. 

 Fascicles small and prominent. 



and 4 in. in diameter. — Syn. Echinoeac- 



tus pectinata ; Echinocactus pec- 

 tinifera. 



5 p. var. rubrospma. 2^ in. high, 

 and 2i in. in diameter. 



6 pijmila. 1 in. high, and 1 in. in 

 diameter. 



7 gracillima. Sin. high, and ^in. 

 in diameter. 



Sect. II. Gibbo^SjE. — Angles larger than those of the last section, formed of 

 gibbous tiibercles, confluent at their bases, having an acute tubercle at the 

 bottom of each fascicle. 



8 exsculpta. 6iin. high, and 2iin. 

 in diameter. — Syn. E. sub- 

 gibbosa ; E. acanthion-inter- 

 rupta ; E. crenata ; Cereus 

 raontevidensis. 



9. hybocentra. 9 in. high, and 5 in. 

 in diameter. 



10 ignota nova. 8 in. high, and 5 in. 



in diameter, 



11 gibbosa. Sin. high, 4 in. diam. 



— Syn.' Cereus gibbosus. 



12 g. var. nobilis. 7 in. high, and 



44 in. in diameter. 



13 centeteria. 2|in. high, and S^in. 



in diameter. 



14 ceratlstes. 2iin. high, and Sin. 



in diameter. 



15 pachycentra. 2^ in. high, and 



Si in. in diameter. 



16 Montivilbz. 2^ in. high, and 4 in. 



in diameter. 



17 hyptiacantha. 2iin. high, and 



2iin. in diameter. 



18 denudata. 2iin. high, and S^in. 



in diameter. — Syn. JS'chinops 

 denudatus. 



Sect. III. Angles small, obtuse ; having a teat, or prominence, betiveen the 



fascicles. 



Subsect. 1. Mammulo^s^. I 4|^ in. in diameter. — Syn. E. 



19 mammulosa. 4^ in. high, and ' hypocrateriformis. 



