504 SMITHSONIAN MISCELLANEOUS COLLECTIONS [VOI,. 50 



LIST OF THE SPECIES OF OPUNTIA 

 Series CLAVATAE 

 The series appears to be well characterized by the sheathless spines. 



OPUNTIA BRADTIANA (Coult.) K. Brandeg. 



Cereus bradtianus Coult. Contr. Nat. Herb. 3: 406. 1896 (April). 

 Grusonia cereiformis F. Reichb. Monatsschr. Kakteenk. 6: 177. 1896 



(August). 

 Opuntia bradtiana K. Brandeg. Erythea 5: 121. 1897. 

 Opuntia cereiformis Weber in Bois, Diet. Hort. 897. 1898. 



Type locality : Plains of Coahuila. 



Distribution : Coahuila, Mexico. 



Illustration : Schum. Gesamtb. Kakteen fig. 101. 



OPUNTIA INVICTA Brandeg. 



Opuntia invicta Brandeg. Proc. Cal. Acad. II. 2: 163. 1889. 



Type locality : San Juanico, Lower California. 

 Distribution : Lower California. 

 Illustration : Cact. Journ. i : 2. 



OPUNTIA PULCHELLA Engelm. 



Opuntia pulchella Engelm. Trans. St. Louis Acad. 2: 201. 1863. 



Type locality : Sandy deserts on Walker River, Nevada. 

 Distribution: Nevada and Arizona. 



OPUNTIA BULBISPINA Engelm. 



Opuntia bulbispina Engelm. Proc. Am. Acad. 3: 304. 1856. 



Type locality: Saltillo, Mexico. 

 Distribution : New Mexico to Coahuila. 

 Illustration : Cact. Mex. Bound, pi. 73. figs. 5, 6. 



OPUNTIA GRAHAMI Engelm. 



Opuntia grahami Engelm. Proc. Am. Acad. 3: 304. 1856. 



Type locality: Sandy bottoms of the Rio Grande near El Paso, 

 Texas. 



Distribution: New Mexico and Texas. 

 Illustration : Cact. Mex. Bound, pi. f2. 



