532 SMITHSONIAN MISCELLANEOUS COLLECTIONS [VOL. 50 



Chihuahua (no. 223), in the herbarium of the Missouri Botanical 

 Garden, and labeled by Dr. Engelmann as O. engehnanni Salm-Dyck, 

 shows that this species is of the series Fulvispinosae, rather than the 

 series Tunae. 



OPUNTIA ENGELMANNII CYCLODES Engelm. 



Opuntia engclmannii cyclodes Engelm. Proc. Am. Acad. 3:291. 1856. 

 Opuntia lindheimeri cyclodes Coult. Contr. Nat. Herb. 3:422. 1896. 



Type locality : "On the Upper Pecos, in New Mexico. 

 Distribution : Western Texas and New Mexico. 

 Illustrations : Pac. R. Rep. 4: pi. 8. fig. 1; pi. 22, figs. 8, 0. 



OPUNTIA VASEYI (Coult.) Britton & Rose 



Opuntia mesacantha vaseyi Coult. Contr. Nat. Herb. 3:431. 1896. 



Type locality : "Yuma." 



Distribution: Southwestern Arizona. 



In our opinion clearly of this series rather than Vulgares. 



OPUNTIA CYMOCHILA Engelm. 



Opuntia cymochila Engelm. Proc. Am. Acad. 3:295. 1856. 



Opuntia mesacantha cymochila Coult. Contr. Nat. Herb. 3:430. 1896. 



Type locality : Along the Canadian River east of Llano Estacado, 

 New Mexico. 



Distribution : New Mexico and Arizona. 



Illustrations: Pac. R. Rep. 4: pi. 12. figs. /-?; pi. 23. figs. 10-12. 



Likewise to be included in Fulvispinosae rather than Vulgares. 



OPUNTIA ANGUSTATA Engelm. 



Opuntia angustata Engelm. Proc. Am. Acad. 3:292. 1856. 



Type locality: Zuni, New Mexico. 



Distribution : Supposed to extend from New Mexico to California, 

 but doubtless not found in California. 



Illustration : Pac. R. Rep. 4 : pi. 7, fig. 3. 



Engelmann's descriptions and illustrations of this species include 

 two, if not three, distinct ones belonging to F«ulvispinosae rather 

 than Procumbentes. 



OPUNTIA COVILLEI Britton & Rose, sp. nov. 



Joints obovate, 10 to 20 cm. long or more ; areoles 2 to 4 cm. apart, 

 pale green, sometimes purplish, slightly glaucous; spines slender, 



