BRITTON AND ROSE] OPUNTIOIDEAE OF NORTH AMERICA 505 



OPUNTIA EMORYI Engelm. 



Opuntia cmoryi Engelm. Proc. Am. Acad. 3: 303. 1856. 



Type locality : Arid soil, El Paso, Texas. 



Distribution : Western Texas to Arizona and northern Mexico. 



Illustrations: Cact. Mex. Bound, pis. /O, 71; Cact. Journ. 1: 154. 



OPUNTIA SCHOTTII Engelm. 



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



Type locality: Arid soil near the mouth of the San Pedro and 

 Pecos, western Texas. 



Distribution : Southern Texas and northern Mexico. 

 Illustration : Cact. Mex. Bound, pi. 73. figs. 1—3. 



OPUNTIA SCHOTTII GREGGII Engelm. 



Opuntia schottii greggii Engelm.; Coult. Contr. Nat. Herb. 3: 444. 1896. 



Type locality: San Luis Potosi. 



Distribution : Only known from type collection. 



Illustration : Cact. Mex. Bound, pi. 75. fig. 4. 



OPUNTIA CLAVATA Engelm. 



Opuntia clavata Engelm. in Wisliz. Mem. North. Mex. 95. 1848. 



Type locality : Albuquerque, New Mexico. 

 Distribution : Nevada and New Mexico. 



Illustrations : Pac. R. Rep. 4: pi. 22. figs. 1—3; pi. 24. fig. 6; Cact. 

 Mex. Bound, pi. 73. figs. 5, 6. 



OPUNTIA PARRYI Engelm. 



Opuntia parryi Engelm. Am. Journ. Sci. II. 14:339. 1852. 



Type locality : Plains of the Mohave River, California. 



Distribution : Southern California. 



Illustrations: Pac. R. Rep. 4: pi. 22. figs. 4-7; Cact. Journ. 1 : 132. 



OPUNTIA KUNZEI Rose, sp. nov. 



Stem 10 to 15 cm. high, much branched; joints somewhat clavate, 

 light bluish green, 8 to 10 cm. long, strongly tubercled ; spines 

 numerous, the longest 4 cm. long, somewhat reddish when young; 

 leaves linear, acute, 8 to 10 mm. long ; Mowers deeply set in the apex 

 of the joint-like ovary, fragant, 2.5 cm. long, 4 to 5 cm. broad when 



