OrUNTlA. 



55 



Illustrations: 



from 



Mag 



Pac. R. Rep. 4: pi. 16. 



14. Opuntia viridiflora sp. nov. 



A low, round, bushy plant 30 to 60 cm. high; terminal joints 5 to 7 cm. long, f .5 to 2 cm. thick, 

 often quite fragile; areoles prominent, flattened from the sides; areoles circular, filled with short, 

 yellow or dull-gray wool; spines 5 to 7, somewhat spreading, the longest ones 2 cm. long, dark brown 

 in color; glochids numerous, very short, yellow; flowers at tips of branches in clusters of 3 to 8, 3.5 

 to 4.5 cm. long (including ovary), "green, tinged with red*'; fruit strongly tuberculate, except for a 

 few long, deciduous bristles, with a deep umbilicus; seeds smooth, white, 3 mm. broad. 



i' 



Fig. .64. — Opuntia davisH. X0.5 



Fig. 65. — Opuntia viridiflora. X0.5. 



Fig. 66. — Opuntia whipplei. X0.5 



« ■ 



Santa Fe, New Mexico, altitude about 2,225 meters 



July 6, 191 1 (No. 6493, type) and at the same 



912, and by J. N. Rose m 19 

 Santa Fe about Fort Marcy 



It is quite common on the hills just 



observed 



LAX ^XXbVV -*■ X^*^''^^'^'' ■ 



from Opuntia imbricata with which it is found, in its much 



more 



smaller 



Figure 65 represents two joints of a specimen collected by Dr. Rose at the type locality 



m 1913. 



15. 



whipplei E 



1856. 



Low 



Opuvtia whipplei laevior Kngelmann, Proc. Amer. Acad. 3 : 307. 1856. 



cm 



to 15 

 >. the 





^ 



