Standley: Some Echinocerei of New Mexico 



87 



73; five miles east of Hillsboro, July 12, 1904, E. 0. Wooton 

 3004; also many plants growing in the cactus garden of the 

 Agricultural College, brought from the mesa west of the Organ 

 Mountains and from the Dona Ana Mountains. Arizona : Fort 

 Whipple, 1865, Coues & Palmer. 



Echinocereus neo-mexicanus sp. nov. 



Plant ovate-cylindrical, cespitose with (ew stems, obtuse at 

 apex, 18-25 cm - high, about 7 cm. in diameter, glaucous-green : 

 ribs 11-12, obtuse, rather low, 15-18 mm. apart, tuberculate ; 







A 



t 





r'G. 4. Exterior view of flower 



Echinocereus neo-wcxicaiius. 

 A «ual size. 



Fig. 5. 



Longitudinal section of 

 flower of Echinocereus neo-mexi- 

 canus shown in Fig. 4. 



areolae 10-15 mm. apart, oval, large : spines rather slender, terete, 

 spreading from the plant; centrals mostly 6, stouter than the 

 radials, rigid, spreading, the lowest one always very light-colored, 

 yellowish, almost white, the others reddish, giving the plant a dis- 

 nct] y reddish and variegated appearance ; superior radials 2-5, 

 Render, 4 _ 7 mni Iong> u^qu^ almost white; lateral radials 8. 

 IOUr on each side, spreading, 1 1-15 mm. long, the lowest longest, 

 01 ^e same color as the superior radials ; inferior radials 3, spread- 



