Circular No. 66, U. S. Dept. of Agricul 



PLATE 11 



( 



A.—Echinocereus dasyacanthus. Missouri Botanical Garden, 1914. B. — Astrophytum (Echino- 

 cactus) myriostigma. Missouri Botanical Garden, 1901. C—NeomammUlaTia geminispina (Mam- 

 miliaria bicolor cristata). Missouri Botanical Garden, 1904. U.—Echinocactus knippelianus. 

 Missouri Botanical Garden, 1901 



