56 THE FANTASTIC CLAN 



moist. They transplant readily In gravelly clay with water- 

 ing twice a month during dry spells, and should be set In par- 

 tial shade. 



Horned Toad Cactus (Mammillaria Maince) 



(Named for Mrs. F. M. Main, who first collected the plant 

 near Nogales, Mexico) 



How to identify and how it grows 



The Horned Toad Cactus grows from single stems, or sev- 

 eral In loose clumps and Is depressed globose or hemispher- 

 ical, growing as short as two or three inches, with a diameter 

 of three or four Inches. The tubercles are of a pale green, 

 arranged In thirteen spiral rows with compressed bases taper- 

 ing above and upturned. The texture of the plant Is flabby 

 and loose. There are not many spines in this species, twelve 

 wide-spreading yellowish radial spines and one central which 

 is much stronger than the radials and somewhat twisted and 

 curved. The flowers are quite slender and about one inch 

 long, both sepals and petals pointed. The former have a 

 brownish center while the latter have reddish centers with 

 white-fringed margins. The style is much longer than the 

 stamens. This plant is not conspicuous because it grows 

 quite close to the ground and Is not easily seen with its light- 

 colored spines. 



How to grow 



Plants grow outside in twenty degrees of frost, but with 

 colder weather than this they must be protected or grown In 

 warm conservatories. They grow easily from seed In the 

 usual way in pots with part shade and with occasional water- 

 ing to keep the soil moist. They may be transplanted 

 at any season in sandy or gravelly clay, and given enough 



