ECHINOCA0TU*. 59 



4 inches long, most of which are sharply hooked and coloured dark 

 brown. Flowers 2| inches long and wide, red or yellow. 

 California. 



E. scopa. 



fttem sometimes 1.1 feet, with from thirty to forty ribs, 

 bearing little disks of white wool at the bases of the clusters of 



Fig. 28. Echinocactus scopa. 



spines. (Fig. 28.) Flowers U inches long and wide, tube short, 

 bristly ; petals sulphur-yellow ; stigma bright crimson. Brazil, 1840, 

 It flowers in June, requiring stove treatment. There is a crested 

 variety (cristata). 



E. Simpsoni. 



One of the smallest and prettiest in the genus. It forms tufts 

 of stems about 4 inches high, with rounded tubercles, each with a 

 tuft of about twelve spines \ inch loner, Flowers 1 inch wide and 

 long, cup- shaped ; petals pale purple ; stamens yellow. Mexico and 



