22 
Knickerbocker Nursery 
var. albescens. 2 x /i i n .$1.00 
var. columnaris. 2^2 to 4 in.$1.00 to $1.50 
var. glabrescens. 2 to 5 in.$1.00, $1.25, $1.50, $2.00 
var. glaucescens .$1.00 
var. mirbelli. 2 to 6 in.$1.00, $1.50, $2.50 
var. spiralis. 2 V 2 to 4 in.$1.00 to $1.50 
var. virens. 2^2 to 4 in.$1.00, $1.50 
Aztekium ritteri .$2.00 
Bartscbella schumanni. Southern Lower Calif. Rare.$1.00 
Bergerocactus emoryi. In the U. S. native of San Diego Co. 
and some of the Channel Islands, only. Yellow spined, 
slender cereus, different from any other cactus. Sensitive to 
cold.25c to $1.00 
Bergocactus emoryi 
Brittonia davisi. Tubercled ribbed barrel from Texas with 
slender, long, yellow, hooked spines.50c up 
Browningia candelaris. 3 in.50c 
Carnegiea gigantea. The Arizona giant.$1.00 up 
CEPHALOCEREUS 
The Cephalocerei are usually tall plants with long hairs or wool 
on them. 
Cephalocereus senilis —The Old Man 
