Horticultural Hall^ Fairmount Park. 
Opuntia salrniana. Brazil, 
senilis. Peru, 
spinocentra. 
spinosissima. 
strict a. South America, 
sulphurea. Arfientina. 
tomento-a. South America, 
triacantha. 
Tuna. South America. 
EUPHORBIACEAE. 
Pedilanthus paclifolius. South America. 
" tithymaloides. Jew-hush. South 
America. 
CACTEAE. 
Pereskia aculeata. West Indies. 
Phyllocactus hitifrons. ^Mexico. 
" phyllanthoides. ]\Iexico. 
" Numerous garden liyljrids. 
Rhipsalis repens. 
" salicornoides. Willow Cactus. Brazil. 
CRASSULACEAE. 
Rochea longifolia. South Africa. 
Sedum album. Stone crops. England. 
" anopetalum. Stone crops. Southern 
Europe. 
" aureum. Stone crops. 
" dasyphyllum. Stone crops. Great Brit- 
ain. 
" dendroideum. Stone crops. Mexico. 
" hybridum. Stone crops. Siberia. 
" prealtum. Stone crops. 
" reflexum var. major. Stone crops. Great 
Britain. 
CRASSULACEAE. 
Sempervi^n.^n arachnoideum. House-leek. 
Southern Europe. 
" arboreum. [House-leek. Mediter- 
ranean. 
" calcareum^ major. House-leek. 
France. 
