98 WINDOW AND PARLOR GARDENING 
greenish-yellow, dotted and blotched with black. The upper 
sepal edged and striped with pure white. C. barbatum has 
handsome mottled leaves and large erect flowers. | Upper 
sepal white with strong brown veins; lip blackish-purple ; 
petals bordered with hairy glands. C. Lawrencianum is a very 
floriferous species of the same type as the above. Flowers 
of a brownish-green color with white dorsal sepal and_black- 
purple veins. 
C. Spicerianum is a still more beautiful species, yellowish- 
green with a broad white up- 
per sepal with black veins. 
The Lady’s Slippers can be 
grown on year after year with- 
out rest. They require a tem- 
perature of about 70 degrees, 
and plenty of moisture. Large 
specimen plants when in flower 
are very showy. With C. in- 
signe flowering from Decem- 
ber to March, C. barbatum 
Lady's Slipper. Cypripedium insigne. from March to midsummer, and 
C. Spicerianum during the late 
autumn months, an almost continuous supply of flowers can be- 
had from these species alone. 
The above selection of Orchids have all been found to do 
well in dwelling-houses. They will perhaps, when better 
known, be more useful for this purpose than most other plants. 
