136 PLANTS FOR WINDOW GARDENING. 



Thus treated, Callas bloom far more vigorously than when 

 kept growing all the year. 



There is a new dwarf Calla which is very pretty and de- 

 sirable where economy of room is an object, but it is not as 

 showy as the old kind. 



The Spotted-leaved Calla (Richardia albo maculata) is 

 valuable for its spotted arrow-shaped foliage ; the flower is 

 green and not showy : the plant dies down after blooming, 

 and must then be dried off. 



OXALIS. 



There are about a hundred species of these pretty bulbs, 

 some of which grow and bloom well in the window. 



The foliage is generally petiolate, and much resembles 

 clover. The flowers are mostly yellow, pink, red, or white, 

 and the various shades of these colors, and are often fra- 

 grant. 



They open in the sun, closing in dull weather and at 

 night. 



Many are free bloomers, and all are remarkably clean 

 plants, seldom being infested with insects. 



All are of low habit, and some are well adapted for hang- 

 ing baskets. 



