86 Tiliacea— Tria. 
Besides the foregoing there is a set of fine large-leaved 
varieties or forms in cultivation, including 7. Mandshirica 
from Eastern Asia, probably a distinct species, with coarsely 
toothed deeply cordate leaves clothed with a grey pubescence 
beneath. 7. hybrida swpérba referred to the North American 
T. pubéscens, and 7. vitifolia to T. Europea. 
Orper XXV.—LINEA. 
This order taken in its widest sense includes a great many 
trees and shrubs, but the following characters apply to the 
typical genus, which alone concerns us. 
1. LINUM. 
Herbs, sometimes shrubby, glabrous, more rarely hirsute. 
Leaves alternate, rarely opposite, narrow, entire; stipules 
Fig. 56, Linum grandiflorum. (4 nat, size.) 
absent or glandular. Flowers in terminal or lateral racemose 
panicles or fascicled cymes, blue, white, yellow, or crimson. 
Sepals 5, entire. Petals 5, contorted, fugacious. Stamens 5, 
united at the base, alternating with 5 staminodes. Disk of & 
