XL. 2. THE TULIP TREE. 529 



made of the bark or cones, while green, and before the volatile 

 parts have escaped.* 



The small magnolia may be propagated by layers, which re- 

 quire two years to root sufficiently, and by seed. The seed 

 should be preserved in moist bog earth, and sown very early in 

 spring, in earth of the same kind. 



XL. 2. THE TULIP TREE. L1RIODENDRON. 



A genus of a single species, found only in North America. 

 The calyx is of 3 sepals which fall at the same time with the 

 petals ; the lily-like, bell-shaped corolla, of 6 petals in two rows ; 

 the stamens are very numerous, as are the small, imbricated, 

 1- or 2-seeded, winged ovaries or seed-vessels. 



The Tulip Tree. L. tulipifera. L. 



Figured in Catesby's Birds, Plate 48 ; Michaux, Sylva, II, Plate 61 ; Abbott's 

 Insects of Georgia, II, Plate 102 ; Bigelow's Medical Botany, Plate 31 ; 

 Audubon's Birds, I, Plate 12. 



The tulip tree is a tall, stately, upright tree, with a magni- 

 ficent, columnar trimk and an open head, rounded above. It 

 spreads little towards the root, but has large limbs, stretching 

 strongly upwards and throwing out branches at all angles. 

 The bark of the trunk is of a dark ash color, with very numer- 

 ous, small, superficial rugosities, though, when seen at a distance, 

 it has a somewhat smoothish appearance. The recent shoots 

 are of a bright brown, or chestnut color, smooth, with a gray- 

 ish bloom-like dust upon it, and distant, narrow dots. The 

 older branches are brown, and seem as if covered with a trans- 

 parent membrane. 



The terminal bud is formed by the two stipules cohering by 

 their edges, — into an oblong, rounded, purse-like sheath. On 

 opening this, a minute leaf is found, bent down and folded 

 together in a single fold, by the side of another, smaller sheath. 

 When opening naturally, the stipules expand and protect the 

 leaf till it attains its full size, when they are an inch or two 

 long, of a yellowish-green color, oblong, broader towards the 



* Bigelow, American Medical Botany, II, 71. 

 68 



