MAGNOLIA 95 



b. Leaf-buds silky-hairy 2. M. acuminata 



b. Leaf-buds glabrous 



c. Terminal buds about 2. 5 



cm. long 4. M. fraseri 



c. Terminal buds 3.5-5 cm. 



long 3. M. tripetala 



1. M. virgLniana L. Sweet Bay. Small Magnolia. Large shrub 

 or small tree up to 20 m. high, buds silky; branchlets glabrous 



or glabrate; leaves evergreen (or deciduous northwards), oval to 

 broadly lanceolate, obtuse, glaucous, 0. 8-1. 5 dm. long. Swamps 

 and wet woods, mostly in the coastal plain, Florida to Texas, 

 north to Massachusetts, Tennessee, and Arkansas (Fig. 102). 



2. M. acuminata L. Cucumber-tree. A tree 20-40 m. high, 

 6-12 dm. in diameter; bark grayish-brown, furrowed; twigs mod- 

 erate; leaf -buds silky, 10-20 mm. long; leaf-scars U-shaped. 

 The common name refers to the shape of the young fruit; only 

 vestiges of the fruits are present in winter. Rich woods. New York 

 and Ontario, south chiefly in the mountains, to Georgia and Arkan- 

 sas (Fig. 103). 



3. M. tripetala L. Umbrella Magnolia. A small tree 8-15 m. 

 tall, 2.5-4 dm. thick; leaf-buds glabrous, purple, 3.5-5 cm. long, 

 acute; leai-scars large, oval. Rich woods, mostly in the mountains, 

 Georgia to Arkansas, north to Pennsylvania and Missouri (Fig. 104). 



4. M. fraseri Walt. Fraser Magnolia . A slender tree 9-20 m. 

 tall, 3-4. 5 dm. thick; bark smooth, dark brown; leaf-buds gla- 

 brous, purple, 2.5 cm. long; twigs glabrous and glaucous, rela- 

 tively slender; leaf-scars roimded. Rich woods, mostly in the 

 mountains, Virginia and West Virginia to Georgia and Alabama 

 (Fig. 105). 



LIRIODENDRON L. (Magnoliaceae) 



Large deciduous trees. Twigs moderate, terete; pith rounded, 

 pale, continuous, with firmer plates at intervals. Buds solitary 

 or superposed, the lateral small, isessile, the terminal much lar- 

 ger, oblong, somewhat stalked, compressed, with 2 valvate scales 

 (morphologically stipules of the topmost leaf, as in Magnolia ). 

 Leaf-scars alternate, large, roimd; bundle-traces many, in an 

 irregular ellipse; stipule-scars linear, encircling the twig. Fruit, 

 in the form of cone-like aggregates of samaras, present in winter. 



1. L. tulipifera L. Tuliptree . Yellow- Poplar . A beautiful tree 



