MAGNOLIACEAE. 63 
MAGNOLIA. 
(Family Magnoliaceae). 
Trees or shrubs: deciduous or 
evergreen. Twigs somewhat aro- 
matic, moderate or stout, or less 
commonly slender, subterete: 
pith rather large, continuous, 
round, sometimes with firmer 
diaphragms. Buds solitary, ovoid 
or fusiform, sessile, the terminal 
sometimes enlarged or the lateral 
greatly reduced, with a _ single 
scale keeled and with a scar on 
its back. lLeaf-scars_ alternate, 
commonly 2-ranked, moderate or 
small, round to U-shaped, low: 
bundle-traces numerous and scat- 
tered: stipule-scars linear, en- 
circling the twig. Leaves, when 
persistent, simple and entire. 
Winter-character references to 
Liriodendron and Magnolia under 
Schizandra. 
. Essentially evergreen: firm plates of pith evident. 2. 
Deciduous: pith diaphragms often sparse. 3. 
. Leaves thick: twigs rusty-pubescent. (1) M. grandiflora. 
Leaves thin or falling: twigs silvery. (2). M. glauca. 
. Leaf-scars clustered on annual swellings. 4. 
Leaf-scars not clustered: lateral buds evident. 6. 
. Glabrous and glaucous: twigs slender. (3). M. Fraseri. 
Puberulent, or twigs stout. 5. 
. Glabrous except near the end-bud. 
(Umbrella magnolia). M. tripetala. 
Downy: twigs very stout. 
(Great-leaved magnolia). M. macrophylla. 
