Procccdiiii^s of f/ic Ohio State Aantciiiy of Science 149 



complete stipular rings. Flowers bisporangiate, large, solitary. 

 Buds covered with conduplicate sheathing stipules. Pith usually 

 diaphragnied but solid. Fruit aggregate, cone-like. 



1. Lea\'es aiiriculate. glalirous. Leaf buds glabrous. M. fi-ascri. 

 1. Leaves rounded or truncate at the base, thin. Leaf buds silky pubes- 

 cent. ,1/. acitiuiinita. 



1. Leaves acute at the base. 2. 



2. Leaves light green beneath. 1-2 ft. long. Leaf buds glabrous. .1/. 



tripcfala. 

 2. Leaves glaucous beneath, ."i-ii in. long. Leaf buds pubescent. M. 

 1^il^iiil!ialla. 



1. Magnolia fraseri Walt. Fraser Magnolia. A tree 

 with spreading branches and glabrous leaf buds. Leaves elon- 

 gated-obovate or oblong, auriculate. 4-2 ft. long ; flowers white. 

 In mountain woods. \'a. and Ky. to Fla. and Miss. 



2. Magnolia tripetala L. Umbrella Magnolia. A low 

 tree with glabrous leaf-lnids and irregular branches. Leaves 

 obovate, acute, cuneate at the base, i-2 ft. long, flowers white, 

 slightly odorous, ^^^ood soft and light. Penn. to Ga., Ark., and 

 Miss. ' 



3. Magnolia virginiana L. Laurel ^lagnolia. A tree 

 with pubescent leaf buds. Leaves oval or oblong, acute at the 

 base, 3-6 in. long; flowers white, deliciously fragrant. In 

 swamps. Mass. to Penn., Fla., and Tex. 



4. Magnolia acuminata L. Cucumber Magnolia. .\ 

 large tree with silky pubescent leaf-buds. Leaves oval, acute or 

 somewhat acuminate, rounded or truncate at the base |-i ft. long; 

 flowers greenish-yellow. Wood soft, light, and durable ; used 

 for cabinet-work, pump-logs, and water-troughs. N. Y. to Ohio 

 and 111.. Ga.. Ala., and Ark. 



33. Liriodendron L. Tuliptree. 



Trees with alternate truncate leaves, diaphragmed but solid 

 pith, and complete stipular rings. Fruit aggregate, cone-like. 



I. Liriodendron tulipifera L. Tuliptree. A very large, 

 magnificent, rapid-growing tree with glabrous leaf -buds. Flowers 

 greenish-yellow, orange-colored within. Buds covered with con- 



