Procccdins^s of the Ohio State Aeadeiny of Science 115- 



a. Symplocos. (67). 



39. Stamens twice as many as the lobes of the white corolla 



or more ; style i ; stamens in i series, tlowers mostly 

 bisporangiate, leaves alternate and simple. Styracaceae. 



a. Mohrodendron. (68). 



40. Flowers regular; seeds 1-4; fruit a samara, drupe, or berry. 



Oleaceae. 

 a. Fruit a samara; leaves pinnate. Fraxinus. (69). 



a. b^"uit a drupe or berry; leaves simple, b. 



b. Flowers dioecious. Adelia. (70). 



b. Flowers bisporangiate, lobes of the corolla linear. 

 Chionanthus. (71 ). 

 40. Flowers irregular, zygomorphic; seeds numerous, capsule 

 ovoid, acute; stamens 4, didynamous ; pith with cavities. 

 Some — Scropulariaceae. 



a. Paulownia. (/2). 



40. Flowers irregular, zygomorphic ; seeds numerous, capsule 

 long, terete ; fertile stamens usually 2 ; pith solid. BiG- 



NONIACEAE. 



a. Catalpa. i/S). 



