70 Forest Club Annual 



stout light brown glabrous growing 

 darker in second year, buds one-eighth 

 inch long, scales light brown with pale 

 scattered hairs near apex. 



Q. platanoides (Lam.) Sudworth. 

 J2. Bark not forming papery plates. 

 ki. Buds glabrous dark red-brown one- 

 eighth inch long, broadly ovate ob- 

 tuse, twigs slender red and lustrous 

 or coated with glaucous bloom be- 

 coming ashy gray in second year. 

 Q. alba Linn. 



k2. Buds tomentose near margin of 

 scales, light brown obtuse, twigs 

 slender glabrous grayish brown be- 

 coming ashy gray or light brown, 

 buds one-eighth inch long. 



Q. lyrata Walt. 

 12. Buds acute. 



/r. Bud-scales with scarious margins. 

 ki. Scales erose, light brown lustrous, 

 buds acute one-eighth inch long, 

 twigs slender glabrous light brown 

 growing darker in second year. 



Q. imbricaria Michx. 

 k2- Bud-scales entire brown, margin 

 light, bud acute one-eighth inch 

 nearly one-fourth inch long, twigs 

 slender glabrous light brown be- 

 coming darker in second year. 



Q. acuminata (Michx.) Houba. 

 J2. Bud-scales without scarious margins. 

 ki. Twig stout pubescent dark brown 

 becoming brown or gray in second 

 year, buds acute one-eighth to one- 

 fourth inch long bright brown 

 scales minutely pubescent. 



Q. digitata (Marsh.) Sudworth. 

 ks. Twigs slender glabrous lustrous 

 brown growing darker in second 

 year, buds one-eighth inch long 

 gradually tapered to acute apex 

 light brown glabrous or often 

 minutely pubescent. 



Q. palustris Muenchh. 



