RHODODENDRON 167 



5. R. nudiflorum (L. ) Torr. Pink Azalea. Pink Honeysuckle. 

 Deciduous shrub to 2 m. high or sometimes taller; twigs buff or 

 gray, sparsely long-hairy or glabrate; buds glabrous, glandular 

 or puberulous; capsules 1-2 cm. long with ascending long hairs, 

 not glandular. Woods, South Carolina and Tennessee to Massachu- 

 setts, New York, and Ohio (Fig. 246). 



6. R. roseum (Loisel. ) Rehd. Mountain Azalea . Hoary Azalea . 

 A deciduous branching shrub 1-5 m. high with buff or gray finely 

 pubescent twigs; buds puberulous; capsules glandular, 1. 2-1. 8 

 cm. long. Dry thickets, mostly in the mountains, Maine to Quebec, 

 south to Virginia and Missouri (Fig. 247). 



7. R. viscosum (L. ) Torr. Clammy Azalea . Swamp Honey- 

 suckle. Deciduous shrub to 3 m. high or sometimes taller, the 

 young twigs buff or gray, bristly with long hairs, becoming glab- 

 rate; buds puberulous; capsule 1-2 cm. long, glandular. Swamps, 

 mostly in the mountains, Maine to Ohio, south to South Carolina 

 and Tennessee (Fig. 248). 



8. R. arborescens (Pursh) Torr. Smooth Azalea. White 

 Honeysuckle . Spreading deciduous shrub or small tree, 2-6 m. 

 high; twigs usually entirely glabrous; buds and pedicels glabrous 

 except for occasional stalked glands; capsules oblong, densely 

 glandular, 1.2-1.6 cm. long. Swamps and stream-banks, mostly 

 in the mountains, Pennsylvania to Georgia and Alabama (Fig. 249). 



MENZIESIA Sm. (Ericaceae) 



Deciduous shrubs with shredding bark. Twigs slender; pith 

 small, continuous. Buds solitary, sessile, ovoid, small, the ter- 

 minal and flower buds larger. Leaf-scars crowded toward the tips 

 of the branches, small, triangular or linear; bundle-trace 1; 

 stipule-scars none. Fruit an ovoid capsule persistent in winter. 



1. M_. pilosa (Michx. ) Juss. Alleghany Menziesia . Shrub to 

 2 m. high, with slightly pubescent twigs; capsule about 4 mm. high, 

 bristly-glandular. Mountain woods, in the Alleghenies from Penn- 

 sylvania to Georgia (Fig. 250). 



KALMIA L. (Ericaceae) 



Evergreen shrubs or small trees. Twigs moderate or slender; 

 pith small, continuous. Buds minute, solitary, sessile; terminal 

 bud abortive. Leaves alternate (or seemingly opposite or in whorls 

 of 3), entire. Leaf-scars half-round or shield -shaped; bundle-trace 

 a transverse line; stipule -scars none. Fruit a small globose cap- 



