Genus 2. 



HEATH FAMILY. 



679 



4. Azalea arborescens Pursh. Smooth or 

 Tree Azalea. Fig. 3218. 



A::alea arborescens Pursh. Fl. Am. Sept. 152. 1814. 



Rhododendron arborescens Torr. FI. N. & Mid. U S 

 425. 1824. 



A shrub, 8°-20° high, glabrous or nearly so 

 throughout. Leaves obovate, oblanceolate or oval, 

 acute at both ends or sometimes abruptly acuminate 

 at the apex, manifestly petioled, firm, bright green 

 and shining above, light green beneath, 2-4' long, 

 fragrant in drying, the margins ciliate; flowers 

 white, or tinged with pink, very fragrant, the limb 

 nearly regular, ii'-2' broad, about as long as the 

 slender glandular tube; pedicels short, glandular; 

 stamens and style red, long-exserted ; capsule ob- 

 long, densely glandular, 6"-8" long. 



In woods, southern Pennsylvania to Georgia and 

 eastern Tennessee. Ascends to 2500 ft. in North Caro- 

 lina. Smooth honeysuckle. June-July. 



5. Azalea viscosa L. Swamp Pink or Honeysuckle. White Azalea. Fig. 3219. 



A:::alea viscosa L. Sp. PI 



151- 1753- 



Rhododendron viscosiim Torr. Fl. N. & Mid. U. S. 

 424. 1 824. 



A shrub, i°-8° high, usually much branched, 

 the twigs hairy. Leaves obovate-oblong to 

 oblanceolate, 1-4' long, very short-petioled, 

 obtuse and mucronulate or acute at the apex, 

 narrowed at the base, glabrous or with a few 

 scattered hairs above, more or less bristly hairy 

 on the veins beneath, ciliolate, green on both 

 sides, or glaucous beneath; flowers white, or 

 sometimes pink, fragrant, later than the leaves ; 

 pedicels glandular, or bristly -hispid ; corolla li'- 

 2' long, the limb 1-2' broad, more or less 

 2-lipped, much shorter than the slender, very 

 viscid, densely glandular tube ; capsule 5"-7" 

 high, glandular-bristly. 



In swamps, Maine to Ohio, Arkansas, Florida and 

 Texas. Consists of several races differing in pu- 

 bescence, size and shape of leaves and color of 

 flowers. Clammy azalea. Meadow-pink. White or 

 clammy honeysuckle. June-July. 



3. RHODORA L. Sp. PI. Ed. 2, 561. 1762. 



A branching shrub, with deciduous oval or oblong short-petioled alternate leaves. Flo\v- 

 ers umbellate or short-corymbose, short-pedicelled, rose-colored, purple, or nearly white, from 

 terminal scaly buds. Calyx minute. Corolla 2-lipped, the upper lip unequally 2-3-lobed, the 

 lower divided to the base, the segments recurved'. Stamens 10, about equalling the corolla ; 

 anthers awnless, attached by their backs to the filaments, opening by terminal pores. Ovary 

 S-celled; ovules numerous in the cavities; style slender, slightly exserted ; stigma capitate. 

 Capsule linear-oblong, 5-celled, septicidally S-valved from the summit, many-seeded. [From 

 the Greek, rhodon, a rose.] 



