ERICACEAE 883 



b. Corolla-tube over 3 cm. long : Texan species. 6. A. oblongifoUa. 



B. Midnerve glabrous beneath at maturity. 



Leaf-blades broadest at the middle : corolla-tube contracted upward : Flor- 



idian species. 7. A. serrulata. 



Leaf-blades broadest above the middle : corolla-tube dilated upward : Appa- 

 lachian species. 8. A. arborescens. 



1. Azalea lutea L. A branching shrub 0.5-5 m. tall, with glabrate or sparingly 



pubescent foliage. Leaves unfolding after the corollas ; blades oval, elliptic or obovate, 



3-8 cm. long, usually acute at both ends, ciliate, more or less den.sely canescent beneath, 



short-petioled : pedicels stout, 0.5-1 cm. long, glandular-pubescent : corolla yellow to red, 



often variegated ; tube gradually dilated upward, 1.5-2.5 cm. long, glandular-pubescent : 



capsules oblong or oblong-ovoid, 1-2.5 cm. long, hirsute. \_A. calendulacea Michx.] 



In dry and rocky woods, New York to Pennsylvania and chiefly in the mountains to Georgia and 

 Alabama. Spring. Flame Azalea. 



2. Azalea canescens Michx. An asymmetrical shrub 1-5 m. tall, with more or less 

 densely pubescent young foliage. Leaves unfolding after the corollas ; blades thinnish, 

 oval or elliptic, varying to obovate, 2-8 cm. long, obtuse at the apex, or usually short- 

 acuminate at both ends, ciliate, canescent beneath : pedicels 1.5-2.5 cm. long, glandular : 

 corolla rose-colored to whitish ; tube 1.5-2 cm. long, widely dilated above the middle, 

 glandular : capsules oblong or ovoid-oblong, 1-2 cm. long, glandular-pubescent. 



In rocky woods, Massachusetts to New York, south, chiefly in the mountains, to Florida and Louisi- 

 a,na. Spring. Mountain Azalea. 



3. Azalea nudiflora L. An irregularly branching shrub 0.5-3 m. tall, with more or 



less densely pubescent young foliage. Leaves unfolding after the corollas ; blades firm, 



oblong to obovate, 3-10 cm. long, acute or short-acuminate at botli ends or apiculate at the 



apex : pedicels 1-2 cm. long, strigose : corolla pnnk to white ; tube gradually dilated above 



the middle, 1.5-2.5 cm. long, pilose and rarely sparingly glandular: capsules oblong or 



linear-oblong, 1-3 cm. long, strigose or hirsute-strigose. 



On dry hillsides and in wet woods, Maine to Illinois, south to Florida and Texas. Spring. Wild 

 Honeysuckle. 



4. Azalea cAndida Small. A rigid shrub 1-2 m. tall, with wide branching stems 

 and white-tomentose young foliage. Leaves unfolding before the corollas ; blades leathery, 

 obovate-oblanceolate or oblong, 1-5 cm. long, acute or apiculate, somewhat revolute, thinly 

 tomentose above, densely white-tomentose and reticulated beneath, short-petioled : corolla 

 white or pinkish ; tube about 2.5 cm. long ; limb about as broad as the length of the corolla- 

 tube : capsules 1.5-2 cm. long, canescent, curved. 



In hammocks along the Withlacoochee River, southern Georgia. Spring. 



5. Azalea viscosa L. A shrub 1-3 m. tall, with more or less densely pubescent 



young foliage. Leaves lirm ; blades oblong or elliptic-oblanceolate, cuneate or obovate, 



2-6 cm. long, obtuse or raucronate, ciliate, dull or shining, short-petioled ; pedicels 



glandtilar-hirsute : corolla white or pink ; tulse relatively slender, ratlier abruptly dilated 



near the limb, which is 2-3 cm. "broad : capsules 1.5-2 era. long, hirsute. 



In swamps, Maine t© Ohio, south to Florida and Texas. Spring and summer. Swamp Honey- 

 suckle. 



6. Azalea oblongifolia Small. A shrub 1-2 m. tall with branching erect or more or 

 less spreading stems. Leaves rather firm ; blades oblong or oblong-oblanceolate, 5-10 cm. 

 long, mucronate, dull and strigillose on both surfaces, ciliate, short-petioled : pedicels 

 glandular-hirsute, 1-1.5 cm. long : corolla white or pinkish, glandular-pubescent ; tube 

 stoutish, over 3 cm. long, rather abruptly dilated near the limb. 



In sandy bogs, Tom Green County, Texas. Spring. 



7. Azalea serrulata Small. An asymmetrical shrub 2-4 m. tall, with almost glabrous 

 foliage. Leaves clustered at tlie ends of the branches : blades thinnish, oblong to oval or 

 elliptical-oblanceolate, 4-9 cm. long, mucronate, lustrous, serrulate with bristle-tipped 

 teeth, narrowed into short petioles : clusters few-flowered : pedicels rather slender, 9-13 

 mm. long, glandular-hirsute : corolla white : tube more or less expanded at each end, 

 2.5-3 cm. long, glandular-hirsute. 



In wet hammocks, Lake County, Florida. Spring. 



8. Azalea arborescens Pur,sh. A shrub or small tree 0.5-6 m. tall, with almost 

 glabrous foliage, fragrant in drying. Leaves firm ; blades elliptic, oval, oblanceolate or 

 cuneate, 4-10 cm. long, usually abruptly pointed at the apex, ciliate, usually lustrous 

 above, short-petioled : pedicels 5-10 mm. long : corolla white or pink ; tube dilated above 

 the middle, about 2.5 cm. long, glandular-pilose ; limb 4-5 cm. broad ; lobes irregularly 

 spreading : styles red : cap.sules oblong, 1-2 cm. long, bristly-glandular. 



Along streams in the mountains, Pennsylvania to Georgia. Spring and summer. 



