698 FLORA. 



somewhat rugose above, densely tomentose with brown wool beneath, 12-40 mn. 

 long; flowers 6-10 mm. broad; pedicels very pubescent, 12-25 mm> l n g * n fruit; 

 capsule scurfy, about 4 mm. high and 2 mm. in diameter, nodding; calyx -teeth 

 less than I mm. long, ovate, obtusish. In bogs, Newf. to Alaska. Also in north- 

 ern Europe and Asia. Summer. 



2. Ledura Groenlandicum OEder. LABRADOR TEA. (I. F. f. 2742.) A 

 shrub, 3-12 dm. high, similar to the preceding. Leaves 2.5-5 cm - l n g slightly 

 rugose above, densely brown-tomentose beneath; flowers 8-10 mm. broad; pedicels 

 2-2.5 cm. long and recurved in fruit; capsule canescent, nodding, 6-7 mm. long, 2-3 

 mm. in diameter. In bogs and swamps, Greenland to Br. Col., Mass., N. J. 

 and Wis. May -June. 



s. AZALEA L. 



Mostly tall shrubs, with alternate leaves. Flowers large, in terminal umbels 

 developed from cone-like scaly buds. Calyx 5 -parted. Corolla funnelform, the 

 tube mostly narrow, the limb nearly regularly 5-lobed or somewhat 2-lipped. 

 Stamens 5 (rarely 10), exserted, usually declined; anthers attached to the filaments 

 by their backs, the sacs opening by terminal pores; style declined, exserted. 

 Ovary 5-celled; ovules numerous. Capsule oblong or linear-oblong, 5-celled, 5- 

 valved from the summit, many-seeded. [Greek, dry, from its habitat.] About 40 

 species, natives of N. Am. and Asia. Besides the following, 2 others occur on the 

 Pacific coast. 

 Flowers expanding before or with the leaves. 



Flowers pink or white. 



Leaves strigose on the midrib beneath ; corolla-tube hirsute, i. A. nudiflora. 

 Leaves canescent beneath ; corolla-tube glandular. 2. A. canescens. 



Flowers orange, yellow or red ; leaves canescent beneath. 3. A, lutca. 



Flowers expanding later than the leaves. 



Leaves shining, glabrous beneath. 4. A. arborescens. 



Leaves strigose on the midrib beneath. 5. A. viscosa. 



1. Azalea nudiflora L. WILD HONEYSUCKLE. PINKSTER-FLOWER. PUR- 

 PLE OR PINK AZALEA. (I. F. f. 2743.) A shrub, 0.6-2.8 m. high. Leaves oblong 

 to obovate, acute at both ends, short -petioled, glabrous or with a few scattered 

 hairs above when old, 5-10 cm. long, the margins ciliolate; pedicels strigose, 8- 

 14 mm. long; flowers faintly odorous, the limb somewhat 2-lipped, 3.5-5 cm. broad, 

 shorter than the narrow tube, stamens much exserted; capsule strigose. 16-18 

 mm. long, erect. In dry woods and thickets, Me. to 111., Fla. and Tex. Reported 

 from Canada. April-May. 



2. Azalea canescens Michx. MOUNTAIN AZALEA. (I. F. f. 2744.) A 

 shrub, 12-45 dm. high. Leaves oval, elliptic or sometimes obovate. wider and 

 shorter than those of the preceding, pale beneath and stiff-hairy or pubescent on the 

 veins, varying to nearly glabrous, the margins ciliolate- serrulate; pedicels glandu- 

 lar; flowers very fragrant; corolla-limb often 5 cm. broad, about equalling the 

 rather stout, slightly viscid tube; stamens slightly exserted; capsule glandular, 12- 

 16 mm. long. In woods, Mass, and N. Y. to Fla. and La. April-May. 



3. Azalea lutea L. FLAME AZALEA. (I. F. f. 2745.) Similar to the two 

 preceding. Leaves obovate or oval, glabrous, or with some scattered hairs above, 

 the margins ciliolate-serrulate ; pedicels short, pilose or glandular; flowers slightly 

 fragrant; corolla-tube about the length of the nearly regular limb, glandular-pilose, 

 the limb often 5 cm. broad; stamens long-exserted; capsule about 16 mm. high. 

 In dry woods, N. Y. and Penn. to Ga. May-June. 



4. Azalea arborescens Pursh. SMOOTH OR TREE AZALEA. (I. F. f. 2746.) 

 A shrub, 2-6 m. high, glabrous or nearly so. leaves obovate, oblanceolate or 

 oval, acute or sometimes abruptly acuminate, petioled, firm, bright green above, 

 light green beneath, 5-10 cm. long, fragrant in drying, the margins ciliate; flowers 

 white, or tinged with pink, fragrant, the limb nearly regular, 3.5-5 cm. broad, 

 about as long as the slender glandular tube; stamens and style red, long-exserted; 

 capsule densely glandular, 12-16 mm. long. In woods, Penn. to N. Car. and 

 Tenn. June-July. 



5. Azalea viscosa L. SWAMP PINK OR HONEYSUCKLE. WHITE AZALEA. 

 (I. F. f. 2747.) A shrub, 1-2 m. high, the twigs hairy. Leaves obovate-oblong 



