t J id 
558 ERICACEAE. (Vor. II. 
2. AZALEA I.. Sp. Pl. 150. 1753. 
Erect mostly tall branching shrubs, with alternate thin deciduous leaves. Flowers 
large, white, purple, yellow, pink, or orange, in terminal umbels developed from cone-like 
scaly buds. Calyx small or minute, 5-parted. Corolla funnelform, the tube mostly nar- 
row, the limb nearly regularly 5-lobed or somewhat 2-lipped. Stamens 5 (rarely 10), ex- 
serted, usually declined; anthers awnless, attached to the filaments by their backs, the cells 
opening by terminal pores; style slender, declined, exserted. Ovary 5-celled; ovules numer- 
ous in the cavities. Capsule oblong or linear-oblong, 5-celled, septicidally 5-valved from the 
summit, many-seeded. [Greek, dry, from its habitat.] 
About 4o species, natives of North America 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. 1. A. nudiflora. 
Leaves canescent beneath; corolla-tube glandular. 2. A. canescens. 
Flowers orange, yellow or red; leaves canescent beneath. 3. A. lutea. 
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 IL. Wild Honeysuckle. Pinkster-flower. Purple or 
Pink Azalea. (Fig. 2743.) 
Azalea nudifiora I. Sp. Pl. Ed. 2, 214. 1762. 
Rhododendron nudifiorum Torr. Fl. N. & Mid. U. 
S. 424. 1824. 
A shrub, 2°-6° high, branched above, often 
simple below, the twigs glabrous, or with stiff 
hairs. Leaves oblong or obovate, acute at both 
ends, short-petioled, hairy on the midrib and 
sometimes on the lateral veins beneath, glabrous 
or with a few scattered hairs above when old, 
sometimes canescent on the lower surface when 
unfolding, 2’-4’ long, the margins ciliolate; 
pedicels strigose, 4/’-7/’ long; flowers pink to 
nearly white, expanding before or with the 
leaves, faintly odorous, the limb somewhat 2- 
lipped, 114’-2’ broad, shorter than the narrow 
tube, which is pilose-pubescent and little or not 
at all glandular; stamens much exserted; cap- 
sule linear-oblong, strigose, 8’’-9’’ long, erect. 
In dry sandy or rocky woods and thickets, Maine 
to Illinois, south to Floridaand Texas. Ascends to 
3000 ft. in Virginia. Reported from Canada. Its 
fungus is called Honeysuckle- or Swamp-Apple. 
April-May. 
2. Azalea canéscens Michx. Moun- 
tain Azalea. (Fig. 2744.) 
Azalea canescens Michx. F1. Bor, Am. 1:150. 1803. 
Rhododendron canescens Porter, Bull. Torr. Club, 
16: 220. 1889. 
A branching shrub, 4°-15° high, the twigs 
glabrous or sparingly pubescent. Leaves oval, 
elliptic or sometimes obovate, wider and 
shorter than those of the preceding species, 
permanently more or less soft-canescent and 
pale beneath and stiff-hairy or pubescent on 
the veins, varying to nearly glabrous, the 
margins ciliolate-serrulate; pedicels glandular; 
flowers rose-color to white, very fragrant, ex- 
panding with or before the leaves; corolla limb 
often 2’ broad, about equalling the rather 
stout, densely glandular but scarcely viscid 
tube; stamens slightly exserted; capsule linear- 
oblong, narrowed above, glandular, 6’/-8’’ long. 
In woods, Massachusetts to the Catskill and 
Shawungunk Mountains, New York, Pocono 
plateau of Pennsylvania,south,especially along the 
Alleghanies,to Floridaand Louisiana. April-May. 
