EEICACEiE. (heath FAMILY.) 265 



11. MENZIESIA, Smith. 



Calyx 4-toothed. Corolla ovoid, 4-toothed. Stamens 8, included: anthers 

 awnless, opening by terminal pores. Stigma obtuse. Capsule woody, 4-celled, 

 4-valved, opening septicidally, many-seeded. — Shrubs, with entire alternate 

 membranaceous leaves, and nodding greenish-white flowers in terminal clusters, 

 appearing with the leaves. 



1. M. globularis, Salisb. — Mountains of North Carolina. July. — A 

 straggling shrub, 3° - 6° high. Leaves deciduous, oblong, acute, hairy, glaucous 

 beneath, glandulai'-pointed. 



12. EHODODENDEON, L. Eose-Bat. Honeysuckle. 



Calyx mostly minute, 5-toothed. Corolla bell-shaped or funnel-shaped, usu- 

 ally somewhat Irregular, 5-lobed. Stamens 5 or 10, mostly declined : anthers 

 opening by terminal pores. Style single, elongated : stigma capitate. Capsule 

 5-celled, 5-valved, many-seeded. Seeds minute, scale-like. — Shrubs or small 

 trees. Leaves alternate, entire. Flowers showy, in terminal clusters from large 

 scaly buds. 



5 1. Azalea. — Corolla funnel-shaped, mostly glandular-viscid externally : stamens 



5 : the long ^filaments and style exserted: leaves deciduous, 



* Flowers appearing with or before the leaves, 



1- Bi. nudiflorum, Torr. Branchlets hairy; leaves obovate or oblong, 

 pubescent, soon smoothish above ; calyx-lobes minute ; tube of the corolla finely 

 pubescent, rather longer than the lobes ; corolla white, varying to deep rose-color, 

 or sometimes yellow. — Swamps and banks of streams, Florida to Mississippi, 

 and northward. April and May. — Shrub 4° - 6° high. There are many va- 

 rieties. 



2. R. calendulaeeum, Toit. Branchlets hairy ; leaves oblong or obo- 

 vate, hairy ; calyx-lobes conspicuous ; tube of the corolla hairy, shorter than 

 tlie lobes. — Woods on the mountains of Georgia, and northward. May. — 

 Shrub 3° - 10° high. Flowers flame-color, very showy. 



* * Flowers appearing after the leaves. 



3. R. viseosum, Torr. Branchlets bristly; leaves coriaceous, obovate, 

 vfith the margins and veins beneath hirsute, green on both sides or glaucous 

 beneath ; corolla glandular-viscid, white ; calyx-teeth minute, rounded. — 

 Swamps, Florida to Mississippi, and northward. July and Aug. — Shrub 4°- 

 6° high. Capsule hispid. 



4. R. arborescens, Torr. Branchlets smooth ; leaves smooth, obovate, 

 ciliate on the margins, pale beneath ; corolla glandular-viscid, rose-color; calyx- 

 lobes conspicuous, acute. — Mountains of Georgia, and northward. June. — 

 Shrub 3° - 10° high. Flowers ffagrant. 



§2. Rhododendron. — Corolla bell-shaped, smooth : stamens 10: leaves coria- 

 ceous, evergreen. 



5. R. maximum, L. Leaves obovate-oblong, abruptly acute, smooth and 

 green on both sides ; caly.vlobes conspicuous, rounded ; corolla white or rose- 



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