ERICACEAE. (HEATH FAMILY.) 205 



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, glandular-pointed. 



12. RHODODENDRON, L. Rose-Bay. 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. 



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



5 : the long filaments and style asserted: leaves deciduous. 



* Flowers appearing with or before the leaves. 



1 R. nudiflorum, Torr. Branchlets hair}-; 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. calendlllaceum, Torr. Branchlets hairy ; leaves oblong or obo- 

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

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

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



* * Flowers appearing' after tie leaves. 



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

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

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

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

 6° high. Capsule hispid. 



4. R. arboresceilS, Ton-. Branchlets smooth ; leaves smooth, obovate, 

 ciliare 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 fragrant. 



§ 2. Rhododendron. — Corolla bell-shaped, smooth: stamens 10: leave's coria- 

 ceous, evergreen. 



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

 green on both sides ; calyx-lobes conspicuous, rounded ; corolla white or rose- 



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