ERICACEAE. (HEATH FAMILY.) 287 



12. RHODODENDRON, L. ROSE BAY, HONEYSUCKLE. 



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

 allv somewhat irregular, 5-lobed. Stamens 5 or 10, mostly declined : anthers 

 opening liy terminal pores. Style single, elongated : stigma capitate. Cap- 

 sule 5-celled, a-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 : sta- 

 mens 5-7, the long jilaments and stifle, exserted: leaves deciduous. 

 * Flowers appearing with w before the leaves. 



1. R. nudiflorum, Torr. Branclilets hairy ; leaves obovate or oblong, 

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

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

 color, or sometimes yellow. Swamps and banks of streams. April -May. 



Shrub 4 - 6 high. There are many varieties. 



2. R. calendulaceum, Torr. Erauclilets hairy ; leaves oblong or 

 obovate, 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 name-color, very showy. 



3. R. Vaseyi, Gray. Brauchlets glabrous ; leaves thin, oblong or ob- 

 long-lanceolate, acute at both ends, the veins hirsute; pedicels glandular, 

 calyx truncate; corolla glabrous, rose-color, the 3 upper lobes shorter and 

 reflexed, all longer than the tube ; stamens 5-7, unequal ; capsule glandular. 



Mountains of North Carolina. May. 



# * F/oicers appearing after the lea res. 



4. R. viscosum, Torr. Brunchlets 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. 

 Swamps. July - August. Shrub 4- 6 high. Capsule hispid. 



5. R. arborescens, Torr. Branchlets smooth ; leaves smooth, obo- 

 vate, 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 fragrant. 



2. RHODODENDRON. Corolla bell-shaped, smooth: stamens 10: leaves 



coriaceous, evergreen. 



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

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

 rose-color, spotted within with yellow or green. Shady banks of streams on 

 the mountains of Georgia, and northward. July. Stem 6 -20 high. 

 Leaves 4'- 10' long. .Corolla 1' in diameter. 



7. R. Catawbiense, Michx. Leaves elliptic-oblong, obtuse at each 

 end, mucronate, smooth; the young ones 'and branchlets tomeutose; calyx 

 lobes small ; corolla purple ; pedicels and capsule rusty-pubescent. Highest 

 summits of the mountains of North Carolina. June. Shrub 3 -6 high. 

 Leaves 3' - 5' long. 



