364 DECANDRIA MONOGYNIA. 



HAB. Sandy woods and swamps. June July. Shrub 2 feet high 



Jjl. smaller, deeper rose-col. 

 K. glauca: branches ancipitous; leaves opposite, subsessile, oblong, 



smooth, glaucous beneath, revolute on the margin, corymbs terminal 



and axillary, bracteate ; peduncles and calyx very smooth. 

 HAB. Sphagnous swamps and mountain bogs. July. Shrub 18 in. 



high ; Jl. small, rose-col, 

 b. rosmarinifolia : leaves linear, conspicuously revolute, nearly green 



beneath. 

 HAB. Sphagnous swamps. Shrub low ; leaves 2 lin. broad ; umbel. 



term. 



198. RHODODENDRON. Mountain-laurel. 



* Flowers pentandrous. AZALEA. 



R. nudijlorum : flowers somewhat naked ; leaves lanceolate-oblong, 

 nearly smooth, and green on both sides ; the midrib bristly beneath ; 

 margin ciliate ; flowers not viscous ; tube longer than the divisions ; 

 teeth of the calyx short, somewhat rounded ; stamens much ex- 

 serted. 



HAB. Woods and copses. May. Shrub 2 6 feet high; Jlowers in 

 terminal clusters, red. 



R. viscosum : flowers leafy ; branches hispid, leaves oblong-obovate, 

 acute, smooth and green on both sides, ciliate on the margin ; mid- 

 rib bristly ; flowers viscous ; tube as long again as the segments ; 

 teeth of the calyx short, rounded ; stamens scarcely longer than the 

 corolla. 



HAB. Wet woods. June. Shrub 4 8 feet high; Jlower white, 

 viscous, sweet-scented. 



R. nitidum : flowers leafy ; branches somewhat smooth ; leaves oblong- 

 lanceolate, submucronate, coriaceous, smooth on both sides, shining 

 above ; nerve bristly beneath ; margin revolute-ciliate ; flowers vis- 

 cous ; tube a little longer than the segments ; calyx very short ; fil- 

 aments exserted. 



HAB. Mountain swamps. Leaves dark green, small ; Jlower red- 

 dish white. 



* * flowers cam.panula.te ; stamens 5 10. 



R. maximum : arborescent ; leaves oblong, acute, paler beneath ; um- 

 bels terminal ; segments of the calyx oval, obtuse ; corolla campan- 

 ulate. 



HAB. Cedar swamps and mountain bogs. June July. Shrub 10 

 15 feet high ; leaves semperv. ; Jlower large, rose-colored. 



199. RHODORA. 



R. canadensis. 



HAB. Mountain bogs. May. Shrub 2 feet high ; leaves oval 

 Jlowers in terminal umb., purplish ; stamen not exsert. 



