DECAXDR1A MONOGYNIA 263 



braced by numerous imbricated coriaceous bud-scales. Calyx very short and hajrj, 

 Corollao( various shades, from very pale red to bright purple, somewhat viscid ; 

 tube about 3 fourths of an inch long, very hairy ; limb unequally 5-lobed. Slamc?is 

 unequal, nearly twice as long as the corolla ; filaments slender, curved, hairy 

 within the tube, smooth above. Ovary hairy; style filiform, a little longer than 

 the stamens ; stigma capitate. Capsule oblong (half an inch to near an inch long), 

 obtusely 5-angled, sulcate, hirsute, of a firm and almost bony texture. 



Hub. Woodlands, and thickets: common. Ft. April— May. /V.June. 



Obs. There are apparently several varieties of this beautiful flowering shrub. 

 The leaves are subject to large green succulent excrescences, produced by the 

 puncture of inseas. I have concluded to follow Drs. Torrey and Beck, in arrang- 

 ing our former Azaleas with this genus. 



2. R. viscosum, Torr. Leaves obovate, and lance-oblong ; flowers 

 accompanied with leaves, very viscid ; tube of the corolla twice as long 

 as the lobes ; stamens somewhat exserted. Jiecfc, Hot. p. 221. 

 Azalea viscosa. L. and the Authors cited in this work. 



Also? A. viscosa palustris. Marsh* Arhust. p. 16. 



Also? A.glauca. JUuhL Cat al. p. 21. Pursh, Am. 1. p. 154. LindL 



Enctf.p. 144. Eat. Man. p. 49. 



Clammy Rhododendron. Vulgo — Sweet white Honeysuckle. 



Stem 4 to 6 feet high, with numerous short spreading and often crooked branches 

 above ; young branches bristly. Leaves 1 to 2 inches long, and half an inch to an 

 inch wide, mostly obovate, or lance-obovate, short-mucronate, smoothish, bristly 

 on the midrib and petiole, bristly-ciiiatc on the margin; petioles 1 to 2 lines long. 

 Flatters in terminal clusters, appearing after the leaves, sweet-scented ; pedicels 

 about half an inch long, hairy, with filiform and spatulate bracts at base, and nu- 

 merous imbricated bud-scales. Calyx very small and hirsute. Corolla while, 

 glandular-pubescent and very viscid ; tube about an inch lung. Sla?tiens a little 

 longer than the corolla* Style longer than the stamens ; stigma capitate, obscure- 

 ly lobed. 



Hab. Rocky woodlands ; North Valley hill : not common. Fl. June. Fr. 



Obs. A fragrant pretty species, with very clammy white llowcrs,— of which the 

 Azalea glauea, Pursh, appears to bo only a variety. Collected in 1630, by D. 

 T0WN6END, Esq. 



* * Flowers Decandrous : leaves sempervirent. 



3. R. maximum, L. Leaves oblong, abruptly acuminate, thick and 

 coriaceous, glabrous, paler beneath ; racemes terminal, densely thyreoid, 

 or corymbose ; calyx-segments ovate-oblong, obtuse ; corolla subcam- 

 panulate. Jieck> Bot.p. 220. Icon, Mx.f. Sylva. 2. tab. 67. 



Largest Rhododendron. Vulgo — Mountain Laurel. Rose Bay. 



Stem 6 to 8 or 10 feet high, with stout irregular branches. Leaves 3 to 6 inches 

 long, and 1 to 2 inches wide, elliptic-oblong, with a short acumination, sometimes 

 cuneate at base, revolute on the margin, very smooth, green above, paler or fer- 

 ruginous beneath ; petioles thick, half an inch to an inch long. Floicers in dense 

 terminal thyrsoid or corymbose racemes, invested at base with spatulatc-oblong 

 acuminate hairy bracts, or bud-scales ; pedicels an inch to'an inch and half long, 

 glandular-pubescent, viscid, with filiform pubescent bracts at base. Calyx colored, 

 deeply 5-parted ; segments nearly oval, minutely pubescent. Corolla palish rose- 



