178 CLASS X. ORDER I. 



The great regularity of the clusters of flowers in this species 

 causes them to resemble rows of teeth. Leaves on short petioles, 

 thin, oval serrulate, acute or acuminated, smooth, the veins a 

 little downy beneath. Flowers racemed, on the ends of the 

 branches, all pointing downwards. Pedicels short, smooth. 

 Bractes two, ovate, acuminate. Calyx of five acute segments, 

 variously colored. Corolla white, oblong oval, contracted at the 

 mouth; the segments convex, diverging or revolute. Style just 

 exserted. Filaments converging. Anthers cleft, four awned. 

 Capsule globular, splitting into five incurved valves and support- 

 ed by the persistent bractes and calyx. — Low woods, Roxbury. 

 Not common. — June. 



Andromeda Mariana. Willd. Maryland Andromeda. 

 Leaves oval, stibaciite, entire, smooth, siibcoriace- 

 ous, paler beneath ; flowering branches nearly naked, 

 pedicels fascicnlate ; corollas cylindric-ovate ; anthers 

 awnless. 



A low shrub with rather large flowers. Leaves sometimes 

 lanceolate. Calyx foliaceous, deeply five parted. Corolla white 

 or pale red. Capsule somewhat conoidal. — Near Providence. — 

 Mr. Eddy. — June. 



185. RHODODENDRON. 

 Rhododendron maximum. L- American Rose Bay. 



American Medical Botany, PI. 11. 

 Leaves oblong, glabrous, paler beneath ; umbels 

 dense, terminal ; corollas somewhat bell-shaped, pe- 

 tals rounded. 



A magnificent, flowering shrub, common in the mountainous 

 regions of the middle states, but more rare toward the north. 

 Several varieties of it are met with in different parts of the 

 country. The Rhododendron of the northern states is a large, 

 straggling shrub, very irregular jn its mode of growth. The 

 bark is of a greyish color, cracked and broken. Leaves in tufts 

 at the ends of the branches, evergreen, coriaceous, on round, 

 fleshy petioles, oblong ova], entire, revolute at the edges, palQ 



