ERICACEAE. (HEATH FAMILY.) 257 



stamens and style very much exserted. Mountains of Penn. to Virginia, and 

 southward. June. Shrub 3 -10 high, with thickish leaves, and very fra- 

 grant rose-colored blossoms larger than in No. 3. 



2. A. viscosa, L. (CLAMMY AZALEA. WHITE SWAMP-HONE YSUC- 

 KLB.) Branchlcts bristly, as well as the margins and midrib of the oblong-obo- 

 vate otherwise smooth leaves ; calyx-lobes minute ; corolla clammy, the tube, much 

 longer tfian the lobes ; stamens moderately, the style conspicuously, exserted. 

 Var. GLAtiCA has the leaves paler and often white-glaucous underneath or both 

 sides, sometimes rough-hairy. Var. N^TIDA is dwarf, with oblanceolate leaves 

 green both sides. Swamps, Maine to E. Kentucky, mostly near the coast. 

 June, July. Shrub 4 - 10 high, very variable, with clammy fragrant flowers, 

 white or tinged with rose-color. 



* * Flowers appearing before or with the leaves. 



3. A. liudiflora, L. (PURPLE AZALEA. PINXTER-FLOWER.) Branch- 

 lets rather hairy ; leaves obovate or oblong, downy underneath ; calyx very short ; 

 tube of the corolla scarcely longer than the ample lobes, slightly glandular ; stamens 

 and style much exserted. Swamps, Massachusetts and New York to Virginia, 

 and southward. April, May. Shrub 2 - 6 high, with very showy flowers 

 varying from flesh-color to pink and purple. There are numberless varieties, 

 some of them exhibiting 10 or more stamens. 



4. A. calciululucea, Michx. (FLAME-COLORED AZALEA.) Branch- 

 lets and obovate or oblong leaves hairy; calyx-lobes oblong, rather conspicuous; 

 tube of the corolla shorter than the lobes, hairy ; stamens and style much exserted. 

 Woods, mountains of Penn. to Virginia, Kentucky, and southward. May. 

 Shrub 3 -10 high, covered just when the leaves appear with a profusion of 

 large orange blossoms, usually turning to flame-color, not fragrant. 



17. RHODODENDRON, L. EOSE-BAY. 



Calyx 5-parted, minute in our species. Corolla bell-shaped or partly funnel- 

 form, sometimes slightly irregular, 5-lobed. Stamens 10 (rarely fewer), com- 

 monly declined : anthers, pods, &c. as in Azalea. Shrubs or low trees, with 

 evergreen entire alternate leaves, and large showy flowers in compact terminal 

 corymbs or clusters from large scaly-bracted buds. ('PoSoSei/Spov, rose-tree; the 

 ancient name. ) 



1. R. maximum, L. (GREAT LAUREL.) Leaves elliptical-oblong or 

 lance-oblong, acute, narrowed towards the base, very smooth, with somewhat revo- 

 lute margins ; corolla bell-shaped. Damp deep woods, sparingly in New Eng- 

 land, New York, and Ohio, but very common along shaded water-courses in the 

 mountains of Penn. and southward. July. Shrub or tree 6 - 20 high. Leaves 

 4' - 10' long, very thick. Corolla 1' broad, pale rose-color or nearly white, green- 

 ish in the throat on the upper side, and spotted with yellow or reddish. 



2. R. CatawbieilSC, Michx. Leaves oval or oblong, rounded at both ends, 

 smooth, pale beneath (3' -5' long); corolla broadly bell-shaped, lilac-purple; 

 pedicels rusty-downy. High summits of the Alleghanies, Virginia and south- 

 ward. June. Shrub 3 - 6 high. 



3. R. Lapp 6iii dim, Wahl. (LAPLAND HOSE-BAY.) Dwarf, pros- 



22* 



