ORDER 73. ERICACEAE. 489 



O. arboreum DC. Ohio, Penn., along the Alleghany Mts. to Flor. A fine tree, 

 40 50f high, trunk 10 15' diam. Bark thick and deeply furrowed. Leaves 4 

 5' by 1$ 2', villous when young, at length smooth, with a distinctly acid taste. 

 Flowers white, 3" long. Capsule pyramidal, 5-sided. June, July, f 



13. MENZIE'SIA, Smith. (To Menzies, the discoverer of the original 

 species (M. ferruginea) in Oregon.) Calyx deeply 4 or 5-cleft ; corolla 

 urceolate or campanulate, 4 or 5-lobed ; stamens 8 to 10, anthers open- 

 ing by terminal pores; capsule 4 to 5-celled, the dissepiments made 

 by the introflexed margins of the valves ; seeds many. Low, shrubby 

 plants, of various habits. Fls. in terminal clusters. 



PHYLT.ODOCE, Salisb. Loaves evergreen, heath-like. Flowers 5-parted No. 1 



MENZIESA proper. Leaves deciduous. Flowers 4-parted ".". ..'.'.'..I.'.'.'.'. No'. 2 



1 M. taxifolia Bobbins. MOUNTAIN HEATH. St. prostrate at base ; Ivs. linear, 

 obtuse, with minute, cartilaginous teeth; ped. terminal, aggregate, 1-flowered; 

 fls. campanulate, decandrous; cal. acute. -Shores of the u lake" on the White Mts. 

 N. H., on Mt. Katahdin, Me. It resembles a heath in its flowers ; and some of 

 the fir tribes in its leaves and stems. St. decumbent at base, 6 to 10' long, with 

 crowded Ivs. above which are 5 to 7" in length. Fls. drooping, purple, at the top 

 of the highest branch, the colored ped. 18'' in length. Fr. erect. Jn. 



2 M. ferruginea Smith, ft. GLOBULARIS Sims. Branches and pedicels with scat- 

 tered hairs ; Ivs. oval-lanceolate, ciliate above and on the veins beneath ; apex 

 tipped with a gland; fls. in terminal panicles, nodding on the slender pedicels. 

 Mts. Penn, to Car. abundant near Winchester, Va. (Pursh). Shrub 4f high. 

 Fls. greenish purple, small, one on each pedicel which is glandular pubescent, 

 18" long. Cor. short- urceolate. Jn. 



14. LOISELEITRIA, Desv. ALPINE AZALEA. (To Loisdeur Ddong- 

 champs, a French botanist.) Calyx 5-partcd, lobes equal ; corolla sub- 

 campanulate, 5-parted, regular; stamens 5, equal, erect, shorter than 

 the corolla, anthers dehiscing laterally from the apex ; ovary roundish ; 

 style straight, included; capsule 2 to 3-celled, 2 to 3-valved, many- 

 eeeded. A little, branching, procumbent shrub, with opposite, petiolate, 

 evergreen, entire Ivs. Pedicels terminal, solitary, 1-flowered. Cor. rose 

 color, (Azalea, L.) 



It. procumbens Desv. Summit of the White Mts., K II. Sts. 3 to 6' long, very 

 branching and leafy. Lvs. elliptical, thick, shining, not more than 3" by 1", 

 margins strongly revolute. Fls. glabrous, on very short, purple pedicels, in the 

 midst of the Ivs. Jn., JL 



15. AZA'LEA, L. SWAMP PINK. (Gr. dZateog, arid ; perhaps the 

 original species grows in dry places.) Calyx small, 5-parted, corolla 

 funnel-form, somewhat irregular, with 5 spreading lobes ; stamens 5, 

 filaments and style long, exserted, declined, anthers opening by pores ; 



* capsule 5-celled, 5-valved, co-seeded. Erect shrubs. Lvs. alternate, 

 deciduous, oblong or obovate, entire. Fls. in umbeled clusters, termi- 

 nal, large and showy, (Rhododendron, Don.) 



Calyx lobes all (or rarely one excepted) very short or minute, Nos. 1, 2 



(Jalyx lobes all oblong and of conspicuous le'ngth Nos. 8, 4 



1 A. viscosa L. Branchlets hispid ; Ivs. obovate, oblong or lanceolate, the edges, 

 midvein and petiole bristly ; fls. appearing with the adult Ivs. very viscid, the tube 

 much longer than the segments / etam. exserted ; style much longer. Moist woods. 

 Can. to Ga. and Ky. Shrub 4 to 7f high, with spreading branches. Lvs. 1 to 2' 

 long, often glaucous. Fls. fragrant, white or rose color, with full grown Ivs. Cal. 

 very small. Tube about 1' long, downy and clammy, slender. May JL (A, 

 glauca Ph.) 



ft. NITIDA. Lvs. shining above, smooth both sides, green, oblanceolate. A 

 low shrub in mountain swamps. Cal. segm. obsolete. 



