Order 73.— ERICAOBJE. 4S& 



O. arborenm DO. Ohio, Penn., along the Alleghany Mts. to Flor. A fine tree, 

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

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

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



13. MENZIE'SIA, Smith. (To Mmzies, 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-cellecl, the dissepiments made 

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

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



S PilTLi.ODOCB, Salisb. Leaves evergreen, lieath-like. Flowers 5-parted No. 1 



§ Menziksa proper. Leaves deciduous. Flowers 4-pflrted No. 2 



1 M. tazifolia Robbins. 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 "lake" on the White Mts. 

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

 the fir tribes in its leaves and sterna. 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, p. globularis Sims. Branches and pedicels with scat- 

 tered hairs ; Ivs. oval-lanceolate, oiliate 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. (Pursli). Shrub 4f high. 

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

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



14. LOISELEU^RIA, Desv. Alpine Azalea. (To Loiseleur Delong- 

 champs, a French botanist.) Calyx 5-partod, 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- 

 seeded. — A little, branching, procumbent shrub, with opposite, petiolate, 

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

 color, (Azalea, L.) 



Ii. prooiiBibena Desv. Summit of the White Mts., N. H. 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 lvs. Jn., Jl. 



15. AZA^LEA, L. Swamp Pink. (Gr. dfaAeof, arid ; perhaps the 

 original species grows in dry places.) Calyx small, 6-parted, Corolla 

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

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

 capsule 5-celJed, 5-valved, 06-seeded. — Erect shrubs. Lvs. alternate, 

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

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



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



§ Oaly.K lobes all oblong and of conspicuous length Nos. 3, 4 



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

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

 much longer than the segments; stam. exserted ; style much longer. — Moist woods. 

 Can. to Ga. and Ky. Shrub 4 to "If high, with spreading branches, lvs. 1 to 2' 

 long, often glaucows. Fls. fragrant, white or rose color, with fiill grown lvs. Cal. 

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

 glauca Ph.) 



/3. nIttda. Lvs. shining above, smooth both sides, green, oblanoeolate. — A 

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



