Ohdee 73.— ERICACE^. 489 



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

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

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

 Flowers white, 3" long. Capsule pyramidal, 6-sided. June, July, f 



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

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

 urceolate or cainpanulate, 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. FIs. in terminal clusters. 



§ PiiYLt.oDOCE, Saliab. Leaves evergreen, heath-like. Flowers S-parted . , No. 1 



§ Menziesa proper. Leaves deciduous. Flowers 4-parti:d No. 2 



1 M. tasifolia Eobbina. Mountain Heath. St. prostrate at base ; Ivs. linear, 

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

 fis. campanulate, decandrous ; cal. acute. — Shores of the " 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 1" inlength. Pis. drooping, purple, at the top 

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



2 M. ferruginea Smith. (3. 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, Ta. (Pursh). Shrub 4f high. 

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

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



14. LOISELEU^RIA, Dcsv. Alpine Azalea. (To Loiseleur Belong- 

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

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

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

 stylo 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-flowered. Cor. rose 

 color, (Azalea, L.) 



L. prOcrimbens Desv. Summit of the "Whits 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. Pla. glabrous, on very short, purple pedicels, in the 

 midst of the lvs. Jn., Jl. 



15. AZA^LEA, L. Swamp Pink. (Gr. d^aXeog, 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, exsefted, 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 



§ Calyx lobes all oblong and of conspicuous length Nos. 8, 4 



1 A. visoosa 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 segntents; stam. exserted ; style much longer. — Moist woods. 

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

 long, often gkmxms. Fls. fragrant, white or rose color, with full grown lvs. Cal. 

 very small. Tube about 1' long, downy and clammy, slen5er. May — Jl. (A 

 glauca Ph.) 



/3. NiTiDA. Lvs. shining above, smooth both sides, green, oblanceolate. — A 

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



