632 EEICACEAE (HEATH FAMILY^ 



§2. EURHODODilNDRON DC. Leaves coriaceous and persistent ; stamens 

 (^commonly 10) and style rarely exserted, somewhat declined, or sometimes 

 equally spreading. 



7. R. mAximum L. (Geeat Laurkl.) Shrub or tree, 2-10 m. high ; leaves 

 0.8-2 dm. long, very thick, elliptical-oblong, or lance-oblong, acute, narrowed 

 toward the base, very smooth, with somewhat revolute margins ; pedicels viscid ; 

 corolla bell-shaped, 3.5-5 cm. broad, pale rose-color or nearly vphite, greenish in 

 the throat on the upper side, and spotted with yellow or reddish. — Damp deep 

 woods, rare from N. S., Me., and Que. to Ont. and O., but very common through 

 the AUeghenies from N. Y. to Ga. June, July. 



8. R. catawbifinse Michx. (Mountain Rose Bay.) Leaves oval or oblong, 

 rounded at both ends, smooth, pale beneath, 0.5-1.5 cm. long; corolla broadly 

 bell-shaped, lilac-purple ; pedicels rusty-downy. — High AUeghenies, Va. to Ga. 

 June. 



9. R. Iapp6nicum (L.) Wahlenb. (Lapland Rose Bat.) iJwar/, prostrate 

 in broad tufts; leaves 0..5-1.5 cm. long, elliptical, obtuse, dotted (like the 

 branches) with rusty scales ; umbels few-flowered ; corolla open bell-shaped, 

 dotted, violet-purple; stamens 5-10. — Alpine summits, N. Y., N. H., and Me. 

 to the Arctic regions. June, July. (Arctic Eurasia.) 



10. MENZI^SIA 8m. 



Calyx small and flattish, 4-toothed or 4-lobed. Corolla cylindraceous-um- 

 shaped, soon bell-shaped. Stamens included ; anther-cells opening by an oblique 

 pore. Capsule ovoid, woody, 4-oelled, 4-valved, many-seeded. Seeds narrow, 

 with a loose coat. — Low shrubs, the straggling branches and the alternate 

 leaves usually hairy and cUiate with rusty rather chaff-like bristles. Flowers 

 small, developed with the leaves, in terminal clustera, greenish-white and 

 purplish, nodding. (Named for Archibald Menzies, who in Vancouver's voyage 

 brought the original species from the Northwest Coast.) 



1. M. glabella Gray. Strigose-chaffy scales mostly wanting ; leaves ohoxate, 

 barely mucronate-tipped, glabrous or nearly so ; filaments ciliate below ; capsiile 

 glabrous or nearly so ; seeds long-caudate at each end. — Minnesota Point, L. 

 Superior, and northviestw. June, July. 



2. M. pilbsa (Michx.) Pers. More or less chaffy ; leaves obovate-oblong, 

 prominently glandular-mucronate, strigose-hirsute especially above ; filaments 

 glabrojis ; capsule beset with short gland-tipped bristles; seeds merely apiculate. 

 (M. globularis Salisb.) — In the AUeghenies from Pa. to Ga. May-July. 



11. LEIOPHYLLUM Pers. Sand Myrtle 



Calyx 5-parted. Corolla of obovate-oblong petals, spreading. Style filiform,. 

 Capsule 2-3-celled, splitting from the apex downward, many-seeded. — A low 

 much branched evergreen, with the aspect, foliage, etc., of Ledum, but the 

 crowded leaves sometimes opposite, scarcely petioled. Flowers small, white, in 

 terminal umbel-clusters. (Name formed of Xeios, smooth, and ^liWoi', leaf.) 

 Dkndrium Desv. 



1. L. buxifblium. (Berg.) EU. Shrub, 1-9 dm. high ; leaves oval or oblong, 

 smooth and shining, 8-13 mm. long. — Sandy pine barrens, N. J. to Fla. May, 

 June. 



12. LOISELEtjRIA Desv. Alpine Azalea 



Calyx 5-parted, nearly as long as the bell-shaped regular corolla. Stamens 

 not declined. Style short. Capsule ovoid, 2-3-celled, many-seeded, 2-3-valved ; 

 valves 2-cleft from the apex ; placentae borne on the middle of the columella. — 

 A small depressed shrubby evergreen, much branched and tufted, smooth, with 

 coriaceous opposite elliptical leaves, on short petioles, with revolute margins. 

 Flowers small, white or rose-color, 2-5 in a cluster. (Named for J. L. A. 

 Loi^eleui -Delongchamps, a French botanist.) Chamaecistus Oeder. 



