ERICACEAE. (HEATH FAMILY.) 229 



teeth (| to l inches long) : pedicels solitary in the axils, very short: corolla 

 depressed-campanulate, little exceeding the calyx : apex of anthers obscurely 

 4-poiuted : fruit scarlet, with pine-apple flavor. In the mountains from 

 Colorado and Utah to British America and westward. 



4. BRYANTHUS, Steller, Gmelin. 



Heath-like alpine evergreens ; with much crowded linear-obtuse leaves 

 (^ inch or less long). In ours the flowers are racemose-clustered at the sum- 

 mit of the branches, the pedicels glandular and subtended by foliaceous arid 

 rigid bracts, and the almost smooth leaves have strongly revolute thickened 

 margins. 



1. B. empetriformis, Gray. A span or more high: pedicels some- 

 what umbellate : corolla rose-color, 2 or 3 lines long, campanulate, barely 

 5-lobed ; the lobes much shorter than the tube : stamens included : style 

 either included or exserted. Proc. Am. Acad. vii. 377. Mountains of W. 

 Wyoming, Montana, and northwestward. 



5. KALMIA, L. AMERICAN LAUREL. 



Leaves evergreen and entire : the showy flowers umbellate-clustered, rose- 

 colored, purple or white : limb of the corolla in bud strongly 10-keeled from 

 the pouches upward, the salient keels running to the apex of the lobes and 

 to the sinuses. 



1. K. glauca, Ait. Shrub 1 or 2 feet high, glabrous, mostly glaucous, 

 branchlets 2-edged : leaves all opposite or rarely in threes, almost sessile, ob- 

 long or linear-oblong, or appearing narrower by the usual strong revolution 

 of the edges, glaucous-white beneath : flowers in spring in a simple terminal 

 umbel or corymb, lilac-purple, to inch in diameter. Bogs, Colorado 

 and northward, thence eastward across the continent. The forms extending 

 southward into the Colorado mountains are depauperate alpine forms a span 

 high and with leaves barely i inch long (var. microphylla, Hook.). 



6. LEDUM, L. LABRADOR TEA. 



Low shrubs, with alternate persistent leaves, which are entire and more or 

 less resinous -dotted, slightly fragrant when bruised : flowers white, devel- 

 oped in early summer from terminal or sometimes lateral buds ; pedicels 

 recurved in fruit. 



1. L. glandulosum, Nutt. Shrub 2 to 6 feet high, stout : leaves oblong 

 or oval, or approaching lanceolate (1 or 2 inches long), glabrous both sides, 

 pale or whitish and minutely resinous-atomiferous beneath : inflorescence often 

 compound and crowded : capsules oval, retuse. From California northward 

 and eastward into British America, occurring in the northwestern border of 

 our range. 



7. MONESES, Salisb. 



Cells of the anther oblong, abruptly constricted under the orifice into a 

 conspicuous short-tubular neck. 



