ERICACE.fi. 73 



2. A. Nevadensis, Gr. Leaves obovate or narrower, cuspidate-macronate, obtuse at 



base. 



3. A. pumila, Nutt. Tomentulose, pale leaves oblong-obovate obtuse or retuse. 



4. A. Hookeri, Don. Diffuse: leaves green, ovate or oval, cuspidate or acuminate. 



5. A. nummularia, Gr. Very leafy: leaves mostly broadly oval, ends rounded. 



6. A. Anderson!, Gr. Leaves thin, bright green, base sagittate or cordate. 



7. A. tomentosa, Dougl. Branchlets bristly: leaves pale, ovate or narrower. 



8. A. pungens, HBK. Leaves rigid, oblong- lanceolate to round-ovate, entire. 

 Var. platyphylla, Gr. Leaves paler, broader, 1 or 2 inches long; not cuspidate. 



9. A. glauca, Lindl. Larger (8 to 24ft. high): fruit larger: glabrous branchlets. 



10. A. bicolor, Gr. Leaves tomentose beneath: flowers rose-color 3 or 4 lines long. 



11. A. Cleveland!!, Gr. More hairy; leaves narrower, sessile, acuminate. 



12. A. polifolia, HBK. Leaves linear-lanceolate: fruit rough, purple. 



4. GATJLTHERIA, Linnams. 



Flowers in slender but stiff, often branching, bracteate, viscid racemes 1 



Flowers axillary, solitary; filaments glabrous; anthers not awned 2, 3 



1. G. Shallon, Pursh. Spreading, 1 to 4 ft. high; leaves 2 to 4 inches long; serrulate. 



2. G. Myrsinites, Hooker. Spreading in tufts: leaves oval or orbicular ^ inch long. 



3. G. ovatifolia, Gr. Larger: leaves broadly ovate to subcordate. Or. N. 



5. LUCOTHOE, Don. 

 1. Xi. Davis. Torr. Flowers in terminal, often clustered racemes, white, L K. MU. 



6. CASSIOPE, Don. 



1. C. Mertensiana, Don. Leaves keeled, not furrowed on back, l-2 lines long. 



2. 0. tetragona, Don. Leaves thick, deeply furrowed on back, often pubescent, 



3. C. lycopodioides, Don. Stems creeping filiform: leaves barely a line long. 



7. BRYANTHTJS, Steller. 



1. B. Brewer!, Gr. Corolla rose-purple, 5-clef t to the middle, 4-5 lines broad. 



2. B. empetriformis, Gr. Corolla smaller slightly lobed: stamens included. 



8. KALMIA, Linnaeus. 

 1. K. glauca, Ait Leaves glaucous, white beneath: flowers saucer-shaped. Alpine 



0. MENZXESIA, Smith. 



1. M. glabella, Gr. Leaves obovate, usually obtuse: filaments ciliate below. 



2. M. ferruginea, Sm. Leaves oblong or broadly oblanceolate, acute, rusty-hairy. 



