ERICACEAE. 73 



2. A. Nevadensis, Gr. Leaves obovate or narrower, cnapidate-macroimte, obtase at 



base. 



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



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



5. A. nununularia, 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. ptm^ens, H6K. Leaves rigid, obloug-lanceolate to round-ovate, entire. 

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



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



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



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



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



4. GAUIiTHERIA, Linnsus. 



Flowers in slender but stifiF, often branching, braoteate, viscid racemes 1 



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



1. G. Shal^on, Fursh. Spreading, 1 to 4 ft. high; leaves'2 to 4 inches long; serrulate. 



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



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



5. LUCOTHOE, Don. 

 1. li. SavissB. Torr. Flowers in terminal, often clustered racemes, white, S. K. Mta. 



6. CASSIOPE, Don. 



1, C. Mertensiana, Don. Leaves keeled, not furrowed on back, 14-2 lines long. 



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



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



7. BBYAWTHTJS, Steller. 



1. B. Breweri, Gr. Corolla rose-purple, 5-cleft to the middle, 4-5 lines broad. 



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



8. KATiMIA, Linnseus. 

 1. K. glauca. Ait. Leaves glaucous, white beneath: flowers saucer-shaped. A'r'i«, 



9. MENZLESLa., Smith. 



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



2. M. fermginea, Sm. Leaves oblong or broadly oblanceolate, acute, nisty-hury. 



