HEATH FAMILY. 313 



Fruit small, 2 lines long or less; leaves less than 1 in. (mostly Yz in.) long, strictly 



erect 1. A.nummularia. 



Fruit 3 to 4]/ 2 lines long; leaves exceeding 1 in. (mostly l/ 2 to 2 in.) long. 

 Branchlets commonly bristly; ovary bearded. 



Leaves cordate at base 2. A. andersonii. 



Leaves oblong-lanceolate to ovate 3. A. tomentosa. 



Branchlets glabrous or pubescent; ovary glabrous. 

 Pedicels glabrous. 



Leaves light green, glaucescent; calyx equaling or slightly exceeding diameter of 



corolla 4. A. manzanita. 



Leaves vivid green, never glaucescent; calyx y 2 diameter of corolla 



5. A. stanfordiana. 

 Pedicels glandular-pubescent; leaves glaucous 6. A. glauca. 



1. A. nummularia Gray. Strictly erect, l 1 /* to 2*4 ft. high; branchlets 

 pilose-pubescent, the foliage glabrous and shining; leaves orbicular to elliptic- 

 ovate, entire, veiny on the under surface, thickly clothing the branches, 5 to 11 

 (commonly about 6) lines long, on petioles 1 line long; flowers white, little ex- 

 ceeding 1 line; ovary bearded; fruit oblong, 2 lines long, the nutlets usually 4. 



Mendocino ' ' White Plains ' ' ; Mt. Tamalpais and Santa Cruz Mts. Dis- 

 tribution restricted but locally abundant. 



A. nevadensis Gray. Main stems creeping, the erect branches 3 to 9 in. 

 high; leaves small. — Common in the upper portion of the Sierra Nevada timber 

 belt. 



2. A. andersonii Gray. Four to 6 ft. high; branchlets with copious straight 

 spreading hairs or bristles and with glandular indument, the foliage glabrous 

 and glaucous ; leaves oblong or varying from broadly to narrowly ovate, obtuse, 

 or acute, cuspidate, cordate at base or even auriculate, serrulate below the middle, 

 commonly sessile, or sometimes with a short to 2 or 3 lines long petiole; sec- 

 ondary peduncles of the panicle rather long; bracts lanceolate; fruit viscid- 

 pubescent. 



Summit of the Oakland Hills and in the Santa Cruz Mts. near the Redwood 

 "big trees" at Felton. Variable in its character, some specimens showing 

 entire leaves without the cordate base. Too near the next. 



3. A. tomentosa Dougl. Branching shrub, 4 to 8 ft. high; branchlets 

 usually with a glandular indument and spreading bristly hairs; leaves with a 

 fine close tomentum or glabrous, narrowly or broadly oblong to ovate, from 

 obtuse to subcordate at base, acute or obtuse at apex, entire or rarely spinulose- 

 serrulate, 1 to 2 in. long, on very short petioles; bracts linear-lanceolate, the 

 lower foliaceous; flowers white; filaments pilose-pubescent; ovary hirsute; 

 nutlets separable or more or less united. 



Coast Ranges toward the coast. The most common species after A. manza- 

 nita, and usually distinguishable from it by the conspicuous foliaceous bracts. 



4. A. manzanita Parry. Common Manzanita. Shrub, 3 to 12 ft. high, 

 commonly widely branched from the base with long straggling crooked branches, 

 sometimes becoming almost elephantine in its proportions and up to 18 ft. high; 

 young twigs and peduncles finely puberulent; pedicels glabrous; leaves elliptic 

 and obtuse at base and apex, the larger orbicular, the smaller oblong and often 

 tapering from the middle to the acute base and apex, 1 to 2 in. long, ostensibly 

 glabrous; panicle as broad or broader than high, pendulous on the short 

 abruptly recurved peduncles; flowers commonly white, or tinged with pink; 

 bracts small and dry; calyx closely appressed to the base of the corolla and as 

 broad; corolla broad; stamens with a hairy tuft on back of filaments 

 at expanded portion; ovary glabrous; fruit smooth, dull white in early summer, 

 becoming deep reddish brown in late summer and autumn; nutlets irregularly 



