Part 1, 1914] ERICACEAE 
Branches decumbent, not rooting; leaf-blades prominently 
mucronate. 
Branches prostrate, more or less rooting; leaf-blades obscurely 
mucronate. 
Erect bushy or more or less arborescent shrubs, sometimes 
depressed in no. 4. 
Flowers 4-5 mm. long; fruit 3-4 mm. broad; low sometimes 
depressed maritime shrub. 
Flowers mostly 6-7 mm. long; fruit 6-8 mm. broad; shrubs, 
mostly 1—4 m. high. 
Leaf-blades seldom more than 15 mm. broad; inflorescence 
of short simple or few-branched racemes. 
Calyx-lobes ovate, pubescent on the margins; bracts 
brown and nearly glabrous above the middle. 
Calyx-lobes rounded, glabrous; bracts tomentose 
throughout. 
Leaf-blades mostly more than 20 mm. broad and 25 mm. 
or more in length; flowers commonly in ample 
panicles. 
Flower-bearing part of the rachis thickened; bracts 
triangular to lanceolate, acute or acuminate, 3 
mim. or more in length. 
Fruit ovoid; nutlets united into a solid, 5-celled, 
ellipsoid stone, prominently ribbed and rugosely 
roughened. 
Fruit depeeseae enone: nutlets irregularly separ- 
able. 
Leaves dull-green with a bloom; inflorescence 
usually tomentose; nutlets carinate on the 
back, prominently rugosely roughened. 
Leaves bright yellowish-green and shining, 
without bloom; inflorescence resinous-gland- 
ular or glandular-pubescent; nutlets incon- 
spicuously ribbed, otherwise nearly smooth. 
Flower-bearing part of the rachis elongate, not 
thickened; bracts scattered, subulate, 2 mm. or 
less in length; leaves bright-green and shining. 
Pedicels and ovaries variously pubescent or sometimes one or the 
other glabrous; leaves often pale grayish-green; branchlets 
often setose-hispid. 
Erect shrubs, 1 m. or more high; leaf-blades mostly more than 
25 mm. long; flowers 6-7 mm. long. 
Bracts firm and persistent, at least the lower often foliaceous; 
calyx-lobes ovate to orbicular, more or less ciliate on 
the margins, otherwise nearly or quite glabrous. 
Pedicels in fruit stout, usually less than 1 cm. long. 
Leaf-blades petioled. 
Leaf-blades glabrous, bright-green and shining; 
branchlets glabrous or sparsely glandular- 
pubescent. 
Leaf-blades more or less tomentose, at least on the 
lower surface; branchlets more or less 
tomentose and often glandular or setose- 
hispid. 
Bark early exfoliating, on the old branches 
and trunks very smooth. 
Bark tardily exfoliating, on the old branches 
and trunks shreddy. 
Leaf-blades sessile or nearly so, and clasping at base. 
Pedicels glandular-villous. 
Branchlets and inflorescence densely glandu- 
lar-villous. 
Branchlets and inflorescence tomentose and 
with a few setose-hispid hairs. 
Pedicels glabrous; leaves pale, more or less 
tomentose. 
Pedicels in fruit very slender, 15-25 mm. long, glandular- 
villous; leaves very pale. 
Herbage glabrous and glaucous. : 
Herbage glandular-pubescent or glandular-villous. 
Bracts membranous and deciduous; calyx-lobes oblong- 
lanceolate, villous; herbage glandular-villous. 
Nutlets separable. . 
Nutlets united ito a solid stone. 
Low spreading shrub forming mats; leaf-blades narrowly obovate 
to spatulate, less than 25 mm. long; flowers 4-5 mm. long. 
Fruit laterally compressed, small, with scant granular pulp; flowers 
4 mm. long; low shrubs; leaf-blades less than 25 mm. long. 
Leaf-blades cartilaginous and revolute on the margins. 
10. 
11. 
12. 
13. 
14. 
15. 
16. 
17. 
18. 
19, 
20. 
21. 
22. 
93 
. nevadensis, 
. eratericola. 
. Hookeri. 
. montana. 
- pungens. 
. Parryana. 
Manzanita. 
. patula. 
. Stanfordiana. 
. insularts. 
tomentosa. 
vestita. 
Andersonit. 
auriculata. 
pechoensis. 
viscida. 
. Mariposa. 
. Pringlet. 
drupacea. 
pumila. 
nummularia. 
