72 . ERICACES. 
Suborder IV. MONOTROPEZ. 
Herbs, parasitic upon roots: stems juicy, scaly-bracted, not green. 
Stem striped, red or purple and white: sepals and bracts white........0-ssesesceesss LE 
Stem brown-red or purplish-red, clammy, hairy.........-.ssscececscesccescescess LT 
Stem very thick; entire plant bright red...... sieisials ersieinielaisiars sdinisaisaichsesee acess cee LO: 
Stem white, tawny or reddish, fleshy; 19 and 20 polypetalous. 
Sepals 2 to 5, bract-like: petals 3 to 6, concave at base: style tubular........ 19 
Sepals and petals 4 or 5 each, lacerate-fringed, flat........... sieGisieeesewsee 20? 
Sepals 2 or 4, petals united; filaments and style hairy...... SeebWeseees coeney 2M 
1. VACCINIUM, Linnzus, 
° Corolla ovoid or globose, 4-5-toothed: filaments smooth; anthers 2-awned on the back 
included: leaver deciduous, 
Flowers often 2 to 4 together; corolla usually 4-toothed, leaves entire........... a. 1, @ 
Flowers solitary, axillary: corolla usually 5-toothed: calyx not deeply lobed. 
Usually less than a foot high; leaves serrate.......... er asbisreesrore soem. 3, 4 
Usually several (1 to 12) ft. high; branches spreading.............. 5, 6, 7 
“* Corolla obovoid or campanulate, &-toothed: leaves evergreen.......++-.-0% pvatasaleeisisaexs 8 
"** Corolla deeply 4-parted, lobes reflexed, pale rose-color: leaves evergreen............ 2 
ulignosum, From a span to 3 or 4 ft. high: leaves thick and veiny. 
occidentale, Gr. Leaves thinner, less veiny: flowers mostly solitary. 
cespitosum, Michx. Branches not angled: berries blue. Very variable. 
Myrtillus, L. var. microphyllum, Hooker. Branches sharply angled. 
myrtilloides, Hooker. Branchlets slightly angled: leaves serrulate, vetny. 
ovalifolium, Smith. Smooth, 4 to 12 ft high; branchlets angled. 
parvifolium, Smith. Smooth; branchlets green, jointed, sharply angled. 
ovatum, Pursh. Rigid; leaves ovate or narrower, serrate: flowers clustered. 
oxycoccus, L. var. intermedium, Gr. Trailing, slender: flowers umbellate. 
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BSN AaP wr 
2, ARBUTUS, Tournefort. 
1. A. Menziesii, Pursh. Leaves 3 to 5 inches long; corolla white, broad-ovold. 
3. ARCTOSTAPHYLOS, Adanson. 
a. -Seeda not united or easily separable. 
Low or creeping, rising only a foot or two: flowers 1 or 2 lines long. 
Trailing or creeping, green, no bristly hairs, ovary and fruit glabrous.. 1, 3 
Erect: leaves mostly not an inch long: flowers more numerous...... 3, 4, 5 
Erect, 3-20 ft. high: flowers 3-4 lines long: fruit 4-5 lines thick........... 6, 7, 8 
b. Seeds united into a solid woody or bony stone................ sesaiioawecse Oto 123 
1. A. Uva-ursi, Spreng. Leaves oblong-spatulate, retuse, tapering to petiole, 
As 
