73 ERICA! K/F,. 



Suborder IV. MONOTR0PE.ffl. 

 Herbs, parasitic upon roots: stems juicy, soaly-bracted, not green. 



Stem striped, red or purple and white: aepala and bracts white 18 



Stem brown-red or purplish-red, clammy, hairy 17 



Stem very thick; entire plant bright red 18 



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 20 



Sepals 2 or i, petals united; filaments and style hairy 21 



1. VACCINT0M, LlnnsBua. 



* Corolla ovoid or glohote, 4-S-toothed: Jilaments smooth; antheri S-aumed on the bach 



included: leaver deciduona. 



Flowers often 2 to 4 together; corolla usually 4-toothed, leaves entire 1, 2 



Flowers solitary, axillary: corolla usually 5- toothed: calyx not deeply lobed. 



Usually less than a foot high; leaves serrate 3, 4 



Usually several (1 to 12) ft. high; branches spreading 6, 6, 7 



* * OoroUa obovoid or campanulate, S-toothed: leaves evergreen 8 



" * * Corolla deeply 4-parted, lobes refiexed, pale rose-color: leaves evergreen 9 



1. V. ulignosum, From a span to 3 or 4 ft. high: leaves thick and veiny. 



2. V. occidentale, Gr. Leaves thinner, less veiny: flowers mostly solitary. 



3. V. csBspitosum, Michx. Branches not angled: berries blue. Very variable. 



4. V. Myrtillus, L. var. microphyllum, Hooker. Branches sharply angled. 



5. V. myrtilloidea. Hooker. Branohlets slightly angled: leaves serrulate, vehiy. 



6. V. ovalifolium, Smith. Smooth, 4 to 12 ft high; branchlets angled. 



7. V. parvifoliura, Smith. Smooth; branohlets green, jointed, sharply angled. 



8. V. ovatum, Pursh. Rigid; leaves ovate or narrower, serrate: flowers clustered. 



9. V. oxycoccus, L. var. intermedinm, Gr. , Trailing, slender: flowers ambellate. 



2. AKBUTUS, Tournefort. 



1. A. Meimesii, Pursh. Loaves 3 to 5 inches long; corolla white, broad-ovoid. 



3. ARCTOSTAPHYLOS, Adanson. 



a. Seeds not united or easily separable. 



Low or creeping, rising only a foot cr two: flowers 1 or 2 lines long. 



Trailing or creeping, green, no bristly hairs, ovary and fruit glabrona. . 1, 2 

 Erect: leaves mostly not an inch long: flowers more numerous 3, 4, 6 



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 9 to 12 



\_ A. Uva-ursi, Spreng. Leaves oblong-apatulate, retuae, tapering to petiole. 



