14a. Flowers solitary; leaves broadly ovate to nearly circular
(1 dm. high; flower white)
=One-flowered Wintergreen, Moneses uniflora.=

14b. Flowers in clusters; leaves narrow (stems trailing, 1-3 dm.
high; flowers white or pinkish) --15.

15a. Leaves broadest above the middle, green
=Prince's Pine, Chimaphila umbellata.=

15b. Leaves broadest below the middle, spotted with white
=Spotted Wintergreen, Chimaphila maculata.=

16a. Leaves 2-5 cm. long, densely woolly beneath (5-10 dm. high;
flowers white) =Labrador Tea, Ledum groenlandicum.=

16b. Leaves 1-2 cm. long, pale beneath but not wholly (creeping;
flowers pink) (Cranberry) --17.

17a. Leaves acute =Cranberry, Vaccinium oxycoccos.=

17b. Leaves obtuse =Cranberry, Vaccinium macrocarpon.=

18a. Leaves opposite or whorled; corolla saucer-shape (shrubs 3-8
dm. high; flowers purple, summer) --19.

18b. Leaves alternate; corolla bell-shape or salver-form --20.

19a. Branches and twigs cylindrical, not angled
=Sheep Laurel, Kalmia angustifolia.=

19b. Branches and twigs with 2 sharp angles
=Swamp Laurel, Kalmia polifolia.=

20a. Plants prostrate, or with a few ascending branches only
(flowers white or pink) --21.

20b. Plants erect or ascending --23.

21a. Flowers 10-20 mm. long, very fragrant (early spring)
=Trailing Arbutus, Epigaea repens.=

21b. Flowers 4-5 mm. long (late spring) --22.

22a. Leaves spatulate, broadest beyond the middle
=Bearberry, Arctostaphylos uva-ursi.=

22b. Leaves oval, broadest at the middle
=Snowberry, Chiogenes hispidula.=

23a. Leaves linear, white beneath, their margins strongly revolute
(shrub 3-8 dm. high; flowers white, late spring)
=Bog Rosemary, Andromeda glaucophylla.=

23b. Leaves oblong, scurfy beneath with rusty scales (bog shrub 4-10 dm.
high; flowers white, in spring)
=Leatherleaf, Chamaedaphne calyculata.=

23c. Leaves smooth, pubescent, or resinous beneath, but not scurfy nor
white --24.

24a. Lo