258 ERICACEAE. (HEATH FAMILY.) 
15. Leiophyllum. Stamens 10, exserted: anthers opening length¬ 
wise. Petals 5. Pod 2-3-celled. 
16. Ledum. Stamens 5-10: anthers opening by pores. Petals 5. 
Pod 5-celled. 
Suborder III. PYROLENE. The Pyrola Family. 
Calyx free from the ovary. Petals distinct, or very nearly so. 
Seeds with a very loose and translucent cellular covering much larger 
than the nucleus. — Nearly herbaceous; with evergreen foliage. 
17. Pyrola. Flowers in a raceme. Petals converging or hardly 
spreading. Filaments awl-shaped : anthers scarcely 2-horn¬ 
ed. Style long, mostly declined. Valves of the pod woolly 
on the edges. 
18. Moneses. Flower single. Petals widely spreading. Filaments 
not dilated in the middle : anthers conspicuously 2-horned. 
Style straight, exserted : stigmas 5, radiate. Valves of the 
pod smooth on the edges. 
19. Chimaphila. Flowers corymbed or umbelled. Petals widely 
spreading. Filaments dilated and hairy in the middle. Style 
very short and top-shaped, covered by a broad and orbicular 
5-crenate stigma. Valves of the pod smooth on the edges. 
Suborder IV. MONOTROPEiE. The Indian Pipe Fam. 
Flowers nearly as in Suborders II. or III., but entirely destitute of 
green foliage, and with the aspect of Beech-drops. Seeds as in Sub¬ 
order III. 
20. Pterospora. Corolla urn-shaped, 5-toothed, persistent. Sta¬ 
mens 10: anthers 2-awned on the back, 2-celled. See s 
with a stalked wing at the apex. Flowers racemed. 
21* Hypopitys. Corolla of 4 or 5 distinct petals. Stamens 8 or 1 • 
anthers kidney-shaped, 1-celled. Flowers racemed. 
22. Monotropa. Corolla of 5 petals. Stamens 10: anthers 2-cel e , 
awnless. Flower single. 
Suborder I. VACCINIEjE. The Whortleberry Family. 
1. OAYI^USSlciA, H. B. K. Huckleberry. 
Corolla tubular, ovoid or bell-shaped ; the border 5-cleft. Sta¬ 
mens 10 : anthers awnless; the cells tapering upward into more 
or less of a tube, opening by a chink at the end. Fruit a berry 
like drupe containing 10 seed-like nutlets. — Branching shrubs, 
with much the aspect of Vaccinium, commonly sprinkled with 
resinous dots; the flowers (white tinged with purple or red) 
