416 ORDER LXXII. ERICACEAE. 



green. Corolla ovate. Fruit bluish-black, large. — Pale red. ^ 

 March — April. In dry soils. 1 — 2 feet. 



15. V. myutiloi'dks, (Mich.) A large shrub, with long, slender, nu- 

 merous branches. Leaves small, sessile, lanceolate, crenulate, glabrous, 

 shining. Flovjers usually solitary, axillary. Fruit black. — White. ^ . 

 March — ApriL On the banks of rivers. Middle and Southern Geo. 

 6—8 feet. 



Genus II— OXYCOC'CUS. L. 8—1. 

 (From oxus, sour, and kokkus, berry.) 



Calyx 4-cleft. Corolla with 4 linear segments. Stamens 

 8 ; filaments connivent. Anthers tubular, 2-parted. Fruit 

 many-seeded. Cranberry. 



1. O. ertthrocar'pus, (Pers.) A small shrub, with erect, flexuous 

 branches. Leaves oval, membranaceous, acuminate, serrulate, and cili- 

 ate, hairy along the veins. Flowers axillary. Calyx minute, 4-cleft ; 

 segments acute. Corolla long, revolute. Fruit red, transparent. — 

 Red. T 2 . June. Mountains. 2 — 3 feet. 



Order LXXII.— ERICA'CE^E. {Heath Tribe.) 



Calyx 4 — 5-cleft, nearly equal, persistent. Corolla 4 — 5- 

 cleft, regular or irregular. Stamens definite. Anthers 2 -celled, 

 dehiscing by pores. Ovary many-celled ; ovules numerous, at- 

 tached to a central placentae. Style 1. Fruit capsular or 

 baccate, many-seeded. Leaves verticillate or opposite, exstipu- 

 late, often evergreen. 



ANALYSIS. 



1. Stamens 5 2 



Stamens more than 5 4 



2. Shrubs 3 



Herbaceous plants Galax, 17 



8. Style long Azalea, 13 



Style short Cyrilla, 1 



4 Stamens 8 5 



Stamens more than 8 6 



5. Flowers white Elliottii, 3 



Flowers not white Menziesia, 6 



«. Stamens 10 7 



Stamens 14 Bqjaria, 12 



7. Shrubs or small trees 8 



Herbaceous plants, or small, scarcely shrubby plants : 11 



8. Capsule 8-cel led 9 



Capsule 5-celled 10 



9. Leaves perennial Mylocarium, 2 



Leaves not perennial Clethra, 5 



10. Corolla ovate or cylindrical Andromeda, 7 



Corolla salver-form, with a regular border Kalmia, 8 



Corolla funnel-form, with an irregular border Rhododendron, 9 



11. Parasitic plants 12 



Not parasitic plants 13 



12. Anthers 1-cclled Schiceinilzia, 18 



Anthers 2-celled Monotropa, 16 



