138 VACCINIACEAE. 



Family 1. ERICACEAE. Heath Family. 



Shrubs, trees, or iindershiiibs. Leaves often persistent : blades com- 

 monly leathery. Flowers typically perfect. Calyx of 4-7 distinct or 

 partially united sepals. Corolla of 4-7 distinct or partially united petals, 

 sometimes slightly 2-lipped. Androecium of as many or twice as many 

 stamens as there are petals : anthers opening by pores, chinks, or valves. 

 Gj'noecium of 2-7 united carpels. Fruit a capsule. 



1. XOLISMA Eaf. Evergreen or deciduous-leaved shrubs or trees. Leaf- 

 blades entire or nearly so. Flowers in racemes, panicles, or clusters. Calyx- 

 lobes typically 5. Corolla subglobose or urceolate. Filaments unappendaged: 

 anthers awnless. Capsule with thick valve-margins. 



1. X. fruticosa (Michx.) Nash. Evergreen shrub 1-3 m. tall: leaves much 

 reduced toward the ends of the branches; blades oval, obovate, or oblanceolate, 

 reticulate: corolla 3.5-5 mm. long, rounded at the base: capsules 4-4.5 mm. 

 long. — Hammocks and pinelands. 



Family 2. VACCINIACEAE. Huckleberry Family. 



Shrubs or trees. Leaves alternate : blades simple. Flowers perfect, 

 regulai', solitaiy or variously clustered, di'ooping. Calyx of 4 or 5 sepals. 

 Corolla of 4 or 5 usually i^artially united j^etals. Androecium of twice 

 as manj' stamens as there are corolla-lobes. Gynoecium of several united 

 carpels, the ovary wholly or partly inferior. Fruit a berry or a drupe. 



1. VACCINIUM L. Shrubs or small trees. Leaves mostly deciduous: 

 blades entire or slightly toothed. Flowers in racemes or clusters. Sepals 5. 

 Corolla ovoid, cylindraceous or campanulate-oblong. Stamens included: anthers 

 tubular at the apex, unappendaged. Berry globular, Vilue or black. 



1. V. Myrsinites Lam. Plant 3-6 dm. tall, bright-green : leaf-blades obovate to 

 elliptic, 6-12 mm. long, glandular-toothed: sepals obtuse: corolla 4-6 mm. 

 long: berries 4-5 mm. long, black. — Pinelands. — Blueberry. 



Order PRIMULALES. 



Herbs, shrubs, trees, or vines. Leaves alternate or opposite, some- 

 times all basal. Flowers perfect or polygamo-dioecious, variously dis- 

 posed. Calyx of several partially united sepals. Corolla of 2-several dis- 

 tinct or partially united petals. Androecium of as many stamens as there 

 are sepals, or petals, and sometimes accompanied by staminodia. Gynoe- 

 cium of 4-6 united carpels, or rarely more. Fruit capsular or drupaceous, 

 or rarely an achene or utricle. 



Styles distinct: fruit an achene or utricle: ovule 1. Fam. 1. Armeriaceak. 



Styles united : fruit capsular or drupe-like : ovules 

 several. 

 Herbs : ovules or seeds not immersed : fruit capsular. Fam. 2. Piumulaceae. 

 Shrubs or trees : ovules or seeds immersed : fruit 

 drupe-like. 

 Staminodia at the sinuses of the corolla-lobes : 



fruit containinK few or many seeds. Fam. 3. Theophrastaceae. 



Staminodia wanting: fruit containing a single 



seed. Fam. 4. Ardisiaceae. 



