Family 5. ERICACEAE 
By Joun KunKEL SmaiL* 
Perennial herbs, or shrubs or trees. Leaves alternate, opposite, or whorled, 
without stipules, often persistent; blades simple, membranous or leathery, flat, 
revolute, or keeled, or grooved on the back, entire or toothed, sessile or petioled. 
Flowers perfect, solitary in the axils, or in axillary or terminal clusters, racemes, 
or panicles. Calyx of 4-7 nearly distinct or partly united sepals. Corolla of 4-7 
distinct or partly united petals, various in shape, regular or 2-lipped, white, 
variously colored, or variegated; tube short or elongate, sometimes with sacs 
which hold the anthers before anthesis; lobes erect, spreading, or recurved. 
Androecium of as many or twice as many hypogynous stamens as there are 
petals or corolla-lobes; filaments distinct or nearly so, sometimes flattened 
and dilated, often appendaged, straight or sigmoid-curved; anthers 2-celled, 
upright, the sacs introrse, opening lengthwise or by chinks or terminal pores, 
sometimes prolonged into apical tubes, often appendaged. Pollen-grains com- 
pound. Gynoecium 2~7-carpellary, the carpels united or distinct. Ovary super- 
ior, 2—7-celled, often prominently lobed, sessile on an annular or a lobed disk; 
style compound, slender, columnar or fusiform; stigma minute, discoid or 
slightly lobed. Ovules usually numerous, anatropous. Fruit a capsule, either 
exposed or included in the accrescent fleshy calyx and thus baccate, or truly 
baccate or drupaceous. Seeds numerous or rarely few. 
Ovary ripening into a capsule, this either exposed or enclosed in the per- 
sistent corolla or accrescent calyx. 
Capsule exposed or enclosed in the accrescent calyx; corolla deciduous 
after anthesis. 
Calyx not accrescent; corolla deciduous; capsule exposed. 
Capsule septicidal. 
Corolla of distinct petals. 
Anther-sacs opening by apical pores. 
Petals 6 or 7, long-clawed; stamens 12 or 14; flowers 
not from scaly buds. 1. BEFARIA. 
Petals 5, clawless; stamens 5 or 10; flowers from 
cone-like scaly buds. 2. LEpuUM. 
Anther-sacs opening lengthwise. 
Anthers globular-didymous. 3. DENDRIUM, 
Anthers oblong, oval, or sagittate. 
Calyx-lobes short and broad; flowers in terminal 
panicles. 4. Eviiorria. 
Calyx-lobes long and narrow; flowers solitary in 
the axils. 5. CLADOTHAMNUS. 
Corolla of partly united petals. 
Anther-sacs opening lengthwise. 6. LOISELEURIA. 
Anther-sacs opening by pores. 
Corolla decidedly 2-lipped, mostly funnelform. 
Corolla with a long tube; limb slightly 2-lipped, the 
lobes nearly equal. 7. AZALEA, 
Corolla split to the base below, the tube very short, 
the limb strongly 2-lipped, the upper lip 3-lobed 
at the apex, the lower lip with 2 long narrow 
lobes. 8. RHopora. 
Corolla not 2-lipped, often campanulate, urceolate, 
rotate, or saucer-shaped. 
* The genus Uva-ursi by Le Roy ABRAMS. 
VoiumE 29, Part 1, 1914] 33 
