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ERICACEJE. (HEATH FAMILY.) 
x. Gaylussacia. Ovary 8-10 celled with a single ovule in each 
cell. Fruit a berried drupe with 8-10 small nutlets. 
2. Vaccinium. Berry 4-5-celled (or imperfectly 8-10-celled by 
false partitions), many-seeded. Anther-cells tapering up¬ 
ward into tubes. 
3. Chiogenes. Berry 4-celled, many seeded. Anther-cells not 
prolonged into tubes, but 2-pointed. 
Suborder II. ERICINEjE. The proper Heath Family. 
Calyx free from the ovary. Corolla monopetalous or rarely nearly 
or quite polypetalous. Seed-coat close and thin, rarely loose and cel¬ 
lular. — Shrubs or small trees. 
Tribe 1. ARBUTEA5. — Fruit a berry or drupe. 
4. Arctostaphylos. Corolla urn-shaped. Drupe berry-like, with 
5 seed-like nutlets. 
Tribe 2. ANDROMEDEiE. — Fruit a pod opening loculicidally. 
* Calyx becoming berry-like in fruit, and inclosing the pod. 
5. Gaultheria. Corolla cylindrical-urn-shaped, 5-toothed. An¬ 
thers 4-awned. 
* * Calyx dry and unchanged in fruit. 
6. Epigjea. Corolla salver-form; the border 5-parted. Anthers 
opening lengthwise, awnless. 
7. Andromeda. Corolla bell-shaped, ovoid, or somewhat urn-shap¬ 
ed, 4-5-toothed. Anthers opening by pores or chinks at the 
summit. Pod 5-celled, 5-valved. 
8. Clethra. Corolla of 5 distinct petals. Pod 3-celled, 3-valved. 
Tribe 3. RHODOREiE. — Fruit a pod opening septicidally. 
* Corolla ovoid or urn-shaped, barely 5-toothed. 
9. Phyllodoce. Stamens 10. Pod 5-celled. Leaves Heath-like. 
* * Corolla bell-shaped or funnel-form, 5-lobed or ringent. 
10. Rhodora. Corolla irregular, 2-lipped ; the upper lip 3-lobed, the 
lower 2-parted or of 2 petals. Stamens 10, unequal. 
11. Azalea. Corolla funnel-form, 5-lobed. Stamens 5, and with 
the style declined. Leaves deciduous. 
12. Rhododendron. Corolla mostly bell-shaped. Stamens 10, an 
with the style commonly declined. Leaves evergreen. 
13 Kalmia Corolla between wheel-shaped and bell-shaped, 5-Iob- 
ed, with 5 hollows which hold the anthers. Style straight. 
Leaves evergreen. 
* * * Corolla 5-parted or of 5 separate petals, regular. 
14. Loiseleuria. Stamens 5, shorter than the deeply 5-cleft cor 
la: anthers opening lengthwise. Pod 2-3-ce e 
22* 
