The Manual of the Botany of the Northern United States / Including the District East of the Mississippi and North of North Carolina and Tennessee

by Asa Gray

1. Gaylussacia. Ovary 10-celled, with a single ovule in each cell. Fruit a berried drupe with 10 small seed-like nutlets.

2. Vaccinium. Berry 4–5-celled (or imperfectly 8–10-celled by false partitions), many-seeded. Anther-cells tapering upward into a tube.

3. Chiogenes. Berry 4-celled, many-seeded, its summit free. Anther-cells not prolonged into a tube, but each 2-pointed. Slender trailing evergreen.

Suborder II. Ericineæ. (Heath Family proper.) Calyx free from the ovary. Corolla monopetalous, rarely polypetalous, hypogynous.—Shrubs or small trees.

Tribe I. ARBUTEÆ. Fruit indehiscent, a berry or drupe. Corolla deciduous.

4. Arctostaphylos. Corolla urn-shaped. Drupe berry-like, 5–10-seeded.

Tribe II. ANDROMEDEÆ. Fruit a loculicidal capsule (berry-like in n. 6). Corolla deciduous.

[*] Anther cells opening through their whole length, not appendaged.

5. Epigæa. Corolla salver-shaped. Calyx of 5 separate dry and pointed sepals.

[*][*] Anther-cells opening only at the top. Corolla not salver-shaped.