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

6. Steironema. Corolla 5-parted. Five slender staminodia between the fertile stamens.

7. Lysimachia. Corolla 5–6-parted or 5–6-petalled. Staminodia none. Leaves dotted.

8. Glaux. Corolla none; the calyx petal-like. Flowers axillary.

[+][+] Globose capsule circumscissile, the top falling off as a lid; flowers axillary.

9. Anagallis. Corolla longer than the calyx, 5-parted. Leaves opposite.

10. Centunculus. Corolla shorter than the calyx, 4–5-cleft. Leaves alternate.

Tribe III. SAMOLEÆ. Ovary connate at base with the base of the calyx.

11. Samolus. Corolla bell-shaped, with 5 staminodia in the sinuses. Flowers racemose.

1. HOTTÒNIA, L. Featherfoil. Water Violet.

Calyx 5-parted, the divisions linear. Corolla salver-shaped, with a short tube; limb 5-parted. Stamens 5, included. Capsule many-seeded, 5-valved; the valves cohering at the base and summit. Seeds anatropous.—Aquatic perennials, with pectinate immersed leaves, and the erect hollow flower-stems almost leafless. Flowers white or whitish, whorled at the joints, forming an interrupted raceme. (Named for Prof. Hotton, a botanist of Leyden.)