PLATE X. 
Mitchella repens. —Twin Berry. 
Linn. —Tetrandria Monogynia. 
Nat.— Rnbiacete. 
Habitat: dry woods, about the roots of trees. Flowers in June and July. This pretty little plant 
commemorates Dr. John Mitchell, a resident in Virginia, and an early correspondent of Linnaeus. 
PLATE XI. 
Pontederia cor data.- —Pickerel Weed. 
Linn.— Hexandria Monogynia. 
Nat.— Pontederiacea;. 
Grows in shallow water. Violet blue. Ephemeral Flowers. Blossoms in July and September. 
Common. Dedicated to Pontedera, Prof, of Padua, beginning of last century. 
Sagittaria Variabilis. —Common Arroavhead. 
Linn.— Monoecia Polyandria. 
Nat.—A lismace*. 
This, with its Protean varieties, of which almost every pool and stream furnishes a goodly number, 
embraces many nominal species of authors, and may safely be held to include all that are found within 
our limits. 
PLATE XII. 
Actcea Rubra — Alba. —Red and White Baneberry. 
Linn. —Polyandria Monogynia. 
N at .— Ran u ncul ace*. 
1. Actcea Rubra. —Berries red and oval. Flowers in April and May. 
2. Actcea Alba.- —Berries milk white. Habitat: woods. Flowers in May, later than Rubra, and 
generally a larger plant. 
