180 Botany of Iilinois and Missouri. 
OCTANDRIA. MONOGYNIA. 
Rhexia virginica Lin. 
Has. Banks of the Merrimack, 16 miles south of Si. 
Louis—rare. June. 
/Enothera biennis Lin. 
Has. Prairies and woods near St. Louis. June. 
Root woody, perennial? Stem 8 to 12 inches high, 
somewhat branching, villose. Leaves oval-oblong, toothed 
zand sinuate, sometimes almost pinnatifid ;—lower ones sub- 
entire, peticled. Flowers small, axillary and terminal. 
Calyx villose ; segments reflexed, one third the length of the 
tube. Petals red, obcordate, as long as the segments of the 
calyx. Capsule an inch or more long when mature, linear, 
angled ; angles very villose. 
Has. On the mounds near St. Louis. M: > 
I am in great doubt whether this is C8. sinuata; but F 
in the vicinity of the abave a dwarf variety, characterized as 
follows: Stem 2-3 inches high, simple: Leaves an inch 
long, oval, entire. Flowers terminal solitary. It differs 
om CE, minima Js h. in the length of the tube of the calyx, 
CEnothera macrocarpa Pur sh. 
Has. On the siliceous hills near the lead mines, Miss. 
ay. 
This splendid species was first discovered by Mr. J. Brad- 
‘y, in the above situation, to which it appears to be pe- 
Gaura biennis Lin, - 
Aan. Wet grounds near St. Louis, July—August. 
