im calcareous soil on the prairies of the Red River: and 
I have one of his own original specimens now before me. 
Descr. Root perennial. Stem two feet and more in 
height, erect, stout, roundish, or very obtusely angular, 
slightly downy, as is the whole plant. Leaves opposite, 
the upper ones oblong, or even oblongo-cordate, and semi- 
amplexicaul, the middle ones oblong, narrower at the base 
but sessile; the root-leaves oval-spathulate, petiolate, all 
of them somewhat glossy, denticulate at the margin. Pa- 
nicle terminal, leafy. Peduncles opposite from the axils 
of these leaves, bearing three to five large, downy flowers, 
the short pedicels bracteated. Calyx cut into five deep, 
erect, oblongo-lanceolate segments. Corolla with the tube 
considerably inflated, pale, almost white tinged with pur- 
ple, the limb of five spreading segments, within white, 
slightly suffused with yellow and streaked with red. Fila- 
ments (fertile) four, included, two didynamous, curved : the © 
anthers somewhat reniform. Fifth filament: elongated, 
slightly clavate, furnished with long hairs internally at the 
apex. Capsule conical-ovate, acuminate, splitting open 
into two valves, whose margins are curved inwards. Se 
chaffy, attached to a central receptacle. 
_Fig. 1. Flower, from which the Corolla is cut away. 2, Capsule, nat, 
size. 3%. Capsule. 4. Capsule burst open, magnified. 
