BIDYNAMIA GYMNOSPERMIA. 85 
longo lanceolatis, su- ceolate, toothed near 
perne denticulatis. the summit. 
Pursh 2. p. 411. 
Prasium incarnatum. Walt. p. 165, 
Stem about 3 feet high; square, glabrous, with the angles cartilaginous. 
Leaves long, lanceolate, very acute, obtusely serrulate or denticulate par- 
ticularly towards the summit, semiamplexicaule, but the lower ones much 
attenuated above the base, all glabrous. Bracteas and Calyx pubescent. 
Corolla ringent, bright purple, pubescent, 4 times as long as the ca- 
lyx, inflated, the border 4 cleft, the upper segment large, rounded, the 
3 inferior oblong, emarginate, the intermediate one streaked and spotted. 
Filaments hairy, shorter than the corolla. Anthers two lobed, adhering 
only at the summit, toothed at base, dark purple with a white fissure. 
Style hairy. Stigmas two, acute. A gland longer than the germs is at- 
tached to their base, slightly angled, tapering, obtuse. Seeds ovate, an 
gled on the inner side. 
Grows in marshy soils, on the margins of rivers. 
Flowers May — June. 
3 . Denticulatum, 
D. spicis elongatis, 
vemotifloris ; bracteis 
parvulis, lato-subtila- 
tis ; calycis dentibus 
subaequalibus; fob is o- 
vatol-ianceolatis, den- 
ticulatis. , 
Sp. pi. 3. p. 150. Pursh 2. p. 41 
Spikes long with 
flowers distant; brac- 
teas small, subulate e * 
teeth of the calyx 
nearly equal; leaves 
ovate lanceolate, 
slightly toothed. 
i. 
Prasium purpureum. Walt. p. 166 . 
Smaller than D. Virginicum. (Pursh.) Stem square, glabrous and 
very minutely pubescent at the summit. Leaves closely sitting, oblong 
ancl generally ovate lanceolate, rather acutely serrulate than denticulate;, 
glabrous. Bracteas about half as long as the calyx, and with the calyx 
minutely pubescent. Corolla moderately large, handsome, variegated on 
the lower lip, longer than the stamens. 
My specimens appear to differ in their leaves at least from the original 
description of the D. denticulatum of Aiton, but they agree minutely with 
the figure in Curtis’s Botanical Magazine, Vol. 6. tab. 214, 
Grows in the mountains. Carolina to Pennsylvania, 
flowers July — September. 
