DIDYNAMIA AN G10SPERMIA. 
99 
distinctifloris, axillari- form, axillary and 
bus terminalibusqne. terminal, with the 
flowers distinct. 
Sp. pi. 1. p. 119. Walt. p. 162. Mich. 2. p. 15. Pursh. 2. p. 41 6. 
Perennial. Stem herbaceous, 2 — 3 feet high, 4 angled, hairy, almost 
hispid, with many slender branches. Leaves opposite, scabrous, covered 
with short rigid hair, abruptly narrowed at base. Bracteas subulate, 
shorter than the calyx. Teeth of the calyx equal. Corolla small, bearded 
in the throat, white, tinged with purple, the border 5-cleft, segments 
oval, nearly equal. Stamens shorter than the tube of the corolla, in 
which they are inserted. Style as long as the stamens. Stigma ? glo- 
bose, seated in the division of the style. Seeds 4, somewhat united at the 
inner angles. 
Grows in damp soils ; very common. 
Flowers July — October, 
6. Stricta. Willd. 
V. caulibus rigide 
erectis; foliis sessili- 
bus,obovatis, serratis, 
subtomentoso-hirsutis- 
simis, albicantibus ; 
spicis strictis,imbrica- 
tis, subfasciculatis. 
Stems rigidly erect; 
leaves sessile, obo- 
vate, serrate, very 
hirsute, hoary ; spikes 
straight, imbricate, 
clustered. 
Pursh, 2. p. 417- 
Y. Rigens. Mich. 2. p. 14. 
Spikes straight long pubescent. Corolla large, pale blue. Michau^, 
With this plant I am unacquainted, it is inserted here on tlie somewhat 
doubtful authority of Pursh. 
Grows in Carolina and the Illinois country. 
Flowers July and August. 
7. Carolwiana. 
V 1 erecta, scabra ; 
foliis oblongo-obova- 
Erect, scabrous ; 
leaves, oblong, obo- 
