Descr. Stem erect, or nearly so, much branched, the 
branches slender, slightly downy. Leaves ovato-acuminate, 
very obscurely pinnatifid, pubescent, the segments narrow, 
acuminated, often toothed. The numerous, short, lateral 
branches bear two or three handsome flowers. Calyx in 
five deep, lanceolate, rather than ovate, segments, which are 
acuminated and spreading. Corolla purple, the tube much 
swollen, ventricose: upper-lip two-lobed, erect, lower three- 
lobed, standing forward. Barren filament linear, com- 
pressed, yellow-green above, white below, bearing near the 
extremity a few scattered white hairs. 
Fig. 1. Barren Filament: magnified, 
