being on dry rocks. The specimen figured is a very small 
one; those preserved in the Herbarium have radical leaves 
an inch broad on capillary petioles three to five inches long, 
and heads of flowers three inches in diameter, and there are 
often thirty to forty flowers in a head. 
Descr. <A perfectly glabrous herb. oot-stock short, 
woody, branched. Stem, many from the root, slender, de- 
cumbent, then ascending, three to five inches long. Leaves, 
radical on filiform petioles three to six inches long; blade 
orbicular or cordate, one to one and a half inches in 
diameter, deeply coarsely acutely toothed; cauline two to 
five inches long, lanceolate elliptic or ovate, narrowed into 
a long or short petiole, coarsely toothed like the radical 
leaves, the teeth sometimes a quarter of an inch long. 
Flowers ten to thirty, forming an umbelliform terminal head, 
involucrate by sessile or petioled broad or narrow leaves ; 
pedicels a quarter of an inch long. Calyz-tube small, cylin- 
dric ; teeth filiform, one-eighth of an inch long. Corolla 
three-quarters to one inch long, curved; inflated portion 
pale lilac with five slits; tubular portion darker purple, 
very slender, closely embracing the style; mouth entire or 
five-toothed. Stamens with slender glabrous filaments, 
rather shorter than very slender subulate anthers. Ovary 
two-celled ; style very long, the exserted portion equalling 
the corolla-tube in length, pubescent; stigmas two, long or 
short, slender, papillose.—J. D. H. 
Fig. 1, Flower ; 2, vertical section of ovary and calyx, with portion of base of 
corolla, stamens, and style; 3, stamen ; 4, apex of style and stigmas:—qall enlarged. 
