I have given may be sufficient to satisfy many of its being a 
distinct species, though, I confess, scarcely sufficient to 
take away my doubts. I have not, however, seen modified 
forms run riot among North American as among ,South 
American species, and therefore my scepticism is less than 
if the Genus had been met with south of the equator. 
The condition of the Experimental Garden shows that 
Mr. James M‘Nagz, as a cultivator, has received the law at 
the feet of Gamaliel; and the gorgeous display of Buenos 
Ayres Versenas which his houses at present contain, proves 
by their infinity of form and shade, and minuteness of gra- 
dation, how few are species compared with diversity in these 
particulars. 
Descr. Root annual. Stem erect, branches divaricated, 
ascending, slightly pubescent when young. Leaves gla- 
brous, distantly serrated, paler below, darker above, lower 
ones three-lobed and petiolate, the upper ovate, subsessile. 
Bractee opposite, lanceolate, linear. Flowers large and 
handsome, very much resembling those of C. bicolor, to 
which it is certainly nearly allied,—the lower opposite and 
solitary, the upper in crowded whorls. Calyx, like the com- 
mon peduncle, glanduloso-pubescent on the outside, coarse- 
ly hairy within, ventricose at its base, its rather short, blunt 
segments spreading. Corolla (seven-eighths of an inch 
long, above an inch across at its longest diameter) with a 
few long hairs scattered over the upper surface, slightly 
glanduloso-pubescent on the lower, the inside of the tube 
having long coarse hairs, the lobes of the upper lip and the 
lateral lobes of the lower lip rounded and crenate in the 
apex, the central lobes straight and subacute, the promin- 
ent ridge projecting into the throat from the upper lip, 
subentire. The colour of the flower is deep lilac over the 
whole of the lateral lobes except at the throat, at the tip of 
the middle lobe and at the tip and base of the upper lip; 
every where else the flower is white, but, in front of the 
upper lip, the white portion is sprinkled with lilac spots. 
Fertile stamens about as long as the middle lobe of the 
lower lip ; filaments hairy, along their upper side ; anthers 
orbiculate, kidney-shaped, orange, bursting along the edge ; 
abortive stamen subulate, green, without appearance of 
anther. Pistil glabrous; stigma minute ; style much de- 
clined. Germen green, ovate. Graham. 
ee 
Fig. 1. Lower portion of the Stem, showing the divided Leaves ; nat. size. 
2. View of the underside of a Flower, showing the curious projecting ridge 
ofjthe lower Lip :—magnified. 
