52 ESS A YS. 



more feet in length. These runners arise not only from the 

 base of the stem, but from the axils of the upper leaves, and 

 very frequently from the apex of the weak ascending raceme 

 itself, which is thus prolonged into a leafy stolon, hanging- 

 down into the water or mud, where it takes root. Its habit 

 and appearance are so unlike even the summer state of our 

 northern C. rhomboidea, that we could not hesitate to con- 

 sider it a distinct species. The subjoined diagnostic character 

 will doubtless suffice for its discrimination. 1 



On the 7th of July we started for the high mountains 

 farther south, having hired a cumbrous and unsightly, but 

 convenient tilted wagon, with a pair of horses and a driver 

 (who rode one of the horses, according to the usual custom of 

 this region), for the conveyance of our luggage, and which 

 afforded us, at intervals, the luxury of reposing on straw at 

 the bottom, while we were dragged along at the rate of two or 

 three miles an hour. 



Our first day's journey of about twenty-four miles was 

 somewhat tedious, as we found no new plants of any interest. 

 We saw, however, a variety of Lonicera parviflora f with 

 larger leaves and flowers than ordinary, the latter dull pur- 

 plish ; probably the Caprlfolium bracteosum, var. floribus 

 violaccopurpureis of Michaux. The following morning we 

 reached the Watauga River (a tributary of the Holston) ; 

 and leaving our driver to follow up the banks of the stream 

 to the termination of the road at the foot of the Grandfather, 

 we ascended an adjacent mountain, called Hanging-rock, and 

 reached our quarters for the night by a different route. The 

 fine and close view of the rugged Grandfather amply rewarded 



1 Cardamine rotundifolia (Michx.) : glaberrimer decumbens, stolonibus 

 repentibus, radice fibrosa, foliis omnibus conformibus (radicalibus ssepe 

 trisectis, segmentis lateralibus parvis), petiolatis rotundatis plerumque 

 subcordatis integriusculis vel repando sinuatis, siliquis parvis stylo subu- 

 latis, stigraate minuto, seminibus ovalibns. C. rotundifolia, Michx., Fl. 2, 

 p. 30 ; Hook., Bot. Misc., 3, t. 109, (statu vernali : in exemplis Caroli- 

 nianis folia caulinia magis petiolata ;) Darlingt., Fl. Cest., ed. 2. p. 384. 

 C. rotundifolia, Torr. & Gray, Fl. N. Amer., i. p. 88. 



Hab. in rivulis fontibusque opaculis montium Carolina, Virginia?, 

 Kentucky, et in Pennsylvania. 



