Page:Memoir of a tour to northern Mexico.djvu/107

Rh the lowest leaves most elegantly pectinated, and the upper ones palmately divided; a Zinnia, intermediate between Zinnia multiflora and Z. elegans, and which last season grew finely near St. Louis from seeds picked from these Specimens. Many other Compositae have not yet been examined; a Centaurea maybe found to be distinct from C. Americana, so far the only American species of that genus, which is so extensively diffused in the old world.

Leaving aside several Daleae, Lupini, Giliae, a Gentiana, Buchnera, Castilleia, a number of Labiatae, Gramineae, and many others, I will only mention a few more, which I had time to study more closely. First of all, the beautiful and delicate Heuchera sanguuinea probably the most southern, and certainly the most ornamental species of that genus. Next in beauty comes the bright-flowered Pentstemon coccineus;