306 CLASS XIX. ORDER I. 



Stem three or four feet high, round, smooth, striated. Leaves 

 sessile, lanceolate, sagittate at base, entire, the lower ones a 

 little eroded, pale underneath, the middle rib smooth. Panicle 

 more compact than in L. elongata. Calyx cylindric-urceolate, 

 the scales tipt with brown. Corolla yellow. 



The uniformly entire leaves of this plant seem to distin- 

 guish it from L. elongata, from which it may nevertheless be 

 possibly descended. — Road sides. — July. — Biennial. 



* Lactuca sanguinea. Wood Lettuce. 



L.foUis a777ple.vicaidibi/s, 7'U)i.ciiiatis, siibtus glaucis, 

 cai'ina Jilamentosa ; Jlo7'lbus pan.iculatis. 



Leaves clasping, riincinatej glaucous underneath, 

 with the midrib filamentous ; flowers panicled. 



Stem erect, smooth, two or three feet high, mostly of a dark 

 reddish purple color. Leaves all clasping, runcinate, the lobes 

 sonxewhat toothed, glaucous underneath, smooth, with the mid- 

 rib filamentous or hairy. Flowers panicled with short, acumi- 

 nate bractes. Calyx dark purple, cylindrical, tapering upwards, 

 imbricated, the inner scales scarious upon the margin; ligules 

 of the corolla crimson ; down stipitate ; seeds oblong oval, black- 

 ish, with a middle rib and dilated margin. — In dry woods. — July, 

 August. — Biennial ? 



Lactescent like the other species. The filaments on the back 

 of the leaf are sometimes wanting, but generally present. 



327. HIERACIUM. 

 Hieracium venosum. L. Veiiiy leaved ITawhoeed. 



Scape naked, branching ; calyx smooth ; leaves 

 obovate, somewhat acute, entire, ciliate, their veins 

 colored. W'dld. 



A singular and beautiful plant, found upon dry hills and pas- 

 tures. Leaves radical, spreading on the ground, narrow-obovate, 

 elegantly variegated with dark red veins and dots, downy under- 

 neath, somewhat ciliate, tapering into a short, hairy petiole. 

 Scape erect, slender, one or two feet high, of a dark brown color, 

 smooth, commonly naked, but sometimes furnished with a small 



