26 NEOBOT. 



striate slender, leaves bipinnate small, segments 

 linear acuminate ; mnbels small, involucres tri- 

 fid shorter, partial simple, petals seldom radiate 

 seeds echinate. — Not uncommon in fields and 

 woods from New Jersey to Kentucky, pedal, 

 leaves quite flat hardly nerved, stem not grooved 

 terete. 



788. Daucus pusillus Mx. E. &c. annual, 

 stem simple scabrous slender angular, leaves re- 

 mote short bipinnate, segments linear acute, 

 umbel single pauciflore, involucres trifid, par- 

 tial simple, umbelules l-3flore, seeds with wings 

 deeply crested. — A sp. deemed doubtful by 

 many or a var. of D. carotta like the others, but 

 quite distinct ; my specimen collected by Bald- 

 win in Florida has only a few retrorse hairs, 3 

 small leaves, a small umbel; the seeds are large, 

 with white wings deeply cut into pectinate stiff' 

 bristly crests. Perhaps a subg. hophioplis near 

 Tiricta, 



789. Daucus brevifolius Raf, nearly smooth 

 stem terete foliose not grooved, virgate, leaves 

 short remote pinnate, folioles pinnatifid seg- 

 ments oblong acuminate ; involucres trifid, par- 

 tial simple, seeds oblong pubescent hardly echi- 

 nate. — Alleghany Mts. &c, pedal, root branch- 

 ed not odorous leaves 1 or 2 inches long only, 

 umbels small, peduncles sometimes grooved and 

 with a few hairs, seeds fuscate small, petals ra- 

 diate — Var. Jiliformis, stem filiform striate, in- 

 volucres setaceous. 



790. Daucus heterophylus Raf scabrous 

 or subhispid, stem grooved branched foliose, 

 leaves petiolate decomposed variable, the lower 

 3-4pinnate,folioles confluent lanceol. acuminate, 

 upper bipinnate, folioles remote linear cuspidate; 

 involucres tripartite elongate setaceous, base 



