OF NORTH AMERICA. 27 



marginate of white, partial subulate marginate, 

 seeds echinate. — This is the most common sp. 

 from Canada to Louisiana in fields and woods, 

 nearest to D, carotta, but yet different. Root 

 biennial odorous fulvous slender, stem 1 to 3 

 feet high, leaves 3 to 6 inches long, large umbel 

 lax at first, contracted at last. Some varieties 

 or deviations. 



1. Var. Fumaroides. Lower leaves like 

 Fumaria 4pinnate segments confluent, some in- 

 volucres simple. 



2. Var. Asper, stem very scabrous, leaves 

 shorter 2-3pinnate. 



3. Var. LaxifoliuSy nearly smooth, leaves 

 with remote folioles. 



It W\\\ be sufficient to compare carefully these 

 American sp. with the European to perceive 

 their distinctions. There are at least 6 sp. in 

 Europe blended in i>. carotta ! or the garden 

 kind native of the South, so easily known by 

 large succulent root, stem hirsute deeply groo- 

 ved, petiols carinate, broad decompound leaves, 

 pinnate involucres <Slc — they are D. maritimus, 

 polygamous, exiguus, see Pers. Wild. Lam* 

 4*c besides the 2 next, now before me, 



791. Daucus strigosus R. strigose covered 

 with white bristly hairs, stem grooved, leaves 

 subsessile, pinnate and bipinnate, folioles oblong 

 laciniate or pinnatifid acute, involucres pinnate 

 broad with a thick margin, partial simple lan- 

 ceolate. — A very distinct sp. sent me from Eng- 

 land as a wild carrot, the hairs are thickly set 

 stiff* and ffat, petals radiate. 



792. Daucus agrestis R. stem grooved sca- 

 brous, leaves remote subsessile base winged 

 pinnate or bipinnate, folioles pinnatifid, seg- 

 ments oblong cuspidate ; involucres pinnate or 



