NORTH AMERICAN 23 



radiate. Calix entire, styles divaricate, stig- 

 mas capitate, petals 5 unequal plicate involute. 

 Seeds unequal oblong, with 1 or 3 ribs unequaly 

 echinate cristate. Habit of Daucus. The 

 name was an ancient one for Daucus. 



778. TIRICTA DAUCOIDES Raf. stem virgate 

 terete smooth ; leaves few, lower on long pe- 

 tiols, upper sessile, bipinnate, folioles linear con- 

 fluent cuspidate, margin rough ; 2 or 3 umbels 

 on long peduncles, invol. 5-8phyle, linear entire, 

 umbels multiflore longer. In the Pine barrens 

 of South New Jersey, root annual ? white per- 

 pendicular not odorous as in Daucus, stem bi- 

 pedal simple, leaves slender, flowers small white 

 autumnal. Compare the Leptocaulis echinatus 

 of Nuttal. 



779. BABIRON Raf. involucre none, par- 

 tial oligophyle simple. Flowers similar, none 

 male nor radiate. Calix hardly Stoothed, pe- 

 tals ovate obtuse flat equal. Fruit ovate round- 

 ed smooth, seeds with several rows of small 

 scaly tubercles. Habit of Ammi and Lepto- 

 caulis. How distinct from the last, the name 

 was also an ancient one of Daucus in Egypt, 3 

 sp. at least, some of which are among the Lep- 

 tocaulis of Nuttal in Decandole, but not of same 

 Genus. 



780. BABIRON PUSILLUM Raf. annual quite 

 smooth, stem simple filiform striate, leaves short 

 2-3pinnate, segments linear acute, the upper se- 

 taceous ; umbels trifid terminal filiform, invo- 

 lucre none or 1 subulate, partial 3-4subulate, 

 umbelules 3-5flore, pedicels unequal sent me 

 from Alabama, and by Dr. Torrey from Geor- 

 gia as the Daucus pusillus \ see 788. Stem 4 

 to 6 inches high redish, leaves small finely cut, 



