-..!> 1 11. A. 



4. A. RHOiMBoiDEA Raf. nearly smooth, stem 

 virgate nearly simple ; leaves on long petiols 

 ovate rhomboidal, acute, serrate ; Involucre pe- 

 dicellate, laciniate, shorter than petioles, flow- 

 ers monoical caps, hispid. Pennsylvania to 

 Ohio, Alleghanies &>c. annual, estival, pedal. 



A. caroliniana of Michaux and all our Bo- 

 tanists except Walter and Elliot. Eaton says 

 Darlington was the first to find it North ; but 

 Muhlenberg and I found it in 1802, deemed 

 then the same as the next. 



Figures. Autikon Raf. 24. Lamark tab 780. 



5. A. CAROLINIANA Walter, Elliot. Stem 

 strait hairy, leaves on long petiols, oval lance- 

 olate 3 or 5 nerved, pilose, acuminate, serrate, 

 base subcordate, spikes axillary and extra, mo- 

 noical, involucres sessile laciniate, capsules 

 echinate. Carolina and Florida. Annual, Es- 

 tival. Leaves large 2 or 3 inches, involucre 

 small, spikes elongate 2-4 inches : totally dif- 

 ferent from last, this might be called A. echina- 

 ta. Elliot was doubtful of the Genus. 



6. A. URTICIFOLIA Raf. Stem erect angular 

 grooved smooth; leaves ample ovate acute on 

 long pubescent petiols, base acute, serrate, tri- 

 nerve with a few hairs : flowers axillary mono- 

 ical, 2-3 involucres laciniate or palmate, ciliolate, 

 capsules scrobiculate or dotted, smooth. In 

 West Kentucky and Tennessee, discovered in 

 1818. Sesquipedal, estival, annual. Near the 

 Jast, but smooth, leaves with only a few ad- 

 pressed hairs above, flowers not in spikes, few, 

 and capsules with sunken dots. Seen alive. 



Figure Autkon Raf. 25. 



7. A. DIGYNEIA Raf. fl. Louis. 369. Stem 

 herbaceous ramose tomentose, leaves petiolate, 

 oblong lanceolate, dentate, villose: involucres 



