“= 
ye 
SYNGENESIA, SUPERPLUA. 
~ white tomentum, segments trifid, linear, almost filiforn 
‘acuminate. Receptacle villous. [Mar. On the sum- 
ts of the highest gravelly hills of the Missouri; com- 
mencing to appear about Plum creek. Scent and bitter- 
ness similar to that of 4. Adronatum. 
10. biennis. Abundant in the suburbs of St. Louis and 
St. Charles, on the Missouri, but does not continue any 
considerable distance up that river. Has it not been in- 
troduced from Spain? 11. annua? Was. On the island 
of Michilimakinak in Lake Huron. A smaller plant than 
the preceding which it greatly resembles, but is annua). 
12. cannilensis. Stem herbaceous and paniculate, most- 
ly erect; radical leaves sub te, somewhat deci- 
duously tomentose, cauline pseudopinnate, segments sub- 
setaceous, incise, flat, and nearly smooth; flowers partly 
glomerate and sessile; calix subglobose, scales oval, sca- 
riose; flosculinumerous. Has. Abundant on all the san- 
dy shores of the St. Laurence, lakes Erie, Huron, Michi- 
gan and Superior; also on the hills of the Missouri, 
the Mandon towns tothe Mountains? 4. campestris. Pu. 
Fl. Am. p. 522. It possesses considerable affinity to 7. 
campestris, but the flower is much larger, Seathiphericsl 
and sessile, with scariose scales, it is also a much larger - 
plant. Oss. Stem sometimes decumbent at the base, 
commonly erect, 3 or 4 feet high, smooth and mostly 
brown; lower and radical leaves covered with a slender 
cotton-like tomentum, unequally spread; upper leaves 
nearly smooth 
id oI ‘caudate, Stem simple and herbaceous, densely and 
paniculate; eudical and lower cauline leaves 
On the islands of Egg-harbour, N. Jersey, and in the bar- 
ten woods of North Carolina. I bave never seen this plant 
near the Missouri nor in any part of Louisiana, and be- 
lieve Michaux’s habitat to be erroneous. It is very near- 
ly allied to .4. canadensis; V riable in oe in Caro- 
in various paso North Carolina, in the most 
forests. 15. spithamea. Pn. in Labrador. 
