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62 Vasculares. 
1001. B. cernua, Linn. connata, Willd? Aug.—Sept. y. 1 to 
. 2f.°Q. Nearponds, &c. With 999. O. Ky, 
1002. B. comasa, Hooker. Ky. St. 
1003. Verbesina virginica, Linn. Virginian crownbeard. 
Jul. w. 3io0 6f Louisville, WMurt, Mo. Ter. Jas. 
1004. Polymnia canadensis, Linn. June—Jul, y. 2to 4f. %. 
sr. sw. &c. O. Ky. 
1005. P. uvedalia, Linn. Jul.Sept. y. 3to5f, Y. Mts. Bk. 
Ky. St. West Va. Paddock. 
1006. Silphium ternatum, Linn. Jul.—Aug. y. 3to6f. Y. 
Borders of prairies. dp. O. 
1007. S. atropurpureum, Reiz. Aug.—Sept. y. 4 f. Fields. 
Mar. O. Central O. Rare. 
1008. S. perfoliatum, Linn. Indian cup-plant. Aug.—Sept. 
y. 4to6f. XY. Fields and prairies. O.Ky. I believe 
this was one of the Indian remedies. An account of 
its virtues and the mode and object of its administra- 
tion, may be found in Howard’s work. 
1009. S. terebinthinaceum, Linn. Rosin plant. Silesia, 
y 4to6f. UY. dp. O. It is probable that this, and 
several other species of Silphium will hereafter be 
found to possess valuable medicinal qualities. 
1010. S. gumniferum, E//. Aug. y. 3toS5f. YL. Fox Riv. 
N. W. Ter. Houghton. dp, O, 
1011. S. laciniatum, Linn, Giant prairie dock. Aug,—Sept. 
y 5tolOf, Y&. dp. Darby Plains, O. 
1012. S. pinnatifidum, Ell Prairie dock. Aug.—Sept. y. 4 
to Gf. 4, dp. Darby Plains,O. The root is large, 
and fusiform.—The same is true of several other prai- 
rie species, and perhaps of all. The last four species 
are indiscriminately ealled prairie dock, 5 the inhabi- 
tants of Darby Plains. 
1015. Chrysanthemum Jeucanthemum, Linn. Os-eye daisy. 
June-Aug. w &y. Lio. YX. Fields. &c, Intr. O. 
Asthmatic, &c. Hoop. Dic. 
Sus-orper VII. Amsrosiacex.—Bitter-weed like, 
1014. Ambrosia trifida, Willd. Bitter-weed. Jul.—Sept. ¢& y. 
5 to LOf G. bt. &c. O. Ky. &c. Every where very 
abundant. . . 
1015. A. integrifolia, Willd. It seems to be an accidental, 
rather than a permanent variety of the last. Miami 
country, &c. 
1016. A. elatior, Linn. Roman wormwood. Ragweed. Hog- 
weed. Aug.Sept g&y. Ltoof, ©. Fields. W. 
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