SYNGENESIA. SUPERFLUA. 161 
Yo add to the error of Michaux, Mr. Pursh says that the 
leaves are very entire. In any other species, less singular, 
the identity would have been impossible. 8S. humilis ap> 
pears to be a variety of this species. 
33. * pulverulenta. Stem tall, perfectly simple, -and in 
common with the leaves and peduncles pulverulently pu- 
bescent; leaves sessile, impunctate, lower ones elliptic, 
serrate, the upper much smaller, obovate and entire, mar- 
_ gin scabrous; raceme erect, solitary, compound, spiciforin; 
scales of the calix thickish, partly acute; rays ted, 
about 10. Has. In Georgia and Florida—Dr. Baldwyn. 
—A species which might almost be confounded with the 
preceding, though quite distinct. Stem 3 or 4 feet high, 
attenuated, sometimes reddish. The lower leaves are 
acute, and somewhat resemble those of Spirea sulicifolia. 
34. erecta? Herb. Banks, mss. Stem simple, 1 or 2 
feet bigh, partly villous in common with the peduncles 
and under side of the leaves; leaves all nearly equal, en- 
tire, elliptic-lanceolate, subpetiolate, acute, and strongly 
- ~ veined; racemes erect, axillar and terminal, 3 or 4 inches 
long, peduncles filiform, pubescent, naked; scales of the 
_ *-ealix acute. Har. In open swamps near Wilmington, 
North Carolina. It may possibly be distinct from S. erec- 
~~ ta, as nothing certain can be derived from such vague 
descriptions. This species is remaikably low, and singu- 
jar for the equality of the leaves, which are 2 or 3 inches 
“long, s¢arcely an inch wide, and subpetiolate. 7 
33. livida. 36. hirta 37. tithospermifolia. 38. hispida. 
39. cesia. Stem glaucows. 40. fezxicaulis. 41. macro- 
phylla. Scarcely distinct from the following. 42. glome- 
rata. Lower leaves broad oval, and acuminate, serrate. 
Nearly allied to Aster. 
43. *squarrosa. Robust; stem thick and 
above; leaves smooth, lower ones very broad, spathulate- 
oval, serrate, acute, margin scabrous, the upper Sessile, 
lanceolate-elliptic, entire; racemes glomerate, rigid and 
pubescent: calix squarrose! many-fio rays elongat- 
ed, 10 or 12. HAz. On the rocky banks of the Rariton, 
near New Brunswick, (New Jersey,) &c. According to 
Muhlenberg’s Catalogue, it exists also in Pennsylvania 
and Georgia. Allied to S, stricta—Stem thick, 2 to 3 
feet high, always simple; lower leaves dilated, upper. © 
much smaller, very acute, subacuminate, sometim 
slightly scabrous on the upper side along the mid-rib. — 
large as those of S. rigida: racemes 
