AND GENERA OF PLANTS. 443 
eo +t Flowers blue, or blutsh-white. 
Galathenium macrophyllum. Sonchus macrophyllus, Wiuv. Mulgedium ma- 
crophyllum, Decanp., Vol. VIL, p. 248. 
Galathenium multiflorum. Mulgedium multiflorum, Decano.. Vol. VIL, p. 
249. Perhaps too nearly allied to the following. 
Galathenium Floridanum. Sonchus Floridanus, Linn. Mulgedium Flori- 
danum, DrcanpD., ib., p. 249. Achenium scarcely striated. 
Galathenium * salicifoum; %, very smooth; stem simple and terete; leaves 
entire, lanceolate or linear-lanceolate, much acuminate, sessile, lower ones re- 
pandly dentate; panicle contracted, racemose, bracteate; achenium elliptic, 
acute, with a single nerve on either side, the stipe nearly the length of the 
fruit. : 
Has. In West Florida. (Mr. Ware.) Bethlehem, Pennsylvania and Salem, North Carolina, 
(Herb. Schweinitz.) The flower appears to have been pale blue or white. Leaves three to four 
inches long, by half an inch wide, entire, or now and then with a slight denticulation, but nothing 
down to the root like dentation or division of any kind, (in the three perfect specimens before me.) 
Uppermost leaves diminishing to bractes with long filiform acuminations. Flowers crowded, on 
short bracteolate pedicels in the Florida specimen, the flowers racemose, and rather distant. 
Galathenium graminifolium. Lactuca graminifolia, Micu., Flor. Bor. Am., 
Vol. IL, p. 85. Stem leaves entire, sagittate at base. Achenium elliptic-lan- 
ceolate, dark brown, with one striature on a side only, the stipe nearly as long 
as the fruit. Panicle divaricate, naked and dichotomous, Radical and lower 
stem leaves more or less runcinate. 
t t Flowers yellow. 
Galathenium elongatum. Lactuca elongata, Munu. in Wiixp., Vol. IIL, - 
1525. Achenium brown, one-nerved in the centre, the rostrum shorter than 
the fruit. 
Galathenium integrifolium. Lactuca integrifolia, Bicrt. Flor. Bost.. Lactuca 
sagittifolia, Euti0Tr, Sketch, Vol. IL. p. 253. Leaves sometimes denticulate; 
achenium black, with a distinct, pale coloured rostrum two-thirds - its length, 
with only a single striature on a side. 
