No. 34. ERZGSBOZr. 



163 



oblong, base cuneate decurrent on a long petiole 

 nearly obtuse, margin ciliate entire or seldom serrate : 

 upper leaves sessile or nearly amplexicaule, cuneate, 

 narrow oblong, obtuse, entire, alternate remote: floral 

 leaves small lanceolate. 



Flowers numerous forming a panlcled Corymb, 

 peduncles scattered, slender, bearing one to three 

 flowers. Buds globular. Perianthe or common calix 

 hemispherical, formed by many subulate, adpressed 

 folioles. Flowers radiate, half an inch in diameter, 

 with yellow disk and rays white, bluish or purplish. 

 Rays or radial florets ligular numerous, spreading, 

 crowding, narrow, entire, ■nistilate. Florets of 



entire, pistilate. Florets of /he 

 disk, convex, crowded, the central ones sometimes 

 staminate and abortive. Phoranthe or common re- 

 ceptacle, bearing all the florets, flat, naked, pitted. 

 Germen of the pistillate and complete florets oblong 

 smooth, having a symphogyne calix forming above a 

 pilose pappus which crowns the seeds. Each floret 

 produces a single seed. 



LocAxiTY — Found all over the United States, al- 

 though bearing the name of Philadelphian. Ii 



gro 



in 



Mis- 



souri, and as far South as Louisiana and Georgia. It 

 is a field plants seldom seen in woods and mountains; 

 but covering sometimes whole fields, dry meadows, 

 commons and glades. In old fields it is deemed a 

 pernicious weed, like the other kinds which com- 

 monly accompany it. 



HISTORY— Three species (if not more) of thii 

 genus have similar properties, and will therefore be 

 included in this article, the other two are. 



