46. COMPOSIT.E. 
161 
of 1 row of equal scales not membranous at the margin, and 
several smaller seales at its base. Pappus pilose. 
(5.) 24. CiNEKARiA. Involucre of 1 row of equal scales only. 
Otherwise like Senecio. 
(6.) 23. Doronicum. Florets of the ray ligulate, fcm.; of 
the disk henn., tubular. Involucre hemispherical of 2 or ‘d 
rows of equal scales. Pa])pus pilose, wanting in the ray. 
(7.) H. Chrysocoma. Heads not radiant. Florets all herm., 
tubular. Receptacle naked, alveolate (alveoles with elevated 
dentate margins in our plant). Involucre imbricated. Pap- 
pus pilose. Fr. compressed, silky. 
(8.) 4. Aster. Heads radiant. Florets of the ray fem., 
' ligulate, in 1 row; of the disk herm., tubular. Receptacle 
naked, alveolate. Involucre imbricated and a few scales on 
the peduncle. Paj)|)us pilose, in many rows. Fr. com- 
pressed. 
(9.) 5. Erigeron. ^ Heads radiant. Florets of the rag fem., 
ligidate, in many rows ; of the disk mostly herm., tubular. 
Receptacle naked, foveolate. Involucre imbricated. Pappus 
pilose, in many rows. Fr. compressed. 
(10.) 7. SoLiDAGO. Pappus pilose, in 1 row. Fr. terete. 
Otherwise like Aster. 
(11.) 9. Inula. Heads radiant. Florets of the ray fem., 
ligulate, rarely sidjtubxdar; of the disk herm., tubulai’. 
Anth. with 2 bristles at the base. Receptacle naked. In- 
volucre imbricated in many rows. Pappus pilose, uniform, 
in 1 row. 
(12.) 10. Pulicaria. Involucre laxly imbricated in few rows. 
Pappus in 2 rows, outer short cuplike membranous toothed, 
inner pilose. Otherwise like Inula. 
(13.) 21. Gnaphalium. Qwicr florets fem., central herm., 
all tubular. Pappus capillary. Receptacle flat, naked. In- 
volucre hemispherical, imbricated; the scales equalling the 
florets but not intermixed with them. — Cor. of the fem. 
florets often obsolete. 
(14.) 20. Filago. Outer florets fem., filiform, in several 
rows, outermost ones intermixed with the inner scales of the 
involucre or paleffi ; central florets few, herm., tubular. 
Pappus caj)illary. Rece])tacle conical, scaly at the margin. 
Involucre subconical, imbricated, scales lanceolate longer 
than the florets. 
(15.) 22. Antennaria. Heads subdioccious. Male florets 
