TABLE OF GENEBA. 
XXXIX 
9. TnRiNCiA. Pappus of the outer series scaly (otherwise as Apargia). 
10. Hieracium. Involucrum imbricated, with linear-oblong scales, ovate. Recep¬ 
tacle punctured. Pappus simple, sessile. 
11. Crepis. Involucrum swollen at the base, surrounded by deciduous scales. 
Pappus simple, sessile. 
12. Borkiiausia. Involucrum oval, with deciduous scales at the base, ribbed when 
in fruit. Pappus nearly simple, stalked. 
13. Hypocikeris. Involucrum oblong, imbricated. Receptacle chaffy. Pappus 
feathery. 
14. Lapsana. Involucrum with small scales at the base ; the inner ones equal, 
linear-lanceolate. Pappus wanting. 
15. Cichorium. Involucrum of 8 united scales, with 5 smaller at the base. Pappus 
sessile, scaly, shorter than the fruit. 
tt Corollas all tubular. 
16. Arctium. Involucrum globose, the scales terminating in a hook. Pappus 
simple, short, persistent. 
17. Serratula. Dioecious. Involucrum oblong; scales acute, unarmed. Pappus 
persistent, the hairs rigid, in 3 or 4 rows. 
18. Saussurea. Involucrum oblong, scales unarmed. Anthers bristly below 
Pappus sessile, in 2 rows. 
19. Carduus. Involucrum swollen ; the scales simple, spine-pointed. Receptacle 
hairy. Pappus deciduous, hair-like, united into a ring at the base. 
20. Silybum. Filaments of stamens united (otherwise as Carduus). 
21. Cnicus. Pappus feathery (otherwise as Carduus). 
22. Onopordum. Involucrum swollen; the scales spreading, spine-pointed. Recep 
tacle honeycombed. 
23. Carlina. Involucrum swollen ; the outer scales leaf-like, sinuous, very spiny; 
the inner ones long and linear, coloured. Pappus feathery. 
24. Bidens. Involucrum double; the outer scales leafy, spreading. Outer florets 
sometimes ligulate. Receptacle chaffy. Pappus of 2-5, rough, persistent 
awns. 
25. Eupatorium. Involucrum oblong. Florets few. Receptacle naked. Pappus 
feathery. 
26. Ciirysocoma. Involucrum hemispherical. Pappus hairy. Style scarcely longer 
than the florets. 
27. Diotis. Involucrum hemispherical. Receptacle convex, chaffy, the scales not 
fringed. Pappus wanting. Fruit with 2 ear-like processes. 
** Florets of the centre perfect, those of the circumference with pistils only, 
t Outer florets not ligulate. 
28. Tanacetum. Involucrum hemispherical. Receptacle naked. Florets all tubu¬ 
lar ; those of the margin 3-cleft, sometimes wanting, the rest 5-cleft. Pappus 
obscure. 
29. Artemisia. Involucrum ovate or rounded. Receptacle naked or hairy. Florets 
all tubular; those of the margin slender, entire. Pappus wanting. 
30. Antennaria. Involucrum imbricated; the scales membranous. Receptacle 
naked. Florets of the margin awl-shaped. Pappus rough or feathery. 
Flowers dioecious. 
31. Gnaphalium. Flowers perfect (otherwise as Antennaria). 
32. Coryza. Involucrum roundish, imbricated. Florets all tubular; those of the 
circumference 3-toothed. Pappus hairy, rough. 
tt Florets of the margin ligulate, those of the disk tubular. 
33. Erigeron. Involucrum imbricated; scales linear, acute, very numerous. 
34. Tussilago. Involucrum simple; scales linear, membranous on the margin. 
Florets of the margin ray-like, numerous, linear, long; those of the disk 
few. 
