45. COMPOSITE. 
171 
• Pappus like a crown or of many entire broad scales. Recep- 
tacle icithoift scales. 
33. Arnoseris. Heads many-flowered. Phyll. in 1 row, 
about 12, keeled, linear-laueeolate, at length converging, a 
few small bracts at tbeir base. Fr. angular, crowned with 
a short elevated entire mai-gin. 
34. CiCHoaioi. Heads many-flowered. Phyll. in 2 rows ; 
outer of about 5, lax, shortish ; inner of 8 — 10, longer, con- 
verging, at length rejiexed. Receptacle sometimes slightly 
pilose. Fr. obovate, compressed, striate. Pappus of 2 rows 
of minute erect chafiy scales. 
*** Pappus feathery. Receptacle scaly. 
35. H\T>ocHCEBis. Heads many-flowered. Phyll. oblong, 
imbricate. Fr. glabrous, muricate, often beaked. Pappus 
in 2 row£, outer short and setaceous, inner long and lea- 
theiy ; or in 1 row and feathery. 
•** Pappus feathery, or on the exterior fruits scaly. Receptacle 
without scales. 
36. Thbixcia. Inv. oblong. Phyll. in 1 row, with a few 
additional at the base. Fr. beaked. Pappus in 2 rows ; 
outer setaceous, deciduous ; inner longer, feathery, dUated 
at the base. Marginal row of fruits enveloped in the 
phyllaries, scarcely beaked, and with a short crown-like 
pappus. 
37. Ap.AJiGiA. Inv. subimbricate ; exterior phyll. much 
smaller, in 1 — 3 rows. Pr. uniform, slightly beaked. 
Pappus of all the fr. in 2 rows ; outer setaceous, persistent ; 
inner longer, feathery, dilated at the base : or in 1 row, 
feathery. 
38. Teagopogox. Inv. simple, of 8 — 10 equal phyU. con- 
nected at the base. Fr. longitudinally striate, vdth a long 
beak ; basal scar lateral. Pappus in many rows, feathery, 
iiiter woven in the ray. 
39. Picnis. Phyll. in 1 row, equal, with unequal linear often 
spreading ones at the base. Fr. terete, transversely striate, 
constricted or slightly beaked above. Pappus in 2 roics, 
feathery ; external row rather hairlike. 
40. Helmixthia. Phyll. in 1 row, equal, with equal subu- 
late adpressed ones at the base, and surrouruled by 3 — 5 
leajlike loose bracts. Fr. compressed, transversely rugose, 
rounded at the end and with a slender beak longer than the 
fruit. Pappus in several rows, feathery. 
I 2 
