45. coiirosiTJi, 181 



stnallel', in 1 — 3 rows. Fr. vniform, slightly beaked, 

 Pappits of all the fr. in 2 rows ; outer setaceous, persistent ; 

 inner longer, feathery, dUated at the base ; or in 1 row, 

 feathery. 



39. Tbagopogon. Inv. simple, of 8—10 equal phyll. con- 

 nected at the base. Fr. longitudinally striate, with a loDg 

 beak; basal scar lateral. Pappus in many rows, feathery, 

 inteiieoven in the ray. 



40. PiCBis. Phyll. in 1 row, equal, unth unequal linear often 

 spreading ones at the base. Fr. terete, transversely striate, 

 constricted or slightly beaJced above. Pappus in 2 rowSf 

 feathery ; external row rather hairlikc. 



41. Hblmi:nthia. Phyll. in 1 row, equal, -wiVa. equal subu- 

 late adpressed ones at the base, and surrounded by 3 — 5 

 leaflike loose bracts. Fr. compressed, transversely rugose, 

 rounded at the end and with u, slender beak longer than the 

 fruit. Pappus in several rows, feathery. 



***** Pappus filiform, deciduous, never feathery nor dilated at 

 the base. Receptacle generally without scales. Fruit com- 



42. Lactttca. Heads few-flowered. PhyU. with a mem- 

 branous margin, imbricate in 2 — 4 rows : outer row shorter. 

 Fr. plane compressed, contracted and prolonged into a fili- 

 form beak which is neither crowned nor muricate. 



43. Takaxacum. Heads many-flowered. Inv. double ; inner 

 phyll. in 1 row, erect ; outer few, short, lax or adpressed, 

 imbricate. Fr. subcompressed, muricate and suddenly c<»*- 

 tracted above, prolonged into a filiform beak. 



44. SoNCHUS. Heads many-flowered. Phyll. imbricate in 

 2 or 3 rows, unequal. Fr, plane-compressed, truncate, not 

 beaked. 



45. Mtjxgedium. Heads many-flowered. Inv. double ; inner 

 phyll. in 1 row ; outer short, lax, imbricate. Fr. compressed, 

 constricted above, and ending in a ciliate dish. Outer rows 

 of the pappus rigid and brittle. 



****** Fruit terete, ribbed. Otherwise like the preceding sectimi. 



46. CuEPis. Heads many-flowered. Inv. double ; inner 

 phyll. in 1 row ; outer short, lax. Fr. terete, narrowed 

 upwards or beaked. Pappus soft. 



47. HiEEACiUM. Heads many-flowered. Phyll. imbricate. 



