200 
45. COMPOSIT.E. 
41. Helminthia. Phyll. iii 1 row, equal, with equal subu- 
late adpressed ones at tbe base, and surronncled by 3 — 5 
hajiike loose bracts. Fr. compressed, transversely rugose, 
rounded at the end and xoitli a slender beak longer than the 
fruit. Pappus in several rows, feathery. 
***** Papjms fliform, deciduous, never feathery nor dilated at 
the base. Jiecejdacle r/enerally m'thout scales. Fruit corn- 
jnrssed. 
42. Lactuca. Heads fevz-Howered. Phyll. 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. Taeaxacum. Heads raany-fioweied. Inv. double: 'mimr 
phyll. in 1 row, erect ; outer few, short, lax or adpressed, 
imbricate. Fr. subcompressed, muricate and suddenly con- 
tracted above, prolonged into a filiform beak. 
44. SoNCHUS. Heads many-flowered. Phyll. imbricate in 
2 or 3 rows, une<iual. Fr. jilane coi/ipressed, truncate, not 
beaked. 
45. MuLGEDiUM. Heads many-flowered. Inv. double ; inner 
phyll. in 1 row ; outer short, lax, imbricate. /')■. compressed, 
constricted above, and emling in a ciliate disk. Outer rows 
of the pappus rigid and brittle. 
****** Fruit terete, ribbed. Othenvi-fc like the jirecediny section. 
46. Crepis. Heads many-flowered. Inv. double ; inner 
phyll. in 1 i-ow ; outer short, lax. Fr. terete, narrowed 
upwards or beaked. Pappus soft. 
47. HlERACiTTM. Heads many-flowered. Phjdl. imbricate, 
many, oblong. Fr. truncate, not beaked, with a very short 
crenulate margin. Pappus brittle. 
{Anotmdotts Genus. Order AMTUiosTACEif, Link.] 
[48. Xanthium. Heads monoecious. — Male : inv. of 1 row 
of free phyll., many-flowered. Recei)tacle scaly. Cor. 
funnelshaped, 5-cleft. Anth. free. Stigma blunt, entire. 
— Fem. fl. 2, enclosed within the inv. which ends in 1 — 2 
beaks, is covered with hooked spines, and hardens over the 
fruit. Cor. 0. Stani. 0. Stigmas 2, diverging, lineai'. 
Fr. compressed, each occupying a cell in the involucre.] 
