LXV. COMPOSITE.. 785 



Tkibe IV. ZnuloiAeae. —Heads tvitli the flurets all similar, or the outer ligulate. Anther- 

 cells tailed. Style-bramhen linear, obtuse, or Htijles of the sterile florets inuiivided. Leaves 

 mualUj alternate. Disk and ray-florets usualhj bothijellow. 



SuBTKiBE I. Plucheineae. — Heads androgynous. Involucral bracts dry or herbaceous, 

 rarely subscarions. Receptacle naked. Style-branches of hermaphrodite filiform not truncate, or 

 style of sterile florets entire. 



Involucral bracts narrow. Anthers caudate. Pappus bristles slender, 



copious 20. Bldmea. 



Involucral bracts dry, usually broad. Pappus bristly, slender, copious, . 21. Pluciika. 

 Ihvolucral bracts dry or leafy, coloured at apex. Pappus of 1 or 2 series, 



rigid, scabrous 22. Ptehigekox. 



Involucral bracts dry, rigid, and acute. Pappus bristles 5 to 12, flat, 



scale-like 23. Thespidiu-u. 



Involucral bracts broad, dry, the inner ones lacerated at the top. 



Pappus a jagged tube or cup 24. Coleocojia. 



Pappus of female florets none, of sterile disk ones small 25. Epaltes. 



Heads of florets in dense, globose, or ovoid masses. Corolla of female 

 florets filiform. Herbs with winged stems. • 



Pappus none 26. Sph^ranthus. 



Pappus-hairs slender ■ 27. Ptehocaulon. 



SuBTEiBE II. Gnaphaliese^ — Heads androgynous, disciform,, or homogamous and discoid. 

 Involucral bracts scarious, usually hyaline, or the inner ones radiating. Receptacle usually 

 naked. Style-branches of hermaphrodite fl,orets truncate. 



Series I. Eugrnaphalieae. — Involucral bracts rarely radiate, lieceptacle epaleaceous. 



Inner involucral bracts with recurved horn-like tips. Pappus none . . 28. SinARTiNA. 

 Involucral bracts often coloured, rarely radiate. Pappus bristles not 

 plumose, free or connate in a ring at the base . 29. GNAPHALimi. 



Series II. Kelichrysese. — Involucral bracts scarious or lamina petaloid, radiatinq or 

 rarely linear, subherbaceous or membranous. lieceptacle naked or rarely paleaceous. 



Outer involucral bracts thin and scarious. Achenes more or less 



distinctly contracted into a beak 30. Leptorhynohur. 



Involucral bracts scarious or petal-like, or with petal-like lamina. 



Achenes with slender beaks. Pappus bristles plumose 31. Waitzia. 



Achenes not beaked. 



Pappus bristles plumose at the base 32. Helipterdm. 



Pappus bristles smooth, scabrous, barbellate or plumose towards the 



apex, most frequently 1-seriate 33. Helichrysum. 



Receptacle with narrow, fiat, or concave scales between the florets. 



Pappus bristles capillary, distinct 34. Cassinia. 



Involucral bracts narrow, with short scarious or radiating tips. Achenes 



not beaked. Pappus simple 35. Ixiol^na. 



Involucral bracts nearly equal, narrow. Achenes contracted into a 



slender beak. Pappus bristles capillary, barbellate or ciliate . . .36. Millotia. 

 Involucral bracts scarious. Pappus scales obtuse, or jagged, or divided 



into bristle-like branches .... 37. Kutidosis. 



Involucral bracts petaloid and radiating at the apex. Pappus a scarious 



cup. Eeceptacle scales broad, flat or concave 38. Ammobium. 



Involucre globose, enveloped in dense wool, the inner bracts scarious 



not radiating. Eeceptacle conical without scales 39. Ekiochlamys. 



Heads homogamous. 

 Involucral bracts 3 or 4-seriate. Anthers hastate at base, ecaudate. 

 Style-branches subulate. Pappus bristles 1-seviate, joined in bundles 



of from 2 to 4, scabrous 40. Phacellothkix. 



Involucre broadly hemispherical, with scarious bracts, not radiating. 



Receptacle without scales 41. Aoomis. 



Subtribe III. Angriantheae. — Flower-Iteads small, usually numerous, sessile or nearly so 

 on a common receptacle, in a dense cluster or compomul head, usually surrounded by scarious or 

 leafy bracts, forming a general involucre. Florets hermaphrodite, a few rarely sterile. 



Receptacles (within the partial heads) with scales between the florets. 

 General involucre of numerous bracts, in several rows, usually with 

 scarious tips or small radiating lamina. General rnceptacle broad 

 and flat. Pappus none or various 42. Mvriocephalus. 



