COMPOSITE 127 



Tribe III. ASTEROIDE.E. Leaves alternate. Kay flowers female or neuter, 

 ligulate, rarely all tubular. Disk flowers 2-sexual. Anther-cells not tailed. 

 Pappus hairs or scales rigid or o. Style arms usually flattened. 



Ray flowers purple, i seriate or o. Pappus rigid ASTER. 



Ray flowers in 2 or more series. Pappus hairs rigid ERIGERON. 



Ray flowers ? in 2 series. Involucre campanulate BELLIDIASTRUM. 



Ray flowers white or pink in one series. Pappus o _ BELLIS. 



Ray flowers yellow. Pappus hairs rigid or o SOLIDAGO. 



Ray flowers numerous, filiform, in many rows. Disk flowers few CONYZA. 



Tribe IV. INULOIDE^E. Leaves alternate. Ray flowers ligulate, yellow, or 

 o ; disk flowers tubular. Anther-cells with slender tails. 



Pappus scabrid, simple. Ray flowers ligulate INULA. 



Pappus scabrid, with an outer row of short scales. Ray flowers ligulate 



PULICARIA. 

 Achenes crowned by a membrane. Involucral bracts almost equal 



BUPHTHALMUM. 



Achenes crowned by a membrane, much compressed. Outer involucral bracts 

 large, spreading and irregular ASTERISCUS. 



Tribe V. CALENDULE^E. Involucre hemispherical, with bracts in 2 series. 

 Achenes curved, muricate. Leaves almost entire CALENDULA. 



Tribe VI. GNAPHALIE^E. Involucral bracts often scarious. Flowers all 

 tubular. Style arms linear obtuse. Achenes cylindrical or compressed. 



Leaf borders rolled in below. Inner involucral bracts acute PHAGNALON. 



Leaf borders rolled in below. Inner involucral bracts obtuse HELICHRYSUM. 



Heads dioecious. Receptacle flat, naked. Pappus silky GNAPHALIUM. 



Heads subdicecious. Pappus of male clavate silky ANTENNARIA. 



Heads dioecious. Receptacle conical ; scales few FILAGO. 



Leaves flat, entire or crenate, whitish. Inner involucral bracts hooded 



MICROPUS. 

 Plants whitish, minute. Involucral bracts all flat EVAX. 



Tribe VII. ANTHEMIDE/E. Leaves alternate. Ray flowers ligulate, or 

 tubular and very slender. Anther-cells not tailed. Style arms linear with 

 truncate tips. Pappus o or minute. 



Ligule oblong. Fruit terete or angled ANTHEMIS. 



Ligule broad, short. Fruit compressed ACHILLEA. 



Receptacle hemispherical ; achenes compressed, with 2 membranous wings 



ANACYCLUS. 



Flowers all tubular and compressed. Plant white-tomentose DIOTIS. 



Receptacle hemispherical. Heads in a corymb ; PYRETHRUM. 



Receptacle conic, naked, often elongating MATRICARIA. 



Receptacle flat or convex, naked. Leaves pinnatifid or toothed 



CHRYSANTHEMUM. 



Receptacle hemispherical. Heads solitary at top of branches 



LBUCANTHEMUM. 



Tribe VIII. ARTEMISIE^. Flowers all tubular. Receptacle usually 

 naked. 



Flowers all tubular. Involucral bracts few seriate. Receptacle narrow 



ARTEMISIA. 



Flowers all tubular. Involucral bracts many seriate. Receptacle broad 



TANACBTUM. 

 Flowers all tubular. Outer ones $ , tube compressed winged SANTOLINA. 



Tribe IX. SENECIONIDE^E. Leaves alternate. Flowers all yellow, tubular 

 and 2-sexual, or outer ligulate. Receptacle naked. Anther-cells without 

 tails. Pappus hairs usually very soft. Style arms of disk florets free. 



