4 THE FLORA OF THE ALPS 



P. albus, Gaertn. ; flowers yellowish-white, often mostly 

 female, leaves roundish-cordate, thinly tomentose be- 

 neath; by mountain streams; Switzerland, Jura, Vosges, 

 Dauphiny. P- niveus, Baumg. ; flowers white or reddish, 

 often chiefly female, leaves cordate-triangular, tomentose 

 and snow-white beneath ; by mountain streams, frequent. 



Tribe ASTEROIDE^. — Ray-flowers female or neuter, 

 ligulate, rarely all tubular, branches of style linear, 

 blunt, glabrous; disk-flowers bisexual, anther-cells not 

 tailed, branches of style linear, glabrous, tipped with a 

 pubescent cone ; pappus-hairs rigid or o ; leaves alternate. 

 Genera 6-11. 



6. Bellis, L. 



Capitule solitary ; disk-flowers yellow, ray-flowers 

 white or pink; involucre campanulate, bracts in I or 2 

 rows, soft, green. Not alpine. 



B. perennis, L., Daisy; everywhere. 



7. Bellidiastrum, Cass. 



Resembling Bellis, but achenes crowned by the per- 

 manent pappus. 



B. Michelii, Cass., Alpine Daisy; resembling Bellis 

 perennis, but a larger plant, with more coarsely crenate 

 leaves, and the bracts of the involucre acute ; mountain 

 pastures, frequent. 



8. Erigeron, L. 

 Ray-flowers female, blue or purple, in several rows; 

 disk-flowers bisexual, yellow; bracts in several rows; 

 receptacle flat, pitted; pappus persistent. Mostly alpine. 



