ASTER RUPICOLA 183 
The preceding examples are plants otherwise nearly or quite 
normal. Variants are also common, in which the leaf-form, bract- 
form, and habit are all surprisingly modified, though seeming to 
belong here by balance of characters; including the following 
forms : 
20' Angulate form. Leaves usually a little longer in propor- 
tion, their teeth more narrowly. acuminate, the outline not a con- 
tinuous series of curves as in the type, but disturbed by irregular 
Deltoid 
and abrupt projections. Intermediate to 4. divaricatus L. For 
a typical leaf of this form see Fic. 2 
aprons : | 
M. V., Zashmoo tien Au. 11,’90; West Tisbury, Trout pond, Se. 4, 797; 
Davistown, Aip e. 
N. ^ perii) Under Se. 30, '97 ; full height again, June 15, '98. 
WY vie, Fi r Pars, central rocks, Se. 98, '99. 
20° Plate um (Fic. 29 shows its characteristic ki: 
