FAMILIES OF PLANTS 
123 
Each flowering stem bears a single large head with lavender ray 
flowers and yellow disk flowers. 
Townsendia alpina , T. dejecta , T. excarpa and T. ftorifer have also 
been reported in the park. 
Figure 98.—Mountain-gold. Yellow. Copyright J. E. Haynes. 
Figure 99. —Townsendia. Violet or pur- Figure 100. —Aster. Violet. Copyright, 
pie. Copyright, J. E. Haynes. J. E. Haynes. 
Aster {Aster ).-—The asters constitute a large genus some of which 
are rather difficult to distinguish. They are herbs with alternate 
loaves and heads of white, blue, or purple ray flowers and yellow disk 
