128 MISSOURI BOTANICAL GARDEN. 
GAURA COCCINEA Pursh. 
Abundant on the steep faces of most of the mounds. 
(Watson No. 333.) 
SYMPHORICARPUS OCCIDENTALIS Hook. 
Abundant at the base of the mounds, and in the pockets 
on the north sides. S. Symphoricarpus (L.) MacM. 
(Watson No. 378), which flowers a month or more later, 
is abundant in the belt of timber to the back of the mounds. 
(Watson No. 379.) 
HovusTonIA ANGUSTIFOLIA Michx. 
Common on the tops and down the sides of the mounds. 
This is probably the only locality north of the Missouri 
River where this species is found in the State. (Watson 
No. 384.) 
KUHNIA EUPATORIOIDES L. 
Common near the base of the mounds in bare ground. 
(Watson No. 389.) 
LacinaRia PuNCcTATA (Hook.) Kuntze. 
Common on the steep faces on the south and west sides 
of the mounds. The other known Missouri stations for 
this species are: on a high rocky ridge on the prairie west 
of Lee’s Summit in Jackson County, and on a bald knob 
in Wright County. L. pycnostachya (Michx.) Kuntze 
(Watson No. 388), is common on the bottom prairie close 
by the mounds. (Watson No. 387.) 
SOLIDAGO speciosa Nutt. 
Common on most of the mounds in open ground, but 
being a much reduced form. (Watson No. 397.) 
SOLIDAGO RUPESTRIS Raf, 
Abundant on the tops of the mounds. The plants are 
very much reduced, being only about 3 dm. in height. 
(Watson No. 398.) 
