NOTES ON MOUND FLORA OF ATCHISON CO., MO. 127 
PHASEOLUS PAUCIFLORUS Benth. 
Common along the lower part of the mounds, and along 
the backbones. P. angulosa Missouriensis ( Wats. ), Britt. 
(Watson No. 213), was tolerably common in marshy 
places on the bottom-prairie near the mounds. (Watson 
No. 212.) 
Acuan Ixurnoensis (Michx.) Kuntze. 
Very common in the bare gravelly ground at the base of 
the mounds. (Watson No. 214.) 
Prunus Vireiniana L. 
Abundant in the pockets on the north sides of the 
mounds, and is said by the country people to rarely fruit. 
(Watson No. 243.) 
Rosa ARKANSANA Porter. 
Abundant on the lower part of the mounds and along 
the backbones. The receptacles are unusually large, rang- 
ing from 12 mm. to 18 mm. in thickness, and the stems of 
the season are often 25 mm. thick and exceedingly prickly. 
(Watson No. 246.) 
AMELANCHIER CANADENSIS (L.) Medic. 
Common on the east sides of the mounds, and in the 
pockets on the north, often becoming quite arborescent. 
( Watson No. 313.) 
MERIOLA SERRULATA (Nutt. ) Walp. 
Abundant on the tops and sides of all the mounds. 
The flowers are from 12 to 15 mm. wide. (Watson No. 
330. ) 
GAURA PARVIFLORA Dougl. 
Common near the base of the mounds, and along the 
backbones. (Watson No. 334.) 
