NOTES ON MOUND FLORA OF ATCHISON CO., MO. 123 
ally to the bottom below, such plants as Pentstemon grandi- 
florus, Astragalus lotiflorus and Parosela enneandra are 
found. On the north there are usually pockets running up 
the sides of the mounds which are generally covered with 
dwarfed trees and shrubs, principally Corylus Americana, 
Prunus Virginiana, Ostrya Virginica, Rhus glabra, and 
Salix humilis. 
The tops of these mounds are the most peculiar feature 
of the whole country, for they present from a distance a 
very much denuded appearance, as if entirely devoid of 
vegetation. They vary considerably in height, some not 
being one-third as high as the most elevated, and one of 
the chain is said to be the highest point in the State, and 
no doubt to this great elevation is due their peculiar flora. 
The characteristic species of these mounds are Pents- 
temon grandiflorus, Spiesia Lamberti, Castilleja sessiliflora, 
Psoralea argophylla, Gaura coccinea, Glycyrrhiza lepidota, 
Yucca glauca, Meriola serrulata, Sporobolus airoides, 
Anemone cylindrica, Lacinaria punctata, Bouteloua hirsuta, 
B. oligostachya, Astragalus lotiflorus, Gerardia aspera, 
Parosela enneandra, Lithospermum angustifolium, Lygo- 
desmia juncea, Lactuca pulchella, Onosmodium molle, and 
Houstonia angustifolia, these being the predominant plants, 
and not occurring in abundance elsewhere in the State. 
The list here appended is based on specimens now in the 
Herbarium of the Missouri Botanical Garden which were 
also included in the sets distributed in 1893. 
ANEMONE CYLinpRIca A. Gray. 
Common on the tops of the mounds in bare ground: 
commonly with several peduncles involucellate in the 
middle. (Watson No. 3.) 
ANEMONE Virainiana L. 
Common along the bases of the mounds, and in the hazel 
thickets. A.Canadensis L. (Watson No. 4), was abundant 
in the bottom just below. (Watson No. 5.) 
