IOWA ACADEMY OP SCIENCES. 
179 
PORTULACACE^. 
Portulaca oleracea L. Pottawattamie county. Waste places; 
common. 
Hypericace^. 
B.%fiD6Ticum ascyron L. This species was frequent in Otoe and 
Cass counties, Nebraska, opposite Fremont county, Iowa. It 
was not noticed eastward of the Missouri river. 
H. prolificum L. Johnson county. Frequent, locally. 
H. mutilum L. Johnson county. 
H. cistifolium Lam. Fremont county. Several specimens 
were obtained. 
H. maculatum Walt. Ringgold and Taylor counties. Open 
places; frequent. 
Malvace^. 
AltJicea rosea Cav. Decatur county. Occasionally an escape. 
M alva crispa L. Decatur county. Several specimens obtained 
in waste places. 
M. TotundifoUa L. Union, Taylor, and Fremont counties. 
Waste places; common. 
Sicla spinosa L. Page and Fremont counties. Waste places; 
frequent. 
Abutilon avicennce Gaertn. Union, Adams, Pottawattamie, 
Ringgold, Page, Taylor, and Fremont counties. 
Hibiscus militaris Cav. Fremont county. Wabonsie slough 
and elsewhere; frequent; also in Cass county, Nebraska, 
opposite Fremont county. 
H. trionum L. Ringgold and Fremont counties. Fields; 
frequent. 
Tiliace^. 
Tilia americana L. Union, Montgomery, Ringgold, and 
Fremont counties. Low woods; frequent. 
Linages. 
Linum sulcatum Riddell. Ringgold and Taylor counties. 
Prairies; frequent. 
Geraniace^. 
Oxalis violacea L. Union county. Common. 
0. stricta L. Clarke, Union, Taylor, Fremont and Pottawat- 
tamie counties. Fields and woods; common. 
Impatiens pallida Nutt. Taylor and Fremont counties. Wet 
woods; frequent. 
