IOWA ACADEMY OP SCIENCES. 
85 
CAPPARIDACE^. 
Polanisia graveolens Rxf. (?) Probibly P. trachyspermum Torr. 
and Gray. Sandy ground, rare. 
CISTACE^. 
Helianthemum canadense Michx. Dry hills, infrequent. 
Lechea minor L. Dry prairies, infrequent. 
VIOLACE^. 
Viola pedata L. Prairies and open woods, common. 
V. pedatijlda Don. Prairies, frequent. 
V. palmata C., var. cucullata Gray. Low prairies, common. 
V. sagittata Ait. Pound only in the first railroad cut two 
miles south of Fayette. 
V. Nanda Willd. Moist prairies, rare. Mr. W. P. Baker, 
coll. 
V. pubescens Ait. Woods, common. 
V. tricolor L. Rarely escaped. 
CARYOPHYLLACE^. 
Saponaria officinalis L. Frequently escaped. 
Silene stellata Ait. Woods, frequent. 
S. nivea Otth. Low prairies and woods, frequent. 
8. antirrJiina L. Dry ground, frequent. 
8, noctijlora L. Rarely escaped. 
Lychnis githago Lam. In fields, rare. 
Arenaria michauxii Hook. Dry prairies, infrequent. 
A. lateriflora L. Low prairies, rather infrequent. 
8tellaria media Smith. Low woods, infrequent. 
8. longifolia Muhl. Borders of swamps, rare. 
Cerastium vulgatum L. Dr. C. C. Parker, coll. Marked in 
herb. G viscosum L. 
G. arvense L., var. oUong I folium Britt and Hall. Dry woods, 
rare. 
PORTULACACE^. 
Portulaca oleracea L. Cultivated and waste ground, abundant. 
Glaytonia virginica L. Moist woods, common. 
HYPERICACE^. 
Hypericum ascyron L. Banks of streams, infrc quent. 
H. maculatum Walt. Wet prairies, frequent. 
H. canadense L., var. majus Gray. Banks and low prairies, 
common. 
Elodes campanulata Pursh. Borders of swamps, infrequent. 
