84 THE AMERICAN MIDLAND NATURALIST. . 
Solanaceae. Nightshade Family. 
Physalis virginiana Mill. GROUND CHERRY. 
Prairie and along railroad. Frequent. July 5. 
Solanum nigrum I. COMMON NIGHTSHADE. 
Gardens, riverbank and various places. Frequent. 
Solanum triflorum Nutt. CUT-LEAVED NIGHTSHADE. 
Along railroad etc. Occasional. June 20. 
Solanum rostratum Dunal. BUFFALO BUR. 
Occasionally introduced. 
Lycopersicon lycopersicon (1,.) Karst. . TOMATO. 
Common every year on the riverbank below the city. 
Scropulariaceae. Figwort Family. 
Verbascum thapsus \L. MULLEIN. 
Lee and Wright in 1891. 
Verbaseum blattaria L,. MOTH MULLEIN. 
L. R. Waldron in 1go1. 
Linaria linaria (ny Karst. TOAD FLAX. 
Occasionally escaped or introduced? Bolley in 1891. June 25. 
Scrophularia leporella Bickn. FIGWORT. 
Roadsides or edges of thickets. Occasional. June 1o (11). 
Pentsemon gracilis Nutt. SLENDER BEARD TONGUE. 
Prairie. Common. June 20 (21). 
Mimulus ringens 1,. MONKEY FLOWER. 
Riverbank. Common. June 30. 
Bacopa rotundifolia (Michx.) Wettst. WATER HYSSOP. 
In water or the mud remaining. Lee in 1892. 
Gratiola virginiana lL. HEDGE HYSSOP. 
Low fields or other wet places. Occasional. 
Lysanthes dubia~-(1,.) Barnhart. FALSE PIMPERNELL. 
Low field at Wild Rice (10 mi. ect Stevens in 1914. 
Limosella aquatica \. MUDWORT. 
Roadside ditch; Stevens in 1917 (seeds only, collected). 
Veronica peregrina L. SPEEDWELL. 
Low places in fields, etc. Common. May 25 (23). 
Gerardia tenuifolia Vahl. SLENDER GERARDIA. 
Lee in_1892. 
