128 IOWA ACADEMY OF SCIENCE 
Dentaria laciniata Muhl 41 y 2 
Desmodium — see Meibomia. 
Echinocystis — see Micrampelis. 
Elymus canadensis L 26, 28, 115 
Ellisia — see Macrocalyx. 
Erechitites hieracifolia (L.) Raf 68 
Erigeron annnns (L.) Pers 136 
Erigeron philadelphicus L 136 
Euonymous antopurpureus Jacq 60 
Euphorbia earollata L 82 
Euphorbia maculata L. 91 
Falcata comosa (L.) Kuntze 5 
Falca'ta pitcheri (T. & G.) Kuntze 5, 73 
Falcata sp 62 
Filix fragilis (L.) Underw 131 
Fragaria Virginian a Due. ... . 22 
Fragaria chiloensis 22 
Fraxinus americama; L 1 137 
Fraxinus lanceolata Borck 137 
Galium circaezans Michx 74 
Galium trifidum L 103 
Gaura biennis L. 11 
Geranium malculatum L 93 
Gonolobus laevis Michx. 12 
Helenium antumnale L 74 
Helianjthus annuus L 105 
Helianthus grosse-serratus Martens 74 
Helianthus tuberosus L 74, 134 
Efjeliopsis scabra Dunal 76 
Hordeum jubatum L 104 
Hordeum pratense L . 104 
Impialtiens aurea Muhl 43, 139 
Juglans cinerea L 49 
Juncus tenuis Willd 95 
Junipierus virginiana L 120 
Koellia virginiana (L.) McM 109 
Lacinaria sp .' 37 
Lactuca canadensis L 134 
Lepidium apetalum Willd 6, 13 
Leptatndra virginica (L.) Nutt... 68 
Leptilon canadense (Tj.) • Britt 136 
