226 



Trans. Acad. Sci. of St. Louis. 



Ferussacia 87 



Festuca 200, 209, 210, 217-8, 220, 



pi. 19 

 Ficus 169, 179, 188, pi. 12 

 Flaveria 66 

 Fontinalis 162 

 Fraxinus 69, 169-170 

 Froelichia 62 



Gaillardia 63 



Gastrodonta 81 



Gaura 63 



Gerardia 59 



Geum 69 



Gilia 61, 63 



Gillia93 



Gleditschia 68 



Glyceria 209, 211, 217-9. pi. 1 7 



Glyptostrobu8 163 



Gnaphalium 62 



Goniobasis (91) 



Grindelia 65 



Gutierrezia 64 



Gymnocladus 68 



Gymnopogon 63 



Halictoides 50 



Halictus 44-5 



Hedeoma 66 



Hedera 171 



Helianthus 60, 62, 65-6, 69 



Heliotropium 60-1, 63 



Hemihalictus (45) 



Herpestis 58 



Heterotheca 6 



Hibiscus 60 



Hicoria 174 



Hierochloe 217 



Holcus 217 



Hordeum 200-1, 212, 214-220, pi. 



17,18 

 Houstonia 60 

 Hyalina (80) 

 Hymenopappus 60, 63 

 Hypericum 65 

 Hypnum 162, 178, 188, pi. 12 



Ilex 173, 182, 188, pi. 14 

 Ilysanthes 59 

 Indigofera 63 

 Ipomoea 62-4 



Iris 178 

 Isoetes 163 

 Isopyrum 69 

 Iva 66 



Juglans 68, 174-5, 183-4, 188, pi. 13, 



14 

 Juniperus 61, 190 

 Jussiaea 58 



Koeleria64, 209, 217, 220, pi. 19. 

 Krynitzkia 63-5 

 Kuhnia 64 



Lactuca 68-9 

 Lampsilis 77 

 Laportea 69 

 Leersia 59, 202, 217 

 Leguminosites 176 

 Lemna 58, 165 

 Lepachys 64 

 Lespedeza, 62, 65 

 Lesquerella 61 

 Liatris 62, 64-5 

 Limax 81-2 

 Limnaea 88-9 

 Linum 64-5 

 Lippia 59 

 Liquidambar 171 

 Lithospermum 60, 62, 65 

 Lolium 217 

 Lomatia 169 

 Ludwigia 59 

 Lycopus 59 

 Lythrum 59 



Macreight a 171 

 Macrocera (53) 

 Macropis 47 

 Malvastrum 64 

 Maranta xxiv 

 Megachile 48 

 Melampodium 61 

 Melica 209, 217 

 Melissodes 52-4 

 Menispermum 68 

 Mentzelia 60-1, 63 

 Mimosites (176) 177 

 Mimulus 59 

 Monarda 62, 69 

 Morus 68 



