Index to Genera. 
Leiolepisma 76 
Lespedeza 110 
Leydigia 165, 168-171, 174 
Liatris 112 
Limnaeus 161, 165 
Linaria 102, 106, 111 
Linum 110 
Lithodytes 73-82 
Luzula 108 
Maclura 54 
Macrocheles 114 
Marshallia 112 
Melica 101, 108 
Moina 160, 168-171, 174 
Morus 54 
Negundo 54 
Notaspis 119 
Nothoscordum 108 
Oenothera 111 
Omphalina 76 
Opuntia 103, 110 
Oribata 117-119 
Oxalis 110 
Panicum 107 
Peromyscus 76 
Phacelia 102, 111 
Physalis 112 
Plantago 112 
Platanus 54 
Pleuroxus 166, 168-171, 174 
Polygala 110 
Polygonum 103, 108 
Polygyra 75-76 
Polystictus 55 
Populus 54 
Portulaca 102, 106, 109 
Praticolella 76 
Proteus 83 
Prunus 109 
Pseudosida 159, 168-171, 174 
Ptelea 110 
Ptilimnium 102, 111 
Pyriamidula 76 
Quercus 105, 108 
Rana 76, 81 
Ranunculus 109 
Rhus 110 
Ribes 109 
Rosa 105, 109 
Rubus 105, 109 
Rudbeckia 112 
Ruellia 112 
Rumex 102, 108 
Sabbatia 111 
Salix 54 
Samia 21-48 
Sassafras 109 
Saxifraga 102, 109 
Scaphiopus 80-81 
Scapholeberis 160, 168-171, 174 
Sceloporus 74 
Schistocera 75 
Scutellaria 111 
Sedum 102, 104, 109 
Selaginella 103, 107 
Selenia 102-104, 106, 109 
Simocephalus 161, 168-171, 174 
Specularia 106, 112 
Spermolepis 102, 111 
Spiranthes 108 
Stenophyllus 102, 108 
Storeria 76 
Stylosanthes 110 
Talinum 102, 106, 109 
Tephrosia 110 
Tradescantia 108 
Trifolium 110 
Tropidonotus 75 
Typhlomolge 83, 85-86 
Typhlotriton 83-96 
Ulmus 54 
Uropoda 116-117 
Vaccinium 105, 111 
Valerianella 112 
Vespa XXvii 
Vitrea 76 
Woodsia 101, 107 
Zamenis 75 
181 
