30 



Leersia, 



Lemna, 



Leontodon, 



Leonurus, 



Lepidium, 



Lespedeza, 



Leucanthemum, . 



Leucothoe, 



Liatris, 



Lilium 



Limnanthemum, . 



Linaria, 12, 



Lilium, 



Liparis, 



Lobelia, ..19, 20, 



Ludwigia, 



Lupinus, 



Luzula, 



Lycopodium, . . . 



Lycopus, 



Lysimachia, • .15, 



Lythrum, 



Malva, 9, 



Marchantia, 



Maruta, 



Medeola 



Medicago, 



Melampyrum, . . . 



Melilotus, 



Mentha, 



Microstylis, 



Mikania, 



Mimulus, 



Mitch ella 



Mcehringia 



Mollugo, 



Monotropa, 



Muhlenbergia, 22, 

 Myosotis, .... 10, 



Myrica, 



Nabalus 



Nemopanthes, . . . 



Nepeta, 9, 



Nesnea, 



Nuphar, 



Nymphsea, 



Nyssa 



25 | Obione 



19 (Enothera, . . . 13, 



21 Oldenlandia, 



17 Onoclea, 



14 | Onosmodium, . . . 

 21 i Osmunda,.9, 10, 



12 I Ostrya, 



9 i Oxalis, 



Panicum, 



14, 15, 22, 25, 



Paspalum, 



Pastinaca 



Pedicularis, 



Penthorum, .... 



Phalaris, 



Phaseolus 



10 Phleum, 



7 

 23 

 20 

 20 

 23 

 25 

 12 

 17 

 13 

 10 

 12 

 IS 

 23 

 12 

 25 

 21 

 14 

 10 

 21 

 18 

 25 

 15 

 11 

 21 

 11 

 17 

 21 

 11 

 15 

 14 



Physostegia, 



Phytolacca, 



Pilea 



Pinus, 



Plantago, ..8, 18, 

 Platanthera, 



17, 20, 



Platamis, 



Pluchea 



Poa, ...6, 12, 15, 



Pogonia, 12, 



Poly gala, 15, 



Polygonatum, . . . 

 Polygonum, 



19, 20, 23, 



Polypodium, 



Pontederia, 



Populus, 



Portulaca, 



Potamogeton, . 15, 

 Potentilla,.6, 12, 

 Proserpinaca, . . . 



Primus, 



Pteris, 



Pycrianthemum, . 



Pyrola, 



Pyrus 10, 



Quercus, 10, 



Ranunculus, 



8, 9, 13, 



22 

 IS 

 . 9 

 16 

 17 

 14 



26 

 22 

 17 

 9| 

 23 

 15 

 22 

 15 

 23 

 19 

 26 | 

 11 

 23 



21 

 11 



2i 

 18 

 14 

 20 

 10 



26 i 



16 



19 



5 

 23 

 16 

 13 

 20 

 10 

 1 6 

 20 

 17 

 13 

 11 



19 



Raphanus 9 



Rhamnus, 13 



Rhexia, 21 



Rhodora, 6 



Rhus, 15, 24 



Rhynchospora, . . 17 



Ribes, 8 



Robinia, 16 



Rosa, 15 



Rubus, 12 



Rudbeckia, 17 



Rumex, 10, 14 



Ruppia, 16 



Sabbatia, 21 



Sagina, 9 



Sagittaria, 21 



Salicornia, 22 



Salix, 5 



Salsola, . 26 



Sambucus, 17 



Sanicula, 14 



Saponaria, 21 



Sarracenia 12 



Sassafras 10 



Saxifraga, 9 



Scirpus, ..12, 13, 21 



Scleranthus, 18 



Scutellaria 20 



Sedum 15, 23 



Selaginella, 23 



Senecio, 5, 10 



Sericocarpus, ... 19 



Setaria, 22 



Silene, 10,16 



Sinapis, 9 



Sisymbrium, 9 



Sisyrinchium, ... 12 



Sium, 19 



Smilacina, . . .10, 12 



Smilax 12, 13 



Solanum, 14, 21 



Solidago, 25, 26 



Sonchus 15 



Sorghum, 26 



Sparganium, .... 18 



Spartina, 22, 25 



Specularia, 15 



; Spergula, 14 



Spergularia, 9 



Spiraea, 17, 20 



Spiranthes,...23,25 



! Sporobolus, 25 



' Stachys, 20 



| Statice 23 



Stellaria 5 



! Stipa, 13 



i Symphytum, 17 



| Symplocarpus, ... 5 



Tanacetum 19 



Taraxacum 6 



Tephrosia, 18 



Teucrium, 23 



Thalictrum, . . 10, 15 

 Trichostema, .... 25 



Tricuspis 26 



Trientalis, 10 



Trifolium, 11,14 



Triglochin 12 



Trisetum, 15 



Triticum, 13 



Turritis, 9 



Typha, 18 



Ulmus, 6 



Urtica 20 



Utricularia, 21 



Uvularia, 9 



; Vaccinium,.8, 9, 17 



| Verbascum, 17 



i Verbena, 21 



Vernonia, 25 



Veronica, 8, 17 



I Viburnum, .. .13, 14 



Vicia 15 



I Vilfa, 26 



I Viola 7 



Vitis, 



Woodsia, .... 



Woodwardia, 



! Xanthium, . . 



Xyris, 



Zostera, 



17 

 16 



16 

 25 

 23 

 ,16 



