72 



Onosmodium 40 



Ophioglossum 69 



Opuntia 22 



Orchis 53 



Origanum 39 



Ornithogalum 56 



Orobancne 36 



Orontiura 52 



Oryzopsis 64 



Osmorrhiza 23 



Osniunda 69 



Ostrya 50 



Oxalis 13 



Oxydendrum 34 



Panicum 66 



Papaver 7 



Pardanthus 55 



Parietaria 48 



Paronychia 12 



Parthenium 29 



Paspalum 66 



Passiflora 22 



Pastinaca 23 



Pedicularis 37 



Pelltea „ 68 



Peltandra 52 



Penthorum 21 



Pentstemon 36 



Perilla 39 



Persea 46 



Phacelia 41 



Phalaris 66 



Phaseolus 17 



Phegopteris 68 



Philadelphus 20 



Phleum 63 



Phlox 41 



Phoradendron 47 



Phryma 38 



Phyllanthus 48 



Physalis 42 



Physostegia 39 



Phytolacca 44 



Pilea 48 



Pinus 51 



Plantago 35 



Platanus 48 



Pluchea 29 



Poa 64 



Podophyllum 7 



Podostemon 47 



Pogonia 54 



Polanisia 9 



Polemonium 41 



Polygala 15 



Polypolium 68 



Polygonatum 56 



Polygonum 45 



Polymnia 29 



Pontcderia 57 



Populus 51 



Portulaca 12 



Potamogeton 52 



Potentilla 19 



Poteriutn 18 



Proserpinaca 21 



Prunus 18 



Ptelea 13 



Pteris 68 



Pycnanthemum 39 



Pyrola 34 



Pyrus 20 



Quamoclit 41 



Quercus 49 



Ranunculus 5 



Raphanus 9 



Rhamnus 14 



Rhexia 22 



Rhododendron 34 



Rhus 13 



Rhynchosia 17 



Rhynchospora 59 



Ribes 20 



Ricinus 47 



Robinia 16 



Rosa 19 



Rubus 19 



Rudbeckia 29 



Ruellia 38 



Rumex 46 



Ruppia 52 



Sabbatia 42 



Sagina 11 



Sagittaria 53 



Salicornia 45 



Salix 50 



Salvia 39 



Salsola 45 



Sambucus 24 



Samolus 36 



Sanicula 23 



8anguinaria 7 



Saponaria 11 



Sarracenia 7 



Sassafras 46 



Saururus 47 



Saxifraga 20 



Schollera 58 



Scirpus 59 



Scleranthus.... 12 



Scleria 60 



Scrophularia 36 



Scutellaria 39 



Sedum 21 



Selaginella 69 



Senecio 31 



Sericocarpua 27 



Setaria 67 



Sicvos 22 



Sida 12 



Silene 11 



Silphium 29 



Sisymbrium 9 



Sisyrinchium 55 



Siuni 23 



Smilacina 66 



Smilax 55 



Solatium 42 



Solea 9 



Solidago 28 



Sonchus 33 



Sorghum 67 



Sparganium 52 



Spartina 64 



Specularia 33 



Spergula 11 



Spergularia 11 



Spigelia 43 



Spirsea 18 



Spiranthes 54 



Stachys 40 



Staphylea 14 



Statice 35 



Stellaria 11 



Stenanthium 55 



Stipa 64 



Stylosanthes 16 



Symphoricarpus 24 



Symphytum 40 



Symplocarpus 52 



Talinum 12 



Tanacetum 31 



Taraxacum 32 



Taxodiura 51 



Taxus 51 



Tecoma 36 



Tephrosia 16 



Teucrium 38 



Thalictrum 5 



Thaspium 23 



Thlaspi 9 



Thymus 39 



Tiarella 21 



Tilia 12 



Tipularia 54 



Tofieldia 56 



Tradescantia 58 



Tragopogon 33 



Trautvetteria 5 



Trichostema 38 



Tricuspis 64 



Trifolium 15 



Trillium 55 



Triosteum 24 



Tripsacum 67 



Trisetum 66 



Triticum 65 



Tussilago 27 



Typha 52 



Uimus 48 



Uniola 65 



Urtica 48 



Utricularia 36 



Uvularia 56 



Vaccinium 33 



Valeriana 25 



Vallisneria 53 



Veratrum 56 



Verbascum 36 



Verbena 38 



Verbesina 30 



Vernonia 26 



Veronica 37 



Viburnum 25 



Vicia 17 



Vilfa 63 



Vinca 43 



Viola 9 



Vitis 14 



Wistaria 16 



Woodsia 69 



Woodwardia 68 



Xanthium 29 



Xyris 58 



Yucca 56 



Zannichellia 52 



Zanthoxylum 13 



Zizania 63 



Zizia 23 



