220 



INDEX OF NOMENCLATURE. 



Paulownia imperialis 12 



tomentosa (new). 12 



Pectolite 141 



Perezia nana 1^4 



Peridium 33 



Peritricha planicola 34 



Phacelia congesta 181 



Phacus 33 



Phaseolus diversifolius 10 



helvolus 10 



umbellatus (new) 10 



Philibertia undulata 184 



Phlox Drummondii 185 



Roemeriana 185 



Physonemus Altonensis 133 



Planaria 33 



Pleurosigma 35 



Pnigeacanthus deltoides 132 



Polygala alba 183 



ambigua ... 9 



puberula 18i5 



verticillata 183 



verticillata ambigua (new) 9 



Polygonum emersum 185 



Polynemidae 15 



Porliera angustifolia 181 



Populus 31 



Porphyrite 143 



Prehnite 141 



Prosopis Juliflora 184 



Pecten Madisonius 88 



Pyrogranit 149 



Pyrrhopappus Carolinianus . . 184 



multicaulis 181 



Rhizopoda 36 



Rhododendron nudiflorum 184 



Rhus aromatica 183 



Canadensis 183 



radicans 183 



toxicodendron 183 



Radiolaria 33 



Rotifer 33 



Rottboellia corrugata 182 



Ruellia humilis 185 



ciliosa humilis (new) 185 



Sal ix nigra 185 



Salvia Texana 185 



Sapindus marginatus 183 



Scirpus atrovirens pallidus 



(new) 14 



Schcenus nigricans (new) 14 



PAGB 



Senecio canus — 11 



Hallii(new) 11 



Serpentine 200 



Serpula 33 



Setaria caudata 182 



Solanum eleagnifolium 185 



rostratum 185 



Torreyi 185 



triquetrum 181 



Solidago laeriflora 11 



Sonchus asper 181 



Sophora affinis 184 



Stethacanthus Altonensis 133 



Stilbite 143 



Stillingia angustifolia 185 



Stipa setigera 182 



Stylocola 34 



Talinum patens 181 



Taxodium distichura, . . . 31 



Termes albidus 161 



bellicosus 177 



columnaris. 158 



lucifugus 158 



minimus 158 



praelongus 160 



saltans 172 



testaceus 159 



Termitogaster insolens 163 



Teucrium laciniatum 185 



Thalamophora 33 



Thatnnosma Texanum. . . .182, 183 



Thecocilioflagellata 33 



Thecoflagellata 33 



Thelysperma filifolium 182 



longipes 184 



trifida (new) 183 



Topaz 149 



Trachelomonas 3S 



Tradescautia Virginica 182 



Trapa microphylla 30 



Tribulus maximus 181, 183 



Triceratops 31 



Trichloris plurifiora 182 



Triodia acuminata 182 



albescens 182 



enigrostoides 182 



Trochilia 34 



Turquoise ... 148 



Uronychia 34 



Utricularia cleistogama (new) 12 

 subulata cleistogama 12 



