II 



Aspic nium 



93 acrostichoides Sw. 



(A. thelyptcroidcs Michx.) 



94 angustifolium Michx. 



95 Bradleyi D. C. Raton 



96 cicutariuin Sw. 



97 cyclosorum Rupr. 



98 dentatuin L. 



99 ebenoides R. R. Scott 



100 Filix-foemina (L.) Bernh. 



101 fontanum (L.) Bernh. 



1 02 firmnni Knnze 



103 Glenniei Baker 



104 monanthemum L. 



105 montannm Willd. 



106 myriophylhnn Mett. 



107 parvulum Mart. & Gal. 



108 pinnatifidnm Nntt. 



109 platy neuron (L.) Oakes 



(A. ebeneum Ait.) 

 no Rnta-mnraria L. 

 in septentrionale (L. Hoffm. 



112 serratum L. 



113 Trichomanes L. 



114 vespertimun Maxon 



115 viride Hnds. 



Blechiiviiii 



116 sernilatnm Rich. 



Struthiopteris 



(Lomaria) 



117 spicant (L.) Scop. 



Woodwarclia 



118 areolata (L.) Moore 



(}. angustifolia Smith) 



119 radicans (L.) Sm. 



1 20 Virginica (L.) Sm. 



(iymiiopteris 



( Gymnogramma] 



121 hispida (Mett.) Underw. 



( Gymnogramma Eliretibcrgiatia ) 



122 triangnlaris (Kaulf.) Underw. 



Pellaea 



123 andromedaefolia (Kaulf.) Fee 



124 aspera (Hook.) Baker 



125 atropurpurea (L.) Link 



126 brachyptera (Moore) Baker 



127 Breweri D. C. Katon 



128 Bridgesii Hook. 



129 densa (Brack.) Hook. 



130 flexuosa (Kaulf.) Link 



131 intermedia Mett. 



132 marginata (Hook.) Baker 



133 occidentalis (R. Nelson) Rydb. 



134 ornithopus Hook. 



135 pulchella (Mart. & Gal.) Fee. 



136 ternifolia (Cav.) Link 



137 Wrightiana Hook. 



Notholaeiia 



138 Aschenborniana Klotzsch. 



139 Candida (Mart. & Gal.) Hook. 



140 cretacea Liebm. 



141 dealbata Pursh 



142 Fendleri Kunze 



143 ferruginea (Desv.) Hook. 



144 Grayi Davenport 



145 Hookeri D. C. Raton 



146 Lemmoni D. C. Raton 



147 Newberryi D. C. Raton 



148 nivea Desv. 



149 Parryi D. C. Raton 



150 Schaffneri (Fourn.) Underw. 



151 sinuata (Sw.) Kaulf. 



152 tenera Gillies 



Cheilaiithes 



153 Alabamensis Kunze 



154 argentea (Gmel.) Kunze 



155 Californica (Nutt.) Mett. 



156 Cleveland! D. C. Raton 



157 Cooperae D. C. Raton 



158 Ratoni Davenport 



159 Feei Moore 



(C. lamtginosa, also C. gracilis) 



1 60 Fendleri Hook. 



161 fibrillosa Davenport 



162 gracillima D. C. Raton 



163 lanosa (Michx.) Watt 



(C. vcstita Sw.) 



164 lendigera (Cav.) Sw. 



165 leucopoda Link 



1 66 Lindheimeri Hook. 



167 microphylla Sw. 



