50 



442 Pteris L. 



J^" 1 aquilina L. Common Brake. 

 2 atropurpurea L. Rock Brake. 



443 Stmthiopteris W. ' 



1 pennsylvanica W. Onoclea nodulosa Schk. Brake, Fern. 



444 Woodsia R. Brown. 



■% 1 ilvensis E. Br. 



445 Woodvvardia Smith. 



1 angustifolia Sm. Kidney Fern. Deeriield. 



ORDER II. 



Musci. Mosses. 



446 Anictangium Hedw. 



1 filiforme Hedw. Hedwigia filiformis P. de Beauv. 



447 Anomodon Hooker and Taylor. 



1 viticulosum H. and T. Neckera viticulosa Hedw. 



448 Arrhenopterum Hed. 



1 heterostichum Hed. Bryum arrhenopterum Dill. _ 



449 Bartramia Hedw. 



1 crispa Sw.? 



2 fontana Hooker. 



3 gracilis Sm. oederi Schwaegrichen. 



4 pomiformis Hedw. 



450 Bryum L. 



1 androgynum Hedw. 



2 argenteum L. 



3 caespilicium L. 



4 cuspidatum Schreb. 



5 nutans Schreb. Webera nutans Hedw. 



6 punctatum Schreb. 



7 roseum Schreb. 



8 triquetrum Turner. Meesia longiseta Hed. 



9 turbinatum Sw. 



451 Buxbaumia L. 



1 aphylla L. 



