Additions to the Flora of Washington. 131 



1211. Tsuga Canadensis Carr. 



Accotink Creek, Virginia. William Hunter. 



FILIGE8. 



1216. Pellaea atropurpurea Link. 



Causeway between Analostan Island and the Virginia shore. 

 E. S. Burgess. Rock Creek, between Pierce's Mill and Broad 

 Run. G. W. Oliver. 



1219. Woodwardia angustifolia Sm. 



Piney Branch woods. Near the Reform School. Lester F. 

 Ward and the author. 



1223. Aspleiiium angustifolium Michx. 



Above Blagden's Mill, on the west bank of Rock Creek. G. 

 W. Oliver. 



1226. Camptosurus rhizophyllus Link. 

 Mount Vernon. William Hunter. 



1239. Dicksonia pilosiuscula Willd. 

 Abundant along Rock Creek. Lester F. Ward and the author. 



1245. Botrychium ternatum Swz., var. dissectum Millde. 



I 



In the wood near Aqueduct Bridge, on the Virginia shore. 

 The author. 



1247. Ophioglossum vulgatum L. 



Very plentiful in woods near Bennings. P. Gauges. A single 

 specimen collected near the Reform School. Lester F. Ward 

 and the author. 



L YCOPODIA CE^E. 



x 1248/y. Lycopodium alopecuroides L. 

 Sphagnum swamp, Henson's Creek. G. W. Oliver. 



1248c. Lycopodium annotinum L. 

 In the same locality as the preceding. G. W. Oliver. 



17-BiOL. Soc., WASH., VOL. VII, 1892. 



