FLORA OF BOULDER, COLORADO, 

 AND VICINITY 



Subkingdom L PTERIDOPHYTA. Fern-worts, 



Order i. OPHIOGLOSSALES. 



Family i. OPHIOGLOSSACEAE Presl. Adder's-tongue 

 family. 



1. BOTRYCHIUM Swartz. MOON WORT. 



1. B. Virginiannm (L.) Swartz. VIRGINIA GRAPE-FERN. 

 Forested slopes of Green Mt., above 7000 ft.; very scarce, 



only two or three plants discovered (Daniels, 606).* 



LABRADOR to BRITISH COLUMBIA; FLORIDA to TEXAS and 

 WASHINGTON. 



Order 2. FILICALES. 

 Family 2. POLYPODIACEAE R. Br. Polypody family. 



2. POLYPODIUM L. POLYPODY. 



2. P. hesperium Maxon. WESTERN POLYPODY. 



On a single rock in a canon on the north slope of Green 

 Mt., 7500 ft. (Daniels, 605). 



MONTANA to BRITISH COLUMBIA and WASHINGTON; COLO- 

 RADO to ARIZONA. 



3. DRYOPTEKIS Adans. SHIELD-FERN. 



3. D. Filix-mas (L.) Schott [Aspidium Filix-mas (L.) 

 Swartz]. MALE-FERN. 



Summit of South Boulder Peak; Bear Canon; high canons 

 of Green Mt. ; Boulder Canon near Falls; apparently quite 



* See preface for explanation of numbers. 



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