FLORA OF BOULDER, COLORADO, 

 AND VICINITY 



Subkingdom I. PTERIDOPHYTA. Fern-worts. 



Order i. OPHIOGLOSSALES. 



Family i. OPHIOGLOSSACEAE Presl. Adder's-tongue 

 family. 



1. BOTRYCHTUM Swartz. Moon wort. 



i. B. Virginianum (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. DRYOPTERIS 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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