igo6] Contributions to Canadian Botany. 135 



CONTRIBUTIONS TO CANADIAN BOTANY.* 



By James M. Macoun, Assistant Naturalist, Geological Survey of Canada. 



XVII. 



Since the last of these papers was published a great many- 

 species have been added to the list of those known to occur in 

 Canada ; the distribution of others has been greatly extended and 

 a large number of notes worthy of publication have accumulated 

 in our herbarium. Much of this material will be utilized in publi- 

 cations which will be issued from this Department at an early date 

 but it is hoped to print from time to time in The Ottawa 

 Naturalist records that might not find a place elsewhere. Some 

 of these records have appeared in other publications, but as these 

 notes are intended primarily for Canadian workers not all of whom 

 have access to current botanical literature, and in nearly every 

 case new information as to distribution has been added, it has 

 seemed best to make the record as complete as possible by includ- 

 ing some matter that has been published elsewhere. 



DlCKSONIA PILOSIUSCULA, Willd. 



In sandy woods, Courtland, Norfolk Co., Ont., 1901. 

 [John Macoun.) Rare in western Ontario. 



Asplenium Ruta-muraria, L. 



On limestone rocks, north end of Manitoulin Island, 

 Georgian Bay, Ont. Collected by Dr. Scott of Southampton, 

 in 1 go 1. New to Canada. 



Adiantum pedatum, L. , var. Aleuticum, Ruprecht. 



A. pedalum, Cat. Can. PI., II : 263 in part. 



Represented in our herbarium by four sheets of speci- 

 mens, all collected on Mt. Albert in the Shickshocks, Gasp, 

 Que. Two of these sheets were collected by Prof. John 

 Macoun in 1882, and two by Messrs. Collins and Fernald in 



I905- 



*Published by permission of the Direclor of the Geological Survey of 

 Canada. 



