— 30 — 



31. ScAPANiA PALUDICOLA Kaalaas & K. Mull. In peat bogs. St. Hubert, 

 Brother Victorin i, 22, August, 1909. 



32. ScAPANiA SUBALPINA (Nees) Dumort. On rocks. Table-top Mount- 

 ain, /. F. Collins 4487, August, 1906. 



33. ScAPANiA UMBROSA (Schrad.) Dumort. On rotten logs. Tadousac, 

 A. W. E. 24, July, IQ15. 



34. PoRELLA PINNATA L. In running water. Montmorency River, J. 

 Macoun 7, June, 1905. 



35. Frullania Oakesiana Aust. On trees and rocks. Seal Cove River, 

 Douglastown, J. F. Collins 3797, August, 1904; Tadousac, A. W. E. 74, 75. 



If the four doubtful species in Macoun's Catalogue are excluded it will be 

 seen that all the Quebec species occur also in New England, with the exception 

 of the following three: Sphenolohus politus, S. saxicola, and Frullania Bolanderi. 

 It is probable, in fact, that most of the other species now known from Maine, 

 New Hampshire, and Vermont await discovery m Quebec. Whether the more 

 northern types, known from Arctic America, Yukon, and Alaska, are likewise 

 to be expected is, of course, uncertain. The occurrence of such species as Gym- 

 nomitrium concinnatum and G. corallioides at Bic, almost at the sea level, is per- 

 haps an indication that other alpine and artic forms may reach the shores of the 

 St. Lawrence nearer its mouth, but there is no definite evidence as yet to support 

 this idea. According to our present information no exclusively arctic types are 

 known from Quebec, and its hepatic flora might be described as north temperate 

 in character. 



When compared with the flora of Europe the only distinctive elements are 

 the five species of Frullania, F. Asagrayana, F. Bolanderi, F. eboracensis, F. 

 Oakesiana, and F. Selwyniana; and the known range of F. Bolanderi, as has 

 recently been noted, stretches across North America to the Pacific Coast with 

 an extension to the island of Saghalin in eastern Asia. Possibly the high ratio 

 of endemic species in Frullania is associated with the fact that the genus is ap- 

 parently tropical in origin and comparatively modern. 



Sheffield Scientific School, Yale University 



