322 GEOLOGICAL SURVEY OP CANADA. 



178. TOLMIEA. 



(717.) T. Menziesii, Torr. & Gray; Macoun, Cat. I., 155. 



Abundant in rich damp woods at Hastings, and Port Haney, Fraser 

 Valley, B.C., 1889. (Macoun.') 



180. TIARELLA. 



(3107.) T. laciniata, Hook., Fl. I., 239; Ton-. & Gray, Fl. I., 588. 



This species is included in T. trifoliata in Watson's Index of the 

 Polypetalse, but specimens collected on Vancouver Island two years 

 ago satisfy me that they are distinct. They differ as much in habit as 

 in appearance, for while one is at home in the rich woods near the 

 sea, the other is found only on stones in mountain brooks. Besides 

 being laciniate, the leaves are smaller and thinner, of a brighter green, 

 and more delicate in every way. On stones in mountain brooks flowing 

 from Mount Arrowsmith, Vancouver Island. Alt. 2000 feet. 1887. 

 (Macoun.) 



189. SEDUM. 



(3108.) S. Oreganum, Nutt.; Torr. & Gray, Fl. I., 559. 



Abundant on rocks on a small islet at the head of Homo Lake ; 

 also on mounts Mark and Arrowsmith, Vancouver Island, 1887. 

 (Macoun.) 



192. MYRIOPHYLLUM. 



(3109.) M. alternifolium, DC. 



Juliaushaab, Greenland. (Rosenvinge.) Lake Memphamagog, Que. 

 July, 1886. (Dean, vide Morong.) 



578. CALLITRICHE. 



(3110.) C. Bolanderi, Hegel m ; Bot. Calif., II., 77. 



Abundant in muddy pools at Alberni, and along Somas Eiver, on 

 the west coast of Vancouver Island, 1887 ; also at Hastings, Port 

 Moody, and Agassiz, B.C. 1889. (Macoun.) 



(2147.) C. autumnalis, Linn.; Macoun, Cat., III., 530. 

 North of the Saskatchewan. ( Dr. Richardson.) In pools, Bonaparte 



