322 GEOLOGICAL SURVEY OF CANADA. 



178. TOLMIEA. 



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



Abundant in iich damp woods at Hastings, and Port Haney, Fi-aser 

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



ISO. TIARELLA. 



(8107.) T. laciniata, Hook.. Fl. I., 239; Torr. & Gray, Fl. I., 588. 



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

 Polypetahe, but specimens collected on Vancouver Island two years 

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

 in appearance, lor 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 waj'. On stones in mountain brooks flowing 

 from Mount Ari-owsmith, 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 Horno Lake ; 

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

 iMacoun.) 



192. MYRIOPHYLLUM. 



(3109.) M. alternifolium, DC. 



Julianshaab, Greenland. {Rosenvinge.) Lake Mempbamagog, Que. 

 July, 1SS(J. (Dean, vide Morong.) 



578. CALLITRICHE. 



(3110.) C. Bolanderi, Ilegelm ; 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. 1S89. (Macoun.) 



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

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



