ADDENDA, 



On I'iise 9. 



Alter Eqnisetnm palustro L. insert K. pratense Elirli. Locally dislributed, Vic- 

 toria, Alberni, Cameron Lake. V.I. 



After Lycopodinm sitchense Itnpr. ins-ert L. sabin.iiefoliuni V>'ill(l. Monnt Arrow- 

 smith, V.L, Macoun. 



On p;i^e 11. 



After Potamogeton alpinus P.alhis ins;^rt P. am])lifolins Tuckerm. Victoria. V.L. 

 MoCDiin. 



On page 13. 



Insert Agrostis exarata Triii. in ]>lace of A. exarata x nlha. 



After Agrostis exarata Trln. ins^-rt A. foliosa Vasey. Macoun. No. 3013G. 



Omit Agro.stis inflata Selirlbner, which is a synonym of A. glomerata (Presl.) 



Kmith. 

 Insert Agrostis Ross.n? Vasey for A. varians Trin. 

 After Agrostis stolonifera L. omit var. maritima. 

 Omit Agrostis vulgaris With., a variety of A. alba L. 

 AIoi>ecuriis aristnlatus Torr.. a variety of A. geniculatus. 



On page 14. 



Bromus commiitatus Schratl. iutrodnocd. 



After Bromus eximius (Shear.) Piiier insert B. Hookerianus Timrber. Genor- 

 ally distributed, southern half of Vancouver Island. 



Ou page 20. 



After Polypogon littoralis (With) Smith insert P. Monspeliensis (L.) Desf. 

 Macoun, both of which are introduced. 



Ou page 23. 



Omit Carex leiocarpa C. A. Meyer, a synonym of C. anthoxnntha Presl. 



On page 26. 



Omit Juncus nodosns L. 



On page 36. 



Cerastium viscosum introduced. 



Ou page 42, 



Omit Brassica sinapistnun Boiss.. a synonym of B. arvensis (L.) Ktze. 



On page 46. 



After Sedum stenopetalum Pursh. omit Queen Charlotte Islands. 



On page 49 



Potentilla albida Rydb. introduced. 



Ou page 54. 



Vicia lathyroides L. introduced. 



On page 55. 



After Euphorbia hirsuta (Torr.) Wiegand insert E. Lathyrus L. Victoria, V.L 



