134 



ceded by an asterisk are not included in the flora by Piper and 

 Beattic* covering this part of Washington. 



Of the 96 weeds reported from Whatcom County, Washing- 

 ton, five are native species. The rest are naturahzed or adven- 

 tive, mostly from Europe. Among the 46 widespread, or at 

 least locally common, naturalized weeds, 33 were already so by 

 1905, eight more species became so by 1910; three more by 

 1919, and two more by 1929. Among the 42 uncommon or 

 very local weeds, eight species were known to occur in the coun- 

 ty before 1905; 12 more by 1910; seven more by 1919; and 15 

 more by 1929. Among the earlier weeds brought into Whatcom 

 County the most noxious are the Canada thistle, Cirsium ar- 

 vensis (L.) Scop, and the mesquite or velvet grass, Ginnania 

 lanata (L.) Hub., and several mustards, Brassica spp. Among 

 the most noxious of the recently introduced weeds are the tall 

 field buttercup. Ranunculus acris L., and the winter cress, 

 Barharea vulgaris R. Br. Both of these species are already wide- 

 spread and in the future will, in all probability, become very 

 common on the heavier soils and lowlands. The quack grass, 

 Agropyron repens (L.) Beauv. and the perennial sow thistle, 

 Sonchus arvensis L., the worst weeds in the northeastern and 

 north central States, respectively, have become well established 

 in Whatcom County. It remains for the future to reveal to 

 what extent these pests will trouble the farmers of Whatcom 

 County. 



Cornell University 



Stations for the Southern "White Cedar 



In a talk before the club on May 6th Mr. Torrey spoke of 

 several unusual stands of the Southern White Cedar. Mr. 

 Russell B. Evans reports another location, a swamp west and 

 north west of Franklin Lake, N.J. The swamp occupies a 

 glacial kettle hole. Most of the trees in the swamp are dead, 

 dozens of them are up to a foot in diameter. Some living trees 

 are near the outlet and some dead ones have been dragged out, 

 barked and cut up, as the waste on the knolls west and south 

 of the swamp indicates. 



A census of the stands of Chamaecyparis thyoides remote 



^ Piper, C. V. and R. K. Beattie. Flora of the Northwest Coast. 1915. 



