Chrysanthemum *Leucanthemzmz L. var. pirmatifz'dum Lecoq. e1 
     
     Lamotte.—Ox-eye Daisy. 
     
     *Parthenium (L.) Bernh—Feverfew. (Groh). 
     
    
   
   
    
     .Tanacetum *vulgare L.—Common Tansy. 
     
     _C0tula coronopz'folia L.—Mud~‘disc. (Holman)- 
     
    
   
   
    
     Artemisia *vulgai’is L.—Common Mugwort. (Groh). 
     
     *Stelleritma Bess—Beach Wormwood. (Uroh). 
     
     biennis W z'lld.——Biennial Wormwood. (Groh). 
     
     *Absinthium L.—VVormwood. (Groh). 
     
     *gnaphalodcs Nutt.—Prairie Wormwood. (Groh). 
     
     Tussilago * Farfara L—Coltsfoot. (R. R. Hurst) Extirgated 1940, 
     
     Pefasz'tcs palmatux (Ait.) Gray.—Sweet Coltsfoot. 
     
     Senecio *vulgar'is L.—C0mmon Groundsel. 
     
     *wiscoszts L.—Viscous. or Fetid Groundsel. (>(2roh). 
     
     *Mcobarza L—Tansy Ragwort. 
     
     aurcm L.—Golden Ragworr. 
     
     Balsamitae Muhl.—Balsam Ragwort. 
     
     *sylvaticm L.——VVood Groundsel. (B. Hurst)- 
     
     (First specimen in National Herbarium, Ottawa, sent from 
     
     P. E. I., 1926.) 
     
     Antium *minus Bernh.———Common Burdock (Groh). 
     
     Cimiym *lanceolamm (L.) HilI.—~Bull Thistle. 
     
     discolor (Muhl.) Spreng.—Field Thistle. (Rain). 
     
     muticfum MichX—Swamp Thistle. (Groh). 
     
     *arvense (L.) Scop.—~Canada Thistle. 
     
     Centmmea *nigra L.—Knapweed. 
     
     Lapxaua *communis L.——Nipplewort. 
     
    
   
   
    
     Amoscris minima (L.) Dumort.—Lamb Succor-y. (R. R. Hurst). 
     
     C ic/wrium *Initybus L.~Chicor_v. 
     
    

    
     Leontodon *autumnalis L.—Fall Dandelion. 
     
    

    
     Taraxacum *officinale Weber—Dandelion. 
     
    
   
   
    
     Sanclms *oleracem L.——Common Sow Thistle. 
     
     asper L.—Spiny Sow Thistle. (Groh) 
     
     *arvmsis L—Field Sow Thistle. 
     
     (In 1926 Mr. Groh found the pest of' western grain fields, 
     
    
   
   
    
     Sam/ms arvenzsz's glabrescem Gunth, abundant in 
     
     P. E. I.) 
     
    
   
   
    
     Luctuca canadensix L.—Wild Lettuce. 
     
     integrifolia. Bigel.—Simple—leaved Lettuce. 
     
     hirsuta Muhl.—Hairy Lettuce. 
     
     spicata (Lani) Hitchc.—Tall Blue Lettuce. 
     
    
   
   
    
     Prenamhes alba L.——Rattlesnake—root. 
     
     trifoliolatq, (Cass) Ferna‘ld.—Li0n’s—foot, (Bain)_ 
     
     altisstma» L.—Tall White Lettuce. (St. Campbell). 
     
    
   
   
    
     (24) 
     
    
   
   
    
     -_____.___.~_-~’-—-———-—————-————~—.—_______*7