29 



Table 1. Resin and rubber content of plants determined bj' eztraetlon with acetone for six honrs and followed bf extraction with 

 bensene for three hours - Continued. 



Scientific nane 



Localltr 



Date 

 collected 



Collector 



Lab. 

 No. 



Part 

 analyzed 



Acetone 



extract , 



% dzy «t« 



Impatlens lilflora L. 

 Inula helsnlua L. 



Ipoaoea pandurata C.F.W. Hejrer 

 Lactuea biennis (Moench) Pern. 



Laetnea canadensis L. 



Lactuea canadensis L. Tar. integrlfolla 

 (Blgel.) Grajr 



Lactuea canadensis L. Tar. latifolia 0. 

 Euntie 



Lactuea canadensis L. Tar. typica Wieg. 



Laetnea nuralis L. 



Lactuea pulchella (Pursh) DC. 



Ottawa, Ont. 

 Cape Breton, N.S. 

 Ottawa, Cnt. 



Morpeth, Ctat. 

 Vaneourer, B.C. 



New WestDilnster, B.C. 



Harwich Twp., Ont. 

 Ottawa, Ont. 



Laseelles, Que. 

 Brebeuf, Que. 

 Centreville, N.S. 

 Margaret's Bay, N.S. 



Bustend, Sask. 

 Preston, Ont. 

 Ottawa, (tat. 



Prederleton, N.B. 



Howard Ttop., Ctat. 



Kettle Point, Qst. 



Kettle Point, Ont. 

 Harwich Twp., Ctat. 

 Kentville, N.S. 

 Ottawa, Ctat. 

 Pt. Sask., Alta. 

 Haeleod, Alta. 

 EdBOntan, Alta. 

 Katspwa Beach, Sask. 

 Saskatoon, Sask. 



20/7/42 



20/8/42 



5/8/42 



30/7/42 



26/8/42 



?/8/42 



7/9/42 



7A0/42 



22/8/42 



8/9/43 



8/9/43 



13/9/43 



8/7/42 



3/8/42 



6/7/42 



13/8/42 



13/8/42 



7/7/42 



2/9/42 



26/8/43 



8/9/43 



29/6/42 



5/9/42 

 8/8/42 



8/8/42 

 22/8/42 



3/7/42 



5/8/42 

 27/6/42 



6/7/42 

 20/8/42 



1/7/42 

 25/7/42 



H. Groh 



J.P. HacMlllan 



H.A. Senn 



C.C. Bell 

 J. Davidson 

 N. Boldt 

 W.L. Hartln 



W.L, Martin 

 C.C. Bell 

 H.N. Zlnck 

 H.H. Zinek 

 H.N. Zlnck 

 H. Groh 

 L. Coupal 

 R.H. Lewis 

 M.S. Brown 

 M.S. Brown 

 H.S. Jones 

 H. Groh 

 H.N. Zlnck 

 H.N. Zlnck 



H.B. Hoore, 

 S.F. Clarkson, 

 J.L. Howatt 



C.C. Bell 



H. Millar 



H. Hlllar 

 C.C. Bell 

 R.H. Lewis 

 H. Qroh 

 G.H. Turner 

 R.H. Dixon 

 H.W. Connack 

 L.T. Carmichael 

 B.C. Russell 



316 

 706 

 471 



472 

 490 

 177 

 654 

 887 

 888 

 886 



950 



769 



1836 



1837 



1850 



196 



459 



249 



818 



820 



284 



774 



1803 



1845A 



18451 



848 



838 



605 



604 

 766 

 245 

 480 

 226 

 307 

 723 

 274 

 525 



whole 



whole 



leaves, 

 flowers 



stems 



shoots 



whole 



whole 



leaves 



stems 



flower 

 heads 



idiole 



shoots 



leaves 



leaves 



leaves 



idiole 



whole 



whole 



whole 



whole 



vtiole 



whole 



leaves 



leaves 



stems, 

 flowers 



whole 



whole 



shoots 



shoots 



shoots 



shoots 



whole 



whole 



whole 



whole 



tAole 



shoots 



8.5 



4.0 



10.5 



6.7 

 10.1 



5.3 



6.9 

 10.7 



6.5 

 U.1 



4.9 



9.3 



8.9 



10.2 



10.4 



U.2 



10.0 



9.0 



8.7 



JiL. 



13.2 

 7.6 



U.2 

 9.8 

 6.8 



5.2 



7.1 

 9.3 



8.8 

 U.4 

 11.3 



6.9 

 12.6 

 10.6 



9.0 

 12.5 

 10.7 



