18 



BULLETIN 317, U. S. DEPARTMENT OF AGRICULTURE. 



Table II. — Comparison of )o larch trees in the Whitman National Forest with 

 respect to mistletoe infection. 



[Abbreviations: In columns 14 and 49, increasing degree of infection is shown by the number of cross marks; 

 in columns 26, 31, and 32, B=borers, F=fungi, S=sound, St= stain; in column 36, D=dominant, 1= 

 intermediate, S= suppressed.] 





Tree 

 No. 



Branch burls. 



Branches on 

 burls. 



Highest 

 point of 

 infec- 

 tion. 



Branch 

 witch- 



es'- 

 brooms. 



Length 



of 



spike 



top. 



Average weight 

 of— 



Average diame- 

 ter oi branch. 



Age 



of 



tree. 



Num- 

 ber. 



Aver- 

 age 

 height. 



Liv- 

 ing. 



Origi- 

 nal! y . 



Normal 

 branches. 



Branch 

 witch- 



es'- 

 brooms. 



Sup- 

 porting 

 witch- 



es'- 

 brooms. 



Normal, 



same 



part of 



whorl. 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



Yrs. 

 30 







Feet. 







Feet. 





Feet. 



Pounds. 



Pounds. 



Inches. 



Inches. 



63 



27. 

























63 



42... 











47.0 



7 





2.0 



3.0 



0.5 



0.8 



74 



26. 





" r 







90 



6 .. 











Tip. 















94 



1 . 























96 



9 . 

























96 

 100 



43... 



7 ... 



8 ... 

 10... 

 11... 



2 

 3 



1 

 1 



20.0 

 35.3 

 23.0 

 23.0 



8 

 10 

 3 

 2 

 



10 

 18 

 4 

 2 



57.0 

 80.0 

 77.0 

 59.0 



6 



6 



5 



24 





3.0 



4.5 

 4.5 

 3.2 

 3.2 



1.0 

 1.3 

 1.3 

 1.0 



1.5 



105 



106 

 107 





5.25 

 1.6 



1.5 



. 75 



111 



4 . 

























119 



14 

























122 



25... 

 5 ... 



44... 



S 

 2 



22.4 

 38.0 



23 

 10 



38 

 14 



55.5 

 82.0 



9 

 18 







3.8 

 3.0 



1.0 

 1.0 





123 

 123 





2.0 



.75 



128 

 136 



13... 

 12 



3 



25.3 



15 



7 



8S.5 

 108.0 



3S 

 17 





3.2 



6.0 

 8.0 



1.75 

 1.0 



1.50 



143 



22... 

















145 

 145 



3 ... 

 39... 



5 



56.4 



15 



21 



92.0 



13 





4.5 



8.0 



1.0 



1.75 



147 



19 

























ISO 

 183 

 205 



23... 

 31... 

 15... 



16... 



12 

 6 

 12 



41.9 

 49.1 

 35.9 



37 

 6 

 14 



72 

 20 

 40 



101.0 

 109.0 

 Tip. 



10 

 6 

 (a) 





6.0 

 6.0 



8.5 

 10.0 



(a) 



1.0 

 1.0 



2.10 



2.0 



216 











222 

 224 



17... 

 36... 

 29... 

 35... 

 33... 

 28... 

 34... 

 18... 

 30... 

 37... 

 32... 

 2 ... 

 12... 

 38... 

 20... 

 24... 



5 

 5 

 4 



12 

 9 



11 

 5 

 6 

 5 

 4 

 7 



12 



10 

 6 

 3 



37.4 

 39.2 

 47.0 

 49.0 

 71.2 

 45.5 

 53.0 

 48.3 

 54.4 

 43.0 

 42.0 

 37.5 

 49.3 

 67.4 

 34.6 



9 

 10 

 3 

 5 

 23 

 17 

 3 

 7 

 4 

 3 

 7 

 19 



10 

 2 



21 

 31 

 25 

 58 

 51 

 53 

 28 

 33 

 19 

 21 

 29 

 85 

 46 

 39 

 18 



110.0 

 Tip. 

 Tip. 

 Tip. 

 Tip. 

 Tip. 



Tip. 



11 



1 



(a) 



1 



10 



10 



ii" 



io" 



12 



5.0 



8.0 



.95 



1.8 



225 



( 6 ) 

 ( c ) 





( 6 ) 





226 





227 









229 



( d ) 

 (d) 



CO 



(-0 

 (?) 



( c ) 



(d) 

 (d) 





233 





235 





245 











245 



93.0 

 Tip. 



2 

 1 











248 



25.0 







249 



24 



(A) 

 (0 

 (/) 

 (*) 







249 









252 



TiP- 











253 





42 









271 









566 



40... 























623 



41... 





















1 



I 











a Branch witches'-brooms fallen to ground. 



b Most original branches broken off. 



c One original branch. 



d Original branches broken off. 



e Crown secondary. 



/ Branches fallen;" last stage. 



g Crown secondary, infected. 



h Branches all fallen. 



* Upper crown heavily infected 



j Branches secondary. 



k Branches mostly fallen. 



