THE WESTERN YELLOW PINE MISTLETOE. yi 
TaBiE 16.—The effects of mistletoe on the photosynthetic surface of western yellow pine. 
Crown. 
Total LE a ee 
height. | volume. class. 
Feet. | Cubic feet Feet. Feet. 
20. 0 2.50 10.0 155 b.4 
42.0 19. 00 17.0 32.0 x 
26. 0 3-00 8.5 18.5 C 
49.0 22. 50 22. 0 42.0 C 
21.0 | 2.40 12.0 18.0 D 
Length of leaf tufts. 
Lower portion of crown. Center of crown. Upper portion of crown. pag ey, e 
;| Mini- Maxi-| Aver- aa Mini- Maxi-| Aver- “eee Mini-|Maxi-| Aver- 
um.j/mum.| age. | +17, mum fae age. | tufts. aot eur tufts,{mum./mum.| age. 
| | 
In. | Ins |~ in. In. | In In. In. | In. | In: 
1.0; 80] 3.8} 329] 1.0}12.0] 5.7] 234] 0.8] 9.0} 4.2 
2.0 | 13.0 5.4 |2,390 | 2.0/18.0] 8.0 1,151] 1.6] 14.1 6.2 
-d | 12.0 4.0| 183 -6| 13.0] 5.0] 176 -4412.0 4.2 
“1.5 | 17.0 6.7 {1,228 2.0 26.0 7.7| 445] 1.51180 6.1 
2.5 | 180; 8.8) 321 | 2.5 | 28.0] 10.0} 313) 2.1} 19.5 8.5 
Length of leaves. 
Total | 
number Lower portion of crown. | Center of crown. 
Tree No. of tufts 
in entire 
Mean | Mean Mean 
mini- | maxi- | aver- ss Hise i 
mum, | mum.| age. “| mum. 
mm Mm 
In. In. In 
6 3.3 2.6 13, 122 1.7 
5 4.9 3.5} 518,640 2.8 
.0 4.1 3.2 | 109,142 2.3 
1 5.8 4,9 | 365,280 4.4 
3 5.2 4.5 94, 371 4.1 
Length of leaves. 
Upper portion of crown. Mean for entire crown. 
Mean Mean 
are Mean 
mini- maxi- 
mum. | mum. | 2Veraée- 
In In. In. 
7 3.7 2.8 
RT 5.0 5 | 
2.4 4.4 aco 
4.4 6.4 He 
4.3 5.7 a | 
