1975] 
Erickson — Papilio polyxenes 
1 17 
Table I. Continued. 
.1 
Plant species 
Mean percent 
dry material 
in 
± SE 
leaves 
1 .2 
Mean calories 
per mill igram 
dry weight of 
leaf material 
± SE 1 , 3 
Mean percent 
of nitrogen 
in leaf material 
± SE 1 ,- 
Anqelica atropurpurea 
25.22 
+ 
0.41 
4.25 
± 
0.06 
5.12 
± 
0.09 
Angel ica 
N 
= 
25 
Anqelica triquinata 
18.49 
± 
0.65 
4.27 
± 
0.19 
4.56 
± 
0.33 
Angel ica 
N 
= 
36 
Cicuta bulbifera 
18.17 
± 
0.42 
4.15 
± 
0.17 
3.64 
± 
0.08 
Bulb bearing water hemlock 
N 
= 
17 
Cicuta maculata 
19.20 
•+ 
0.62 
4.19 
± 
0.19 
3.67 
± 
0.25 
Water hemlock 
N 
= 
27 
Coelopleurum lucidum 
18.23 
± 
0.66 
4.13 
+ 
0.23 
3.21 
± 
0.07 
N 
= 
42 
Coni urn macu latum 
20.98 
+ 
0.55 
4.31 
± 
0.21 
3.44 
± 
0.15 
Poison hemlock 
N 
= 
53 
Cryptotaenia canadensis 
16.96 
+ 
0.50 
4.07 
± 
0. 1 1 
4.25 
± 
0.29 
Honewort 
N 
= 
16 
Daucus carota 
19.73 
± 
0.36 
3.95 
± 
0.21 
3.04 
± 
0.06 
Carrot 
N 
= 
24 
Heracleum maximum 
24.66 
+ 
0.69 
3.97 
± 
0.1 1 
4.71 
± 
0. 1 O' 
Cow parsnip 
N 
= 
24 
Herac 1 eum sphondy 1 i urn 
23.67 
± 
0.72 
4.10 
± 
0.23 
3.61 
± 
0.27 
Cow parsnip 
N 
= 
34 
Imperatoria ostruthium 
21.99 
± 
0.96 
4. 13 
+ 
0.17 
4.26 
± 
0.31 
Masterwort 
N 
= 
24 
Levisticum officinale 
20.48 
+ 
0.23 
3.98 
+ 
0.27 
3.70 
± 
0. 16. 
Lovage 
N 
= 
26 
Pastinaca sativa 
19.34 
± 
0.36 
4.19 
± 
0.23 
5.12 
± 
0.07 
Parsnip 
N 
= 
20 
Pseudotaen id ia montana 
31.41 
+ 
0.49 
4.01 
± 
0. 16 
1.54 
± 
0.07 
Mountain pimpernel 
N 
= 
23 
Si urn suave 
7.38 
+ 
0.21 
4.06 
± 
0.31 
3.80 
± 
0.13 
Water parsnip 
N 
= 
27 
