INDEX 57 
Polypodium (continued). 
XXXVil. 
iubedd orme, XXXVii. 179, 280. 
i. 178. 
molle, xx 
reper canna xxvii 179. 
olium, 1. 279. 
pep eae rapa 182. 
pectinatum, XXXvVil 
phyllitidis, xxvii. 178. 
ranereesaiaee xxxvil. 179. 
plantagine xxxvil. 184. 
polypodi oides, xxx 
reticulatum, xxxvii. 183. 
rivulare, vil. 185 
saccatum, xxxvii. 179 
salicif , Xxxvii. 17 
serrulatum, xxxvii. 1 
Polystichum, xxxv. 174. 
Braunii, xxxv. 154; xl. 116. 
Thies XXXV. 158, 190; xl. 116, 
aif; 
scopulinum, xxxv. 158, 167, 174, 
88 
Populus ba! ifera, xl. 138, 147. 
grandidentata, xl. 141, 148. 
tremuloides, xl. 117. 
acy Ria xxxvii. 268. 
ec ns, xlii. 508. 
ellipticum, 509. 
. ruderale, xlii. 509 
Holwayanum, xxviii xxviii. 48. pee 
linifolium, var. brevifolium, xlii. 
XXXVii. 
iformis, xl. 138. 
ier 134, 136, 140, 148, 
praelongus, f. elegans, xl. 117. 
pubescens, XXXIV. 48, 49; XXXVii. 
3 
Potentilla fruticosa, var. tenuifolia, x1. 
maculata, xl. 127, 137. 
162; xl. 127. 
nsiana, XXXVv 
tride sedge XXXV. 156, 162, 169. 
Prenanthes, xx 
altissima, A. 141, 148. 
xxxv. 156, 164, 166. 
racemosa, xl. 148 
stricta, xlii. 514. 
trifoliolata, var. nana, xxxv. 164, 
169, 170, 91. 
a farino var. — 
BB veg 163 Ales 
’ 
Psaca i xii. 5 
Pseudo-helianthus, xlv. 521. 
XXXVI1l _ 181. 
Peeridophita, agai 152, 157, 187; 
Pteris ne os ay var. caudata, xxxvii. 181. 
me ngage 181. 
Puceinellia, xIvi. 1-5. 
airoides ,xlvi. 6, 16, 17, 23. 
a, 
angustata, xl 4 19, 21, 23. 
arctica, xlvi. 4 
Borreri 
