^ 
1915] 
Dulichium arundinaceum, 150, 151. 
Dwarf Mistletoe, 65. 
East, E. M., The mutation Factor 
in Evolution; with particular 
Reference to Oenothera, 235. 
Echinochloa crusgalli, 105, 106, 209, 
212, 225; muricata, 106, 209, 
212; Walteri. 
Ectocarpus Mitchellae, 91, 92; vires- 
cens, 92. 
Eleocharis acicularis, 142, 151; palus- 
tris, 150, 151, var. vigens, 150; 
tenuis, 151. 
Elymus ampliculmis, 99; arenarius, 
98-103, 146, 147, and its American 
Representatives, 98, forma com- 
positus, 102, var. compositus, 102, 
103, var. villosus, 99-103; capi- 
tatus, 99, 100; dives, 99; gigan- 
teus, 98, 103; mexicanus, 98; 
mollis, 99-101; sabulosus, 98; 
strigatus, 102, 103; villosissimus, 
100. 
Elytraria caroliniensis, 131, 137, var. 
angustifolia, 131, 137; virgata, 
/131, 137, var. angustifolia, 131, 137. 
Emex, 171; spinosa, 171. 
Empetrum nigrum, 148, 149. 
Endoderma strangulans, 91. 
Enteromorpha intestinalis, 91; pro- 
lifera, 91. 
Epilobium adenocaulon, 151, 217, 
var. perplexans, 154; angustifo- 
lium, 154, 217; coloratum, 217; 
densum, 151. 
Equisetum arvense, 150; scirpoides, 
64; sylvaticum, 152. 
Eragrostis capillaris, 227; Frankii, 
227 
Erechtites hieracifolia, 209, 218, 219, ` 
225. 
Erigeron canadensis, 36, 218, 225; hys- 
sopifolius, 18, var. villicaulis, 17; 
ramosus, 36. 
Eriocaulon septangulare, 68. 
Eriophorum angustifolium, 149, 151; 
callitrix, 149; tenellum, 149; vir- 
ginicum, 149. 
Erodium cicutarium, 35, 37. 
Errata, 238. 
Eryngium, 132. 
Eupatorium perfoliatum, 151; pur- 
pureum, var. maculatum, 151, 218. - 
Euphorbia hirsuta, 30; humistrata, 
30, 227; maculata, 227. 
Euphrasia, 181-183, 194; albimon- 
tana, 185; americana, 148, 154, 
182,183, 185, 196—198, 200, 201, var. 
Index 
243 
canadensis, 183, 195; arctica, 182- 
184, 190, 192, 194, 196; bottnica, 
187; canadensis, 181-184, 195- 
.198, 201; disjuncta, 182, 184, 
190, 192, 194; hirtella, 183, 190, 
193; hudsoniana, 184, 194, 197; 
in North America, The Genus, 
181; latifolia, 181-183, 190, 192- 
194; mollis, 182-184, 190; nemo- 
rosa, 196, 197, 201; Oakesii, 181- 
183, 185, 186, forma lilacina, 185; 
officinalis, 181, 182, 185, 188, 190, 
195, 199, 200, y alpestris, b. 
arctica, 193, officinalis alpina, 182, 
var. hyperborea, 193, 8 latifolia, 
193, var. mollis, 190, var. tatarica, 
182, 185, 193, 198; orbicularis, 185; 
purpurea, 182, 184, 186, 189, 190, 
forma candida, 187, var. Farlowii, 
184, 189, 190, Farlowii, forma 
lodantha, 189, var. Randii, 184, 
188-190, var. Randii, forma albi- 
flora, 188; pusilla, 182, 185; Ran- 
dii 148, 183, 188, var. Farlowii, 
183, 189; Rostkoviana, 183; salis- 
burgensis, 195; stricta, 182, 184, 
196-198, 201, var. tatarica, 184, 
194, 197, 198; tatarica, 193, 198; 
Williamsii, 183-185, var. vestita, 
184, 186. 
Eusabbatia, 55. 
Euthamia camporum, 12; floribunda, 
12. 
Euthora cristata, 94. 
Evans, A. W., Notes on New England 
Hepaticae,— XII, 107. 
Extensions of Range, 227. 
Eyebright, 181, 183. 
Fagopyrum, 172; esculentum, 172; 
tataricum, 172. 
Farwell, O. A., The Hemlock Spruce, 
164; Range Extension of Ceano- 
thus sanguineus, 229. 
Fellows, D. W., The Josselyn Botani- 
cal Society of Maine, 128; The 
twenty-first annual Meeting of the 
Josselyn Botanical Society of 
Maine, 203. 
Fern, The American Ostrich, 161; 
Ostrich, 161. 
Fernald, M. L., An albino Viola ros- 
trata, 180; Altitudinal Limits in 
Connecticut, a Correction, $88; 
The American Ostrich Fern, 161; 
The American Variation of Lyco- 
podium annotinum, 123; Botry- 
chium angustisegmentum (Pease & 
Moore), n. comb., 87; The Char- 
