238 Rhodora 
Dipsacaceae, 17, 232. 
Dipsacus, 17; sylvestris, 17. 
Ditrichum pallidum, 219. 
Docidium, 206; baculum, 206. 
Double-headed Generic Names, 229. 
Draba verna, 199. 
Dryas Drummondii, 125. 
Dryopteris, 230. 
Dwarf Antennarias of northeastern 
America, 95. 
Dyssodia, 85; tenuiloba, 85. 
Eastern American Representatives 
of Arnica alpina, 103; New York, 
Notes of some Plants of, 221. 
Eaton, D. C., 52. 
Echinacea purpurea, 82. 
Echinocystis, 18; lobata,18. 
Echinopanax, 124; horridulum, 123. 
Echinops, 86; sphaerocephalus, 86. 
Echinospermum — deflexum, var. 
americanum, 124. 
Eclipta, 86; alba, 86. 
Ectocarpus, 189, 190; confervoides, 
191, 213; var. hiemalis, 213; fas- 
eiculatus, 191, 213; siliculosus, 
213; tomentosus, 213. 
Eel grass, 184. 190. 
Elachistea, 189, 190; fucicola, 213. 
Elakatothrix gelatinosa, 211. 
Elatine americana, 221, 222; mini- 
ma, 37. 
Eleocharis diandra, 37, 222; ob- 
tusa, 223; palustris, 223; tuber- 
culosa 37; in New Hampshire, 37. 
Elymus virginicus, 222. 
Empetrum atropurpureum, 93; 
Eamesii, 93; nigrum, 93; rubrum, 
Empusa, 218. 
Endoderma Wittrockii, 213. 
Enteromorpha. 190; clathrata, 191; 
compressa, 213; intestinalis, 213, 
215; Linza, 191, 213; minima, 
213; plumosa, 213. 
Epigaea repens, 175. 
Epilobieae, 48. 
Epilobium, 48; under estuarine 
Conditions, An, 48; glandulosum, 
var. adenocaulon 48; var. 
ecomosum, 48; hirsutum, 48. 
Erechtites, 86; hieracifolia, 86, 228; 
var. intermedia, 86; var. prae- 
alta, 86 
Erigeron, 86; annuus, 86; cana- 
dense, 228; canadensis, 86. 186; 
philadelphicus, 86; pulchellus, 86; 
pusillus, 86; ramosus, 86; var. 
[DECEMBER 
discoideus, 86; var. septentriona- 
lis, 87. 
Eriophorum virginicum, f. album, 
2; var. album, 2 
Errata, 232. 
Erucastrum Pollichii, 22; in West 
Virginia, 22. 
Erysiphe cichoracearum, 218; com- 
munis, 218. 
Erythrotrichia ceramicola, 214. 
Euastrum, 204, 206; ansatum, 206; 
bidentatum, 206; binale, 206; f. 
Gutwinskii, 206; var. retusum, 
206; crassum, 206; evolutum, 
var. integrius, 207; gemmatum, 
207; insulare, 207; oblongum, 
207; pictum, 207; sinuosum, var. 
reductum, 207; verrucosum, 207. 
Eulespedeza (sect. Lespedeza), 33. 
Eupatorium, 87; aromaticum, 87; 
faleatum 87; perfoliatum, 87; f. 
purpureum, 87; var. truncatum, 
87; pubescens, 87; purpureum, 87; 
rotundifolium, $87; sessilifolium, 
87; urticaefolium. 87; verbenae- 
folium, 87; verticillatum, 87. 
Euphorbia polygonifolia, 176 
Eupodiscus Argus, 193, 195, 216. 
Euthamia tenuifolia, 228. 
Exoascus Pruni, 218. 
Extensions of Range and a New 
Variety in Salix, 135. 
Fagaceae. 224. 
Farwell, O. A., The correct Name 
for the Spearmint, 19. 
Fassett, N. C., An Epilobium under 
estuarine Conditions, 48; A new 
Variety of Bidens heterodoxa, 
177; A Study of the Genus Ziza- 
nia, 153. 
Fatsia, 124; horrida, 123. 
Fern Herbarium, Another Daven- 
port, 49. 
Fernald, M. L., The Dwarf Anten- 
narias of Northeastern America, 
95; The Eastern American Repre- 
sentatives of Arnica alpina, 103; 
A Flora of Springfield, Mass., 179; 
Juneus triglumis and its Ameri- 
can Representative, 201; Myrio- 
phyllum magdalenense, a Cor- 
rection, 198; New or recently 
restudied Plants of Eastern 
America, 122; Polystichum mohr- 
ioides and some other Sub- 
antarctic or Andean Plants in the 
Northern Hemisphere, 89; Some 
