1918] Index 
16, var. pastorum, 16; monogyna, 
17, 105; Oxyacantha, 17; phaeno- 
pyrum, 17; pruinosa, 17, var. con- 
juncta, 17, forma dissona, 17; 
rotundifolia, 17, 105, var. Faxoni, 
17; submollis, 17; succulenta, 17. 
Crotalaria, 166; sagittalis, 166. 
Cuscuta compacta, 115. 
Cyperaceae, 139, 189, 190; An inter- 
generic Hybrid in the, 189. 
Cyperus, 189, 190; amentaceus, 25; 
dentatus, 190, 191; dentatus X 
Rynchospora capitellata, 190; 
Weatherbianus, 190, 191. 
Cytisus, 166; scoparius, 166. 
Dalea alopecuroides, 171. 
Dalibarda, 17; repens, 17. 
Dasistoma, 68, 70. 
Dasystoma, 68; Drummondii, var. 
serrata, 71; flava, 66. 
Dates of Eaton’s Ferns of North 
America, 74. 
Day, M. A., Dates of Eaton’s Ferns 
of North America, 74. 
Deane, W., Reports on the Flora of 
the Boston District, — XXVI. 15, 
SSNS 55, XXVIII. 164, X XIX. 
08. 
Delphinium Ajacis, 183; consolida, 
184. 
Desmodium, 167; bracteosum, 167; 
canadense, 167; canescens, 167; 
Dillenii, 167; glabellum, 167; 
grandiflorum, 167; marilandicum, 
167; nudiflorum, 167; obtusum, 
167; paniculatum, 167; rigidum, 
167; rotundifolium, 167. 
Diagnostic Character of Vallisneria 
americana, 108. 
Digitalis lanata, 203; lanata in New 
eee Amaranthus Powellii and, 
3. 
Digitaria humifusa, 102; Ischaemum, 
102. 
Dioscorea, 48; paniculata, 48, 49, 
72, var. glabrifolia, 49, 72; villosa, 
48, 49, 72, var. glabrifolia, 49, 72. 
Dover, Massachusetts, Spiranthes in, 
i el 
Draba incana, 104, 105, var. confusa, 
iae; megasperma, 105; stylaris, 
Eaton’s Ferns of North America, 
Dates of, 74. 
Eel Grass, 108. 
Eleocharis capitata, 24, 72, var. dis- 
213 
par, 24, 72; caribaea, 24, 72, var. 
dispar, 24, 72; dispar, 24: obtusa, 
24; tenuis, 24, 72. 
Elichrysum, 71, 72. 
Elymus, 81,82; arenarius, 82; arkan- 
sana, 87; australis, 82, 84, 86, var. 
glabriflorus, 82, 84, 86; brachy- 
stachys, 89; canadensis, 82, 83, 
86-89, forma crescendus, 90, var. 
glabriflorus, 84, var. glaucifolius, 
87, var. villosus, 90; carolinianus, 
83; crescendus, 90; curvatus, 84; 
diversiglumis, 83, 87; glabriflorus, 
84; glaucifolius, 87, 89; glaucus, 
82; halophilus, 83, 84; hirsuti- 
glumis, 83; in eastern North 
America, Some Species and Varie- 
ties of, 81; intermedius, 83; in- 
terruptus, 87; jejuna, 83; nitidus, 
83, philadelphicus, 87, 89; riparius, 
82, 84, 86, 89; robustus, 82, 83, 
86, 88, 89, var. vestitus, 83, 89, 
90; striatus, 83, 86, var. arkan- 
sanus, 83, 87, var. Ballii, 86, var. 
villosus, '86; villosus, 86; vir- 
ginicus, 82-84, var. halophilus, 
82, 83, var. hirsutiglumis, 82, 83, 
forma jejuna, 83, var. minor, 83, 
var. submuticus, 82, 84. 
Epilobium, 1, 9, 30, 32; adenocaulon, 
32-35, var. ' occidentale, 33, 35, 
var. perplexans, 33, 35; alpinum, 
36-38; alsinefolium, 36; anagal- 
lidifoltum, 36, 37; angustifolium, 
1—4, 6-10, forma ‘albiflorum, 3, 4, 
8. canescens, 4, var. intermedium, 
3-5, forma. macrophyllum, 2, $, 
var. macrophyllum, 4, var. 
platyphyllum, 4, 5, forma spec- 
tabile, 4; Bongardi, 38; boreale, 
33; coloratum, 33; densum, 29- 
31, var. nesophilum, 29, 31; 
glandulosum, 31-34, var. adeno- 
caulon, 34, 35, var. brionense, 
34, 35, var. cardiophyllum, 34, 
35, var. occidentale, 34, 35, var. 
perplexans, 34, 35, var. typicum, 
34, 35; Hornemanni, 36-39; in- 
termedium, 5; lactiflorum, 36-38; 
latifolium, 6-10; molle, 30, var. 
sabulonense, 31; montanum, 34, 
35; occidentale, 35; palustre, 
29°31; pauciflorum, 2 2, 5; per- 
plexans, 35; spicatum, 4, 8. albi- 
florum, 4, 8, leucanthemum, 4 4; 
Steckerianum, 38. 
Epilobium, Sect. Chamaenerion, 1, 
American Variations of, 1. 
