1910] 
Index 
231 
INDEX TO VOLUME 12. 
New scientific names are printed in full face type. 
Abele, 178. 
Abies, 177; balsamea, 103, 177, var. 
phanerolepis, 103. 
Acacia, False, 181. 
Acer, 182; pennsylvanicum, 182; 
platanoides, 30, 32; rubrum, 128, 
182, var. tridens, 110, 140; sac- 
charum, 128, 182, spicatum, 37, 
182. 
Aceraceae, 182. 
Acorus, 5; Calamus, 5. 
Actaea rubra, 128. 
Additions to the Rhode Island Flora, 
216. 
Aesculus Hippocastanum, 32. 
Affinities of a certain boreal Variety 
of Galium, 228. 
Agastache scrophulariaefolia, 192. 
Agrimonia Brittoniana, 16; gry- 
posepala, 113, 140; mollis, 189. 
Agriopyrum caninum, 70. 
Agropyron, 26, 27, 61; andinum, 75; 
biflorum, 65, 74, subsp. andinum, 
75; brevifolium, 66, 74; caninum, 
26, 27, 61-64, 68, 69, and its 
North American Allies, 61, var. 
andinum, 69, 75, forma glaucum, 
69, 71; var. Gmelini, 69, 75, var. 
Gmelini, forma Pringlei, 69, 70, 
206, var. Hornemanni, 69, 73, 
var. Hornemanni, forma pilosi- 
folium, 69, 75, var. latiglume, 
69, 73, var. Pringlei, 76, forma 
pubescens, 69, 71, var. pubescens, 
71, var. tenerum, 69, 71, var. 
tenerum, forma ciliatum, 69, 
72, var. tenerum, forma Fernaldii, 
69, 73, var. unilaterale, 67-69, 
76, var. unilaterale, forma cilia- 
tum, 69, 76, forma violascens, 76, 
caninoides, 70; Gmelini, 66, 75, 
var. Pringlei, 66, 67, 76, 206; 
Notes on, 205; Novae-Angliae, 
63, 71; pungens, 26; repens, 27, 
62, 63, var. tenerum, 62, 71; 
Richardsoni, 62, 67, 68, 76, var. 
ciliatum, 77; Scribneri, 66, 76, 
205, 206; tenerum, 26, 61, 63, 66, 
68, 71, 205, var. ciliatum, 73, var. 
longifolium, 68, 205, subsp. tricho- 
coleum, 73; unilaterale, 67, 76; 
violacescens, 76; violaceum, 26, 27, 
61-66, 68, 74, var. andinum, 61, 
62, 75, forma caninoides, 68, var. 
caninoides, 70, var. genuina, 74, 
subsp. latiglume, 73, var. lati- 
glume, 61, 62, 64, 73, var. major, 
74, forma violascens, 68, forma 
virescens, 74, var. virescens, 64, 
74; violascens, 76; virescens, 62. 
Agropyrum caninum, var. Gmelini, 
? 
Agrostis, 28, 29. 
Ailanthus glandulosa, 9. 
Alder, Black, 181; Downy Green, 
178; Hoary, 178; Speckled, 178. 
Alectorolophus minor, var. fallax, 
143, var. vittulatus, 143. 
Alexandrina, 23. 
Alisma, 3; Plantago-aquatica, 3. 
Alismaceae, 3. 
Allium Schoenoprasum, var. sibiri- 
cum, 112. 
Alnus, 178; incana, 128, 178; mollis, 
103, 175, 178; rugosa, 128; viridis 
175, 178. 
Alopecurus geniculatus, 104, 135. 
Alsine, 160; marginata, 161; marina, 
160, 161; media, 160, 162. 
Alternate-leaved Dogwood, 182. 
Ambrosia trifida, var. integrifolia, 111. 
Amelanchier, 180; canadensis, 109, 
128, 180, var. tomentula, 108, 139; 
oblongifolia, 128, var. micropetala, 
128; oligocarpa, 105, 176, 180; 
spicata, 114. 
America, The Representatives of 
Erigeron acris in northeastern, 
225; Two new Galiums from north- 
eastern, 77; The Variations of 
Lonicera caerulea in eastern, 209; 
A Variety of Solanum new to, 40. 
American Aspen, 178; Cranberry, 
183; Elm, 179; Fly Honeysuckle, 
184; Larch, 177; Mountain Ash, 
179; White Weed, 15; Wild Rice, 
25; Yew, 176. 
Ammophila arenaria, 26, 28, 30. 
