INDEX TO VOLUME 31 
Names of species and varieties described as new are in black face type. 
Abies balsamea, 155, 163 
Abutilon avicennae, 35 
Acer pennsylvanicum, 155; Lane 
56, 162; saccharum, 56; spic 
m, 155, 162 
Acerates viridiflora, 34 
Achetaria scutellarioides, 143 
Achillea asplenifolia, 32; millefolium, 
32 
Acnida se ome LT Lis 
Acorus calamus 
Agalinis purpur ae 
Albizzia Julibrissin, 6 
Alnus alnobetula, 165 
Alsima subcordatum, 35 
Alsophila microdonta, 142 
Amaranthus spinosus, 142 
Amelanchier Bartramiana, 156 
Ammocallis, 49 
Ammonodon rostratus, 120 
Anaphalis margaritacea, 35, 168 
Anderson, Gladys P., 85, 182 
Andrews, Eliza Frances, 62 
Andropogon argyraeus, 2; scoparius, 
2 
Anemone cylindrica, 35 
Angelica villosa, 34, 178 
Aquilegia canadensis, 116 
Aralia hispida, 118; nudicaulis, 116; 
spinosa, 34, 55 
Arceuthobium pusillum, 120 
Arctostaphylos uva-ursi, 88, 146 
Arcyria, 43 
Arenaria groenlandica, 165 
Arisaema triphyllum, 116 
Asclepias pulchra, 34; purpurascens, 
34; quadrifolia, 34; rubra, 34; 
, Notes on Magnolia and 
Other Woody Plants, 37 
Aspidium cristatum var. Clintonian- 
21; Goldianum, 121; simu- 
atum, 180 
Asplenium platyneuron, 155; Ruta- 
muraria, 121, 182; Trichomanes, 
1, 182 
Aster acuminatus, 155, 162; cordi- 
folius, 35, 184; ericoides, 35, 184; 
pen 35; lateriflorus, 35; macro- 
phyllus, 155; novaeangliae, 35; 
aniculatus, 184; puniceus, 35; 
ea 178; nia, 178; 
undulatus, 35; lowrieanus, 35 
Athyrium E 35 
Aulacomnium heterostichum, 16 
Avery, George Sherman, 59, 128 
Azalea japonica, 31; nudiflora, 35 
Baccharis, 178 
Badhamia magna, 43 
A roseus, 182 
160 
a 
Benedict, Ralph C., 98 
Benzoin aestivale, 35 
Berberis Thunbergii, 30 
Berteroa incana, 35 
Betula coerulea, 162; glandulosa, 165; 
lenta, 56, 162; lutea, 155; papy- 
rifera, 162; papyrifera var. cordi- 
folia, 155; populifolia, 162 
Bihai paitticorui, 143 
Blephariglottis lacera, 35 
Blinks, Anne H., 94 
Bliss, Carl E., 125 
Bogusch, E. R., A New Variety of 
Koelberlinia, 73 
Bolley, H. L., 159 
Book Reviews: Barrett, A Field Key 
to the Genera of Wild and Culti- 
vated Trees 115; Degener, Ferns 
188 
