1919 
Index 
No 
bo 
mÓ 
INDEX TO VOLUME 21. 
New scientific names are printed in full face type. 
Abies canadensis, 41, 108, 109. 
Acacia, 29. 
Acalypha, 82; 
ginica, 82 
Acanthophora orientalis, 206. 
Acer, 127, 190; Negundo, 127; ni- 
grum, 190; pennsylvanicum, 127, 
130, 199; platanoides, 127; Pseudo- 
Platanus, 127; rubrum, 119, 127, 
var. tridens, 127; saccharinum, 
127; saccharum, 127, 190, 199; 
spicatum, 127, 130, 199. 
Aceraceae, 127. 
Achillea millefolium, 170. 
Acrostichum Thelypteris, 174, 178. 
Actaea alba, 200; rubra, 200; rubra 
neglecta, 116. 
Adelia, 190. 
Adiantum pedatum, 200. 
Adlumia fungosa, 201. 
Aesculaceae, 190. 
Aesculus, 127, 190; TOTIS SUP 
127. 
Aetopteron, 10. 
Agrostis, 28. 
Ailanthus, 81; glandulosa, 81. 
Algae, Chinese Marine, 203. 
Alnus, 190; incana, 190; rugosa, 119. 
Alsine, 1-4, 7-12; aizoides, 6; ana- 
tolica, 6; attica, 6; austriaca, 11; 
biflora, 11-13, 15; caucasica, 5; 
cymifera, 5; decipiens, 6; dianthi- 
folia, 6; ; Douglasi 12; Funkii, 5; 
gee ; groenlandica, 20; hirta, 
21; a foliosa, 22; intermedia, 6; 
laricifolia, 16;  leucocephala, 6; 
libanotiea, 6; ‘media, 7-9; minor, 
regs octandra, 11; parnassica, 6; 
|» propinqua, 22; UNE 6; ri- 
marum, 6; rube la, 12, 22, var. 
hirta, 22; rupestris, 11; Schim- 
perii, 6; segetalis, 7-9; striata, 16; 
stricta, 12; Thevenaci, 6; The 
Type of the Genus, 7; verna, 12, 
9 glacialis, 22, n hirta. 21, 6 pro- 
pinqua, 22, @ rubella, 22, var. 
Thevenaei, 6; Villarsii, 11. 
Alsinanthe, 11, 12; biflora, 13. 
gracilens, 82; vir- 
Alsinella, 12; biflora, 13; rubella, 22. 
Alsinopsis, 9, 11, 12; arctica, 10; 
caroliniana, 9; Douglasii, 12: The 
earlier Names for, 9; glabra, 9, 20; 
groenlandica, 9, 20; hirta, 22, 
laricifolia, 11, 16; obtusiloba, 14; 
15; propinqua, 9, 22; quadri- 
valvis, 22; sajanensis, 9, 11, 13; 
stricta, 9; tenella, 12; verna, 9, 11. 
Altingiaceae, 190. 
Amelanchier canadensis, 199; ob- 
longifolia, 119. 
American Elm, 42; Representatives 
of Arenaria sajanensis, 12; Varia- 
tions of Arenaria verna, 21. 
Ammodenia, 1-5; peploides, 4. 
Amphicarpa monoica, 200. 
Amsinckia, 38, 39, 148; Arenaria, 39, 
40; barbata, 38, 40; Douglasiana, 
148; in New England, 38; in- 
tactilis, 39, 40; intermedia, 39, 
40; lycopsoides, 38, 39; Menziesii, 
39, 40; spectabilis, 40. 
Amygdalaceae, 190. 
Anacardiaceae, 125. 
Andrews, A. L., Dicranoweisia crisp- 
ula in the White Mountains, 207. 
Anemone canadensis, 56, 59; nar- 
cissiflora, 53; riparia, 50. 
Angelica, 145; Archangelica, 146; 
atropurpurea, 65, 145; p cida, 144— 
146, The Identity of, 144. 
Annual Field Meeting of the Ver- 
ovd. Botanical and Bird Clubs, 
Another exceptional Specimen of 
Daucus Carota, 147. 
Antennaria  neodioiea, 200, 
grandis, 200. 
Anthochloa, 216. 
Antithamnion cruciatum, 203, 204, 
206. 
Apargia autumnalis, 211. 
Aplozia hyalina, 150; obovata, 162. 
Aquifoliaceae, 125. 
Aquilegia canadensis flaviflora, 116. 
Arabis laevigata, 201; lyrata, 59, 
201. 
var. 
