109 



INDEX 



(The names of species and varieties described as new and of new com- 

 binations are in bold faced type.) 



Acer Negundo, 62, 63; rubrum, 59; 



saccharinum, 62; saccharum, 61 

 Acerates viridifiora, 2 

 Acorus Calamus, 99 

 Additional Occurrences of Pleistocene 



Plants, 10 

 Additions to the Flora of the Pribilof 



Islands, 67 

 Additions to the Flora of Western 



Oregon during 1921, 98 

 Adonis cupaniana, 5; microcarpa, 5 

 Advertising for a Tree, 30, 108 

 African Moss in Trinidad, A, 12 

 Agalinus purpurea, 38; virgata, 48 

 Agrimonia rostellata, 46 

 Ailanthus glandulosus, 3 

 Alabama, Some Pine-barren Bogs in 



Central, 57 

 Aletris aurea, 59 

 Algae, Remarks on a Collection of 



Chinese, 14 

 Allen, Walter S., 43 

 Allium neopolitanum, 99 

 Allocarya californica, 102; granulata, 



102 

 Alnus Alnus, 2; rugosa, 59 

 Amaranthus defiexus, 3; pumilus, 46; 



spinosus, 3 

 Amateur Observations on Color 



Forms, Some, 37 

 Ambulia micrantha, 79; psilosa, 79; 



rigida, 78 

 Amelanchier canadensis, 24 

 Anagallis arvensis, 9; coerulea, 9 

 Anchusa italica, 100 

 Andrews, Mary S., 107 

 Andropogon glomeratus, 59 

 Anemone cylindrica, 27; quinque- 



folia, 24, 39 

 Anoda triangularis, 3 

 Antennaria, 23 



Antirrhinum canadense assurgens, 81 

 Apocynum androsaemifolium, 27 

 Aquilegia canadensis, 24, 39, 46 

 Arabis canadensis, 46; lyrata, 2 

 Aralia nudicaulis, 25, 38 

 Arenaria caroliniana, 46 

 Arethusa bulbosa, 26 

 Argyranthemum, 8 

 Arisaema triphyllum, 24 

 Aristida tuberculosa, 44 

 Armeria, 8 



Aronia arbutifolia, 59 

 Artemisia argentea, 9 

 Arthochortus loliaceus, 8 

 Arthur, J. C, Changes in Phanero- 

 gamic Names, 30 

 Arthur, John M., 13 

 Arundinaria macrosperma, II 

 Asarum canadense, 23 

 Asclepias syriaca, 27; verticillata, 2 

 Ascyrum stans, 60 

 Asphodelus, 8 

 Aster Novae- Angliae, 39; nemoralis, 



49 . . 



Austrian Field Cress in the United 



States, 73 

 Azolla caroliniana, 102 



Balea perversa, 6 



Balfour, Sir Isaac Bayley, 55 



Barker, Eugene, A Note from the 



Okefinokee Swamp, 104 

 Barnhart, John H., 43 

 Bartram, Edwin B., 67 

 Bazina nudiflora, 80 

 Benedict, R. C, 72; Some Plants of 



Chimons Island, 49 

 Benner, Walter, 94 

 Berry, Edward W., Additional Oc- 

 currences of Pleistocene Plants, 10 

 Beta vulgaris, 99 

 Betula, 62; populifolia, 3, 84 

 Bidens cernua X connata, 49; co- 



mosa, 49; discoidea, 49; tricho- 



sperma tenuiloba, 49 

 Birch, Notes on a Growth of Young 



White, 84 

 Bivonea urens, 30 

 Blake, S. F., 73, 97 

 Blephariglottis peramoena, 71; psy- 



codes, 13 

 Book Reviews, 50, 106 

 Botanizing in British Guiana, 33, 52 

 Boynton, Kenneth R., 33 

 Brachyeletrum erectum, 44 

 Brainard, Ezra, 43 

 Brassica nigra, 21 

 Brickellia adenocarpa, 30 

 Briggs, Thomas Lynton, 43 

 Britton, Mrs. E. G., 12, 107 

 Britton, N. L., 16, 32, 34, 43 

 Brodiaea uniflora, 99 

 Bromus sitchensis, 102 



