\i\ BOTANICAL AUTHORITIES. 



Bulletin Torrey Botanical Club, XVIII, L60 



Pinua Banksiana, Lamb .... 8 



Chamberlain, E. B. . . . Ulmus fulva, Michx. (1898) . . . 97 



Churchill, J. R Prunus Americana, Marsh. . . . L23 



Collins, J. F ,. . . . v 



Gleditsia triacanthos, L 129 



Dame, L. L Crataegus Crus-Galli, 1 171 



Salix fragilis, L. (Typical Kims <iwl 

 other Trees of Massachusetts, 



p. 85) II 



Day, F. M Pinus Banksiana, Lamb .... 8 



Deane, Walter .... Sassafras officinale, Nees (1895) . . 106 



Dudley, W. R Populus heterophylla, L ''<'> 



Egg lesion, W. W. . . . Carya porcina, Xutt 53 



Celtis occidentalis, L 100 



Moras rubra, L ]<>2 



Platanus occidentalis, L 110 



Populus deltoides, Marsh 34 



Sassafras officinale, Nees . . . . 100 



Ulmus racemosa, Thomas .... 99 



Engler, Adolph v 



Fernald; M. L Fraxinus Pennsylvanica, Marsh, var. 



lanceolata, Sarg. (in lit., Sept., 



1901) . . 172 



Gleditsia triacanthos. L 120 



Populus balsamifera, L. var. candi- 



cans, Gray (Rhodora, III, 233) 171 



Salix balsamifera, Barratt . . . . 171 

 Salix discolor, Muhl. (in lit., Sept., 



1901) 171 



Flagg Moras rubra, L 102 



Flint, W. F. . . v 



Acer Negundo, L 151 



Quercus alba, L 75 



Flora of Vermont .... Betula lenta, L. (1900) ...... 61 



Crataegus Crus-Galli, L. (1900) . . 117 

 F'raxinus Pennsylvanica, Marsh. 



(1900) -.164 



Picea nigra, Link (1900) .... 12 



Pinus rigida, Mill (1900) .... 6 



Populus deltoides, Marsh. (1900) . 34 



Quercus alba, L. (1900) .... 75 



Furbish, Miss Kate . . . Crataegus coccinea, L. (May, 1899) . 119 



Pinus Banksiana, Lamb .... 8 



Goodale, G. L Pinus Banksiana, Lamb .... 8 



