10 
near Niagara River very little has been done in the Ontario District. 
In that part of the Erie District which lies west of Niagara River 
many localities remain to be investigated. But it is very safe to say 
that all our characteristic flowering plants and all our more abundant 
cryptogams are named in the Catalogue. The species hereafter to 
be detected within our limits will probably be found in scanty 
numbers and inhabiting very narrow bounds. 
The naturalized plants of Buffalo are a large and increasing num- 
ber. In accordance with usage their names appear in the Catalogue 
in small capitals. Several of them are of recent introduction:— 
a few as garden escapes, but the larger number through the agency 
of the southern and western railways. It is doubtful whether 
all these strangers will long remain; but it may be said that, in case 
they should disappear, they are likely to be introduced again in 
the same way. But some of them manifest a wonderful capacity 
of persistence and increase;—notably, Artemisia biennis (with us 
uniformly an annual), which, twenty years ago, was a rare plant, 
but is now met with in superabundance. 
Early in the history of the Society, the investigation of our 
Lichens was generously undertaken by Miss Mary L. Witson, then 
of our city, now of Haverhill, Mass. The success which attended 
her efforts in this difficult and neglected field, is demonstrated by the. 
very valuable collection of plants of that order, constituting a part 
of the Herbarium. Miss Witson has now enhanced the value of 
her labors by preparing with her own hand the list of the Lichens 
of Buffalo which makes a-part of the Catalogue. 
It is confessed, with much regret, that the investigation of the 
Algz of Buffalo has been greatly neglected. The list of them 
which appears in the Catalogue is from the very competent hands of 
Prof. Davip S. Ke.ticort, of the State Normal School in this city. 
But, unfortunately, Prof. KeLtticotr has not been able to give to 
their study more than a small portion of his time, and that only 
during the last few seasons. It may, however, be confidently expected 
that, at no distant time, a revised list of the Algz of Buffalo will 
be issued by the Society, with such extensions and corrections as, 
upon further research and examination, may appear necessary. 
Grateful acknowledgments are made to Mr. CHARLES H. PECK, 
of Albany, N. Y., the State Botanist, for his kindness in supervising 
