11 
and correcting our lists of Musci, Hepaticee and Fungi:—originally 
prepared by Judge CLinron, by whom all the species were detected, 
except as otherwise stated. 
For the accompanying map we are indebted to Mr. JuLius 
PoHLMAN, Custodian of the Society, and to Mr. HENRY CHANDLER, 
of this city, who has generously assisted in the engraving of it. It 
is hoped that it will prove of use, not only at the present time, but 
in the future, as a guide to the localities in which some of the rarer 
and more interesting members of our Flora were detected. The 
altitudes, given upon the map, of various places named in the Cata- 
logue, have been obtained in all instances from sources which, it was 
thought, could be relied upon. In the main, it is to be presumed 
that they are nearly, if not quite, accurate. 
It will be seen that the names of a few species, which appear in the 
Catalogue, are not accompanied by numbers. In such instances the 
plants are mentioned either because they are known to have formerly 
existed in this vicinity, although they have now disappeared, or 
because there is evidence, more or less satisfactory, for believing 
that they actually belong to our Flora, and will yet be detected 
here. In any event, however, as they are not numbered, their 
inclusion in the Catalogue will not lead to any misapprehension. 
Whenever any plant is named and its locality is not given it 
may be understood that the plant is one of general diffusion 
through our territory. When localities are given, they are men- 
tioned in the order of their distance from Buffalo:—the nearest first. 
In all such cases it may be understood that the compiler has re- 
garded them as among our rarities. All phenogamous plants and 
their stations are named upon the authority of his personal observa- 
tion, except as otherwise stated. From this, however, it is not to be 
inferred that he claims to have been the discoverer of the species in 
the localities named. The fact is often to the contrary. 
A word may be of use in explanation of the nomenclature 
adopted in the Catalogue. Asa rule, the names of species are those 
employed by Watson, in his “ Bibliographical Index to North 
American Botany,” so far as that valuable work has issued from the 
press. But where such names differ from those given by Gray, 
in the fifth edition of his Manual, the latter will be found in paren- 
theses. In a very few instances the compiler has ventured to differ 
