158 LE NATURALISTE CANADIEN 
the word “* flavicornis ” crossed out and above it written the 
word *“ halcvon”, It, therefore, appears certain that the type 
of Selandria flavicornis stands in the collection under the 
name Selandria halcvon. In this case this is also proven by 
the fact that Provancher instead of supplying a new label 
just reversed the old label and wrote the name Selandria 
halcyon so that we find on the underside of the label for S. 
halcyon the original label for Selandria flavicornis. This one 
case is sufficient to show how Provancher worked. Many 
other similar cases could be mentioned. There are many ca- 
ses, however, where there is no proof, either in the catalogue 
or in the labeling, that the types of some of Provancher's 
species which were later suppressed by him stand under the 
name of the species with which he considered them to be 
synonymous. În such cases we can only assume, from our 
knowledge of Provancher’s methods, that this is what has 
taken place. 
At no time while studying the collection did we remove 
any labels, and we were always very careful to put the speci- 
mens back where they came from so that the collection still 
stands as it was arranged by Provancher. We did not even 
feel justified in labeling the specimens which we believed to 
be the type as lectotypes, and will rely in this paper entirely 
on the name label and the number label for means of cor- 
rectly identifying the specimens which we believe should 
stand as type. 
B—Harrington Collection. 
The types in the Harrington collection are in good condi- 
tion, and although they usually do not bear the name label in 
Provancher’s writing we were assured by our friend Mr. 
W. H. Harrington that they were the identical specimens 
