142 Rhodora : [JULY 
It is probable, however, that, though appearing indigenous on our 
northern waters, the campion, the mugwort, the field sow-thistle and 
the hawkweed are to be looked upon as European plants long ago in- 
troduced by the Jesuits. And just as about our cities and towns they 
often spread along highways, following the advance of commercial 
intercourse, they have become thoroughly scattered and established 
on the northern streams — the natural highways of the voyageur, the 
Acadian settler, the modern canoeman and the river-driver. If this 
be the true explanation, we should expect to find them on any of the 
rivers, the Saguenay, the Chaudière, and the Richelieu, for example, 
which are more or less directly confluent with the St. Lawrence. 
They are to be expected, in fact, on any stream which was followed 
by the Jesuits. 
DAPHNE MEZEREUM IN VERMONT. — I wish to record in RHODORA 
a very attractive addition to our Vermont flora, Daphne Mezereum, 
Linn. The daphne is, of course, not uncommon in gardens. In Gray's 
Manual it is stated that it escapes from cultivation in Massachusetts 
and New York, but it is not recorded from northern New England. I 
find it scattered over several square rods of a wooded ledge near Bur- 
lington, Vermont, and in one place forming quite a thicket. Some of 
the stems are an inch in thickness, showing that they have been there 
for years. The plants flower and fruit abundantly, and seedling plants 
are very numerous. I have also received the daphne this spring from 
a correspondent in North Montpelier, Vermont, who reports it as a 
* wild flower" there. Doubtless it occurs in many places in the State, 
but has hitherto escaped record. — L. R. Jones, University of Vermont. 
CRITICAL NOTES ON THE NEW ENGLAND SPECIES 
OF LAMINARIA. 
WILLIAM ALBERT SETCHELL. 
( Conclusion. ) 
TAKING the various characters enumerated into consideration, the 
New England species of Laminaria may be arranged and character- 
ized as follows : — 
