128 ROYAL SOCIETY OF CANADA 
Canada. This is Pimpinella saxifraga, a plant common in France and 
Central Europe. It belongs to the Umbelliferæ family and might be 
easily mistaken for the caraway. It covers both sides of the road for 
two or three miles above Fredericton to the exclusion of almost every 
other plant. It is, no doubt, an aggressive weed, but up to this time 
has shown no disposition to spread broadcast, as the caraway has done, 
over cultivated fields and meadows. This conservatism is highly 
praiseworthy in a weed. Its advent to the locality near Fredericton 
was very likely coeval with the French occupation more than two 
centuries ago. The history and habits of this plant are worthy of 
investigation. 
I am not aware that the question has ever been raised whether 
the Hop, Humulus Lupulus, is indigenous in any province of Canada 
or not. It has been a question among plant students in New Bruns- 
wick, but its discovery along the Restigouche in positions where it could 
not be very well introduced, perhaps settles the matter in favour of its 
being a native. 
The presence of a vetch with yellow flowers, Lathyrus pratensis, on 
an old camping ground near Boston Brook on the Restigouche, as also 
its presence on the Miramichi, and in a meadow near Salmon river below 
Grand Falls on the St. John, shows that it may have been introduced. 
The most abundant deciduous tree on the middle and upper waters 
of the Restigouche is the Balsam Poplar, Populus balsamifera, and on 
some of the low grounds it had taken complete possession, the upper 
portion of the soil being a matwork of its roots. 
Many plants found on the upper waters of the St. John are equally 
abundant along the Restigouche, growing on the Silurian ledges, the 
outcroppings of which are very frequent on the borders of the stream. 
Those most frequently noticed were: Anemone Pennsylvanica, A. riparia, 
A. multifida, Castilleia pallida, var septentrionalis, Hedysarum boreale, 
Parnassia Caroliniana, Tofieldia glutinosa, Astragalus alpinus, A. oro- 
boides, Shepherdia Canadensis, Apios tuberosa, Allium Schenoprasum, 
Desmodium Canadense, Prunus pumila, Oxytropus campestris, Asclepias 
cornutt, Sanguinaria Canadensis, Caulophyllum thalictroides, Asarum 
Canadense, and a few others. Tanacetum Huronense, very abundant 
on the St. John river, was found in but one locality on the Resti- 
gouche. This is the farthest point east, to my knowledge, that this 
interesting western plant has been discovered. Another interesting 
western plant found at Eel river, below the mouth of the Restigouche, 
is Collomia linearis. The only stations reported east of Minnesota 
are in the State of New York, at the station above mentioned, and 
near Point Lepreau, New Brunswick, where it is apparently introduced. 
It is one of the curiosities of plant distribution that this peculiar 
