8 Rhodora [JANUARY 
lutely no evidence known to the taxonomist and the students of our 
northern floras of Epilobium latifolium in the vast Canadian region 
between the Matane River (longitude 67° 40’ w.) and the east coast 
of James Bay (longitude 79° w.) nor between Hudson Bay and south- 
western Alberta (longitude 113° w.); and, consequently, the elongate 
black area indicated on Dr. Forsaith’s map in south-central Canada 
(from west-central Ontario across the plains of southern Manitoba 
to southeastern Saskatchewan) is supported by no evidence whatever 
in the herbarium nor in trustworthy records. 
Yet on pages 475 and 476, in the list of specimens of E. angusti- 
folium examined by him, Dr. Forsaith marks 12 out of the 18 speci- 
mens from eastern Canada (east of the Rocky Mts.) and the Black 
Hill and Great Lake regions as having imperfect pollen and being, 
therefore, by his assumed premise, of hybrid origin. According to 
Müller E. angustifolium is visited chiefly by bees, wasps and flies, 
and in order to gain a conception of the flights required of the bees (the 
strongest fliers) by Forsaith’s inference, that all plants of E. angusti- 
folium in southern Canada and the Great Lake region with defective 
pollen are the results of hybridizing with Æ. latifolium, it is worth 
while to measure the distances from the nearest stations of E. lati- 
folium to the stations of plants of E. angustifolium which he considers 
to be of hybrid origin. His 12 stations between the Straits of Belle 
Isle and the Rocky Mountains are, therefore, listed below, following 
the sequence in Dr. Forsaith’s paper (beginning with Labrador, 
crossing the continent to California and Alaska, then back to Green- 
land and Labrador and retracing a transcontinental route to the 
Pacific); and after the name of each station is indicated the distance 
in an air-line to the nearest known station of the very local E. lati- 
folium. 
Blanc Sablon River, Labrador, 10 miles to Forteau. 
Seven Islands, Quebec, 90 miles to Mingan River. 
Lake Edward, Quebec, 210 miles (as far as from New York to Washington 
or from Chicago to Toledo) to Matane River. 
Rivière du Loup, Quebec, 125 miles (as far as from New York to Phila- 
delphia or from Chicago to Madison, Wisc.) to Matane River. 
Mt. Albert, Quebec, 20 miles and a descent of nearly 4000 feet to the 
gravel deposits of the lower River Ste. Anne des Monts. 
Mungo Park, Lake Nipigon, Ontario, 450 miles (as far as from New York 
to Raleigh, Eastport or Quebec or from Chicago to Omaha, Kansas 
City or Buffalo) to Fort George. 
