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PRELIMINARY LIST OF MANITOBA FUNGI. 
By G. R. Bisby and A. H. R. Buller. 
Manitoba extends north of Minnesota and North Dakota from 
the 49th to the 60th parallels of latitude. Manitoba is, therefore, 
in the same latitude as the British Isles, and extends, roughly, 
from the parallel of Paris and Vienna to that of Christiana and 
Petrograd. Climatic conditions are quite different, however, 
from those of most of the corresponding area in Europe. 
Many species of Phanerogams attain their northern limits in 
Manitoba, and various plants reach their eastern or their 
western limits in this province, which marks a transition from 
a wooded rocky region in the eastern part to drier plains in the 
western portion. Manitoba is a region of considerable myco- 
logical interest. 
This list is very incomplete: in only a few groups, such as 
the rusts and polypores, has anything more than a general 
preliminary survey been made, and in no case can this list 
purport to approach completeness. It does, however, serve to 
extend the range for a considerable number of species of fungi, 
and records the occurrence of such fungous diseases as have 
been observed, especially during 1920 and 1921, in the province. 
The collections have practically all been made in the southern 
quarter of the province, and principally below the 51st parallel. 
One trip was made to the Swan River Valley, just above 52° 
north latitude. The fungi of eastern Manitoba are represented 
largely by collections from Kenora and Minaki, which are in 
Ontario, but near the Manitoba line, and which are represen- 
tative of conditions in south-eastern Manitoba. The highly 
interesting far north of Manitoba is as yet little surveyed for 
fungi. 
This list to a considerable extent is dependeat upon, and its 
accuracy is greatly heightened by, determinations made by 
various specialists. Grateful acknowledgment is made to those 
who have determined or corroborated the determinations of 
various specimens, and also to Professor V. W. Jackson, Mr 
I. L. Conners (marked “I.L.C.”’), and others-who have aided 
in making collections, and in determining hosts. The initial of 
those who have made determinations of fungi is given in each 
case: if no initial follows, the identification is by the writers. 
The key to these initials is as follows: 
Br.=Dr J. F. Brenckle, Kulm, N.D. Pyrenomycetes, etc. 
B.=Dr E. A. Burt, Missouri Botanic Gardens, St Louis, Mo. Thelephora- 
ceae, etc. 
