Preliminary List of Manitoba Fungi. 97 
On leaves of Shepherdia argentea, Gilbert Plains, Manitoba, coll. July 27, 
1921, G. R. Bisby, No. 1125. Type in J. J. Davis’ collections, co-type 
at Man. Agr. College. The trichomes give a somewhat cinereous appear- 
ance to the spots. 
C, rhoina C. and E., on Rhus Toxicodendron, Thunder Hill, 1136D. 
Cladosporium subsessile Ell. and Barth., on Populus leaves, 316D. Common, 
Colletotrichum salmonicolor O’Gara, on stems of Asclepias sp., 318D. 
Cylindrosporium Padi Karst. (Coccomyces), on leaves of Prunus, 311; 
Eden, 459. 
Cystospora chrysosperma (Pers.) Fr. (Valsa sordida Nke.?), on Populus, 
J. F. Higham, 446. 
Darluca filum (Bib.) Cast., on sori of rusts. Common, especially on telia 
late in the season. 
Discosia artocreas Fr. (?), on Rubus triflorus, 374D. 
Fusarium conglutinans callistaphi Beach, on Aster (cult.) causing wilt. 
Common. The fungus was not fully determined as to species but is 
probably the above. 
F. discolor sulphureum Schl., on potato tubers, causing rot. A number of 
isolations indicated that this is the commonest Fusarium in rotted 
potatoes in Manitoba. 
F. Lini Bolley, on flax (cult.). Not common; definite record only from 
Winnipeg. 
F. oxysporum Schl., on potato. Wilt of potatoes in Manitoba was found, so 
far as isolations were made, to be caused by this Fusarium. 
Haplosporella diatrypoides E. and B.(?), 392B. 
Helminthosporium gramineum (Rab.) Erik., on barley, 159, 167, Ste. Rose, 
1o10o. Common and sometimes destructive. 
H. sativum P. K. and B., on barley; Swan River, 495; everywhere in 
Manitoba causing considerable injury. 
H. teres Sacc., on oats and barley, quite common but not found to be 
serious. 
Phyllosticta livida E. and E., on Quercus macrocarpa, J. J. Christensen 
and Gok B.. 304: 
Ramularia Tulasnei Sacc. (apparently), on cult. strawberry, 123D. 
R. Urticae Ces., on nettle, I. L. C. and G. R. B., r191D. 
Septoria conspicua E. and M., on Steironema ciliata, Ste. Rose, 1139D. 
. Convolvuli Desm., on Convolvulus sepium, Emerson, I. L. C., 1176D. 
. flagellifera E. and E., on Pisum sativum (cult.), 1150D. 
. lactucicola E. and M., on Lactuca sp. 317D. The same or a similar fungus 
also on Sonchus arvense. 
musiva Pk., on Populus balsamifera, I. L. C., 1172D. 
Oenotherae West, on Oenothera biennis, Gilbert Plains, 1126D. 
ribis Desm., on Ribes (cult. gooseberry), 1194, 1195. 
. Sicyi Pk. (S. Brencklei Sacc.), on Micrampelis lobata, Morris, I. L. C., 
313D. 
S. Symphoricarpi E. and E., on Symphoricarpos sp., Morris, I. L. C., 
3190D. 
Trichoderma lignorum (Tode) Harz, has been found. 
Vermicularia (?; immature), on Smilax herbacea, 1130D. 
Verticillium albo-atrum McA. Has been observed on rotting potato tubers. 
NNNN NNN 
BASIDIOMYCETES. 
USTILAGINALES. 
The writers have made no extended search for smuts in 
Manitoba, and this list includes principally conspicuous eco- 
nomic forms. The range of certain species is, however, extended. 
W. P. Fraser and I. L. Conners have helped in preparing this 
list. 
MS. 7 
