Preliminary List of Manitoba Fungi. IoI 
P. Impatientis (Schw.) Arth., 0, I on Impatiens biflora, 191; Swan River, 
492, 1080; Dauphin, W. P. F. Cultured by Prof. Fraser to Hordeum jubatum 
(Mycol. xI, 131, 1919). ‘ 
P. Lygodesmiae, Ell. and Ev., on Lygodesmia juncea, Brandon and Virden, 
WiP. Br. 
P. Magnusianum Koern., II, III on Phragmites Phragmites, Dauphin, 
Phi. 
P. Majanthae (Schum.) Arth. and Holw., I on Vagnera stellata, Unifolium 
*canadense, 80, 83, Brandon, W. P. F.; Tl, III on Phalaris arundinacea, 
Brandon, W. P. F. 
P. marylandica Lindr., I on Sanicula marylandica, 306; Brandon, W. P. F. 
P. Menthae Pers., II on Mentha glabrior, M. canadensis (?), Monarda 
fistulosa, M. mollis, Gilbert Plains, 1059; Swan River, 486; Brandon, Dauphin, 
Wee bata: Waskada, 99; Grand Beach, 162. 
P. monoica (Peck) Arth., I on Arabis sp., W. P. F.; II, III on Trisetum 
spicatum, The Pas, V. W Jackson, 257: 
P,. montanensis Ellis, II, III on Agropyron Smithii, Elymus canadensis. 
Brandon, Dauphin, W. P. i 
P. Peckii (De Toni) Kellerm., I on Oenothera biennis, 88, 240; II, III on 
Carex Sartwelli, Brandon, W. P.F. 
P. Polygoni-amphibii Pers., II, III on Polygonum Hartwrightii, P. Muhlen- 
bergii, 143; Gilbert Plains, 1015, 1065; Swan River, 490. 
P. Rhamni (Pers.) Wettst. (P. coronata Corda), I on Rhamnus alnifolia, 
R. cathartica, 136, 203; Morris, I. L. C., 78; Swan River, 484; Brandon, 
W. P. F.; II, III on Avena sativa, Calamagrostis canadensis, C. Langsdorfii, 
Beckmannia erucaeformis, Sclerochloa festucacea, Bromus sp., 204, 283; 
I. L. C., 106, 129; Swan River, 484; Brandon, W. P. F.; The Pas, VeVi 
Jackson, 281; Grand Beach, 209. 
1p. rubefaciens Johans., on Galium boreale, Brandon, W. P. F. 
P. rubella (Pers.) Arth., I on Rumex mexicanus, R. occidentalis, Dauphin, 
W. P. F.; II, III on Phragmites Phragmites, Dauphin, W. P. F. (See Mycol. 
XI, 130, 1919.) 
P. Sherardiana Koern., on Malvastrum coccineum (not certain). 
P. Sorghi Schw., II, III on Zea Mays, 467, 469. These are the first specimens 
known to be collected in Manitoba. The rust came to be very abundant in 
1g2I. 
P. Stipae Arth., II, III on Stipa comata, W. P. F. 
P. substerilis Ellis and Ev., III on Stipa viridula, Rapid City, I. L. C., 
113F.; Brandon, W. P. F.; common. 
Pp. Taraxaci (Reb.) Plowr.,, III on Taraxacum officinale, 121, 190, 1085; 
Gilbert Plains, 1063. 
P. triticina Eriks., II, III on Triticum aestivum, 207; Ste. Rose, 1014, 
1069; Swan River, 473. Occurred wherever wheat was grown in Manitoba in 
1921, and caused considerable loss. 
P. universalis Arth., 0, I on Artemisia gnaphaloides, Brandon, W. P. F.; 
II, III on Carex praegracilis, Brandon, W. P. F. 
P. Urticae (Schum.) Lagerh., I on Urtica Lyalli, U. gracilis(?), Morris, I. L.C., 
as Swan River, 1075; Dauphin, Webs Ee ie LEE on Carexespp,, Brandon, 
12h, 1c 
P. Xanthii Schw., III on Ambrosia trifida, Morris, I. L. C., 104. 
P. Ziziae Ell. and Ev., on Zizia aurea, Brandon, I. L. C., 1108. 
Pucciniastrum arcticum (Lag.) Tranz., II, III on Rubus ‘triflorus, AYN ela Beil ala 
Be wv. Jackson, G. R. B., 223. 
aS pustulatum (Pers.) Diet, II, III on Epilobium adenocaulon, Brandon, 
lee Perce (Pers.) Diet., on Pyrola rotundifolia, 364D, 84. 
Uredinopsis Struthiopteridis Storm., II, III on Onoclea Struthiopteris, 74; 
I.L.C andG. R. B., 158].; 468. Common. 
Uromyces acuminatus Arth., 0, I on Smilacina stellata and IJ, III on 
Spartina michauxiana, Brandon, W. P. F. 
U. Alopecuri Seym., I on Ranunculus Macounii, R. scleratus, Brandon, 
