276 



Mycologia 



lector unless collected by myself. Subscribers to the author's 

 " Fungi Dakotenses " will kindly note certain corrections in the 

 names of fungi and hosts. 



I. Phycomycetes 



Albugo Blitii (Biv.) Kuntze. 



On Amaranthus graecizans, A. blitoides, and A. retroflexus. Kulm, Aug. 



1911; Jamestown, Sept., 1884, Seymour. 

 (Fungi Dak. 136, 159, 159a.) 



Albugo Candida (Pers.) Kuntze. 



On Brassica arvensis and Cap sella Bur sa-past oris. Kulm, July, 1908. 

 (Fungi Dak. 27, 27a..) 



Albugo Tragopogonis (Pers.) Kuntze. 



On Artemisia biennis and Ambrosia psilostachya. Kulm, July, 19 12. 



On Ambrosia trifida. Bismarck, Aug., 1915. 



On Tragopogon porrifolius. Fargo, July, 19 15, Stevens. 



(Fungi Dak. 158, 193, 327, 351.) 



Basidiophora Kellermanii (Ellis & Hals.) Wilson. 



On Iva xanthiifolia. Kulm, 191 1, Sykeston, Seaver. 

 (Fungi Dak. 28.) 



Cladochytrium major (Schroet.) Fish. 



On Rumex brittanica. Kulm, June, 1910. 

 (Fungi Dak. 138.) 



Peronospora Arthuri Farl. 



On Anogra strigosa. Kulm, June, 1910. 

 (Fungi Dak. 123.) 



Peronospora calotheca DeBary. 



On Galium boreale. Kulm, June, 19 13. 

 (Fungi Dak. 391.) 



• Peronospora effusa (Grev.) Rahb. 



On Chenopodium album. Kulm, July, 1912. 



Peronospora gangliformis (Berk.) DeBary. 



On Lactuca pulchella. Kulm, Aug., 1908. 

 (Fungi Dak. 390.) 



Peronospora leptosperma DeBary. 



On Artemisia biennis and A. ludoviciana. July, 1912. 

 (Fungi Dak. 197, 336.) 



Peronospora Echinosperma Swingel. 



On Lapulus Lapulus. Jamestown, June, 191 3. 

 (Fungi Dak. 198.) 



Peronospora parasitica (Pers.) Tul. 



On Lepidium sp. Jamestown, 1884, Seymour. 



Peronospora Polygoni Thuem. 



On Polygonum convolvulus. Kulm, June, 19 13. 



