982 Wisconsin Academy of Sciences, Arts, and Letters. 



APPENDIX. 



Cercospora rubigo Cke. & Hark (?) 



Of the fungus doubtfully referred to this species the following notes 

 were made: Spots angular-suborbicular, limited by the veins, reddish 

 brown, 5-8 mm. in diameter; hyphae hypophyllous, fuligineous, assur- 

 gent to erect, often arising as branches from a superficial creeping 

 mycelium, sometimes branched, usually crooked and denticulate or 

 nodulose 25 — 60 x 3,u; conidia hyaline, attenuate from a point about 

 1G> above the base where the diameter of the conidium is greatest, 

 straight or more often somewhat curved, pluriguttulate, 50-125 x 3-4^. 

 On Spiraea salicifolia, Spooner, Wis., July 20th, 1911. 



Cylindrosporium thalictri (E. 6 E.) (C. ranunculi (Eon.) Sacc. forma 

 is borne on suborbicular spots which are" first red on the upper surface 

 becoming pale olive and finally sooty with the developing hyphae and 

 conidia. 



Cylindrosporium thalictri (E. & E.) C. ranunculi (Bon.) Sacc. forma 

 thalictri E. & E. Jonrn. Mycol. 3, 130 (1887). This seems to be dis- 

 tinct from the form on Ranunculus there - being no evidence that it is 

 a conidial state of Entyloma. The stroma from which the sporules 

 spring is often spherical and these masses are often gregarious and 

 crowded. Cylindrosporium demand's E. & E. with different spots and 

 epiphyllous acervuli can hardly be the same. I have not seen Septoria 

 thalictri E. & E. but judge from the description that it may not be 

 distinct from this. Journ. Mycol. ^: 49, (1888). 



Entomosporium maculatum Lev. var. domesticum Sacc. The speci- 

 mens that I have referred to this variety were collected in Burnett 

 Co. on mountain ash. The sporules are mostly 16-20 x 8-9/*. One col- 

 lection on Amelanchier spicata has sporules of about the same dimen- 

 sions. Specimens on quinces from the Madison market, obtained by 

 Mr. A. G. Johnson, show sporules 20 — 23 x 7 — 10/t. It is doubtful if 

 the variation in size is of any taxonomic significance. 



Oloeosporium fragariae (Lib.) Mont. My measurements of the spor- 

 ules of the fungus referred to this species range from 12-24 x 4-5/x. 

 It was collected at Spooner. 



Marssonina coronaria (Ell. & Davis) This is Asoochyta ooronaria 

 Ell. & Davis, 3rd supplementary list No. 580 and also Marsonia cor- 

 onariae Sacc. & Dearn. (Ann. Mycol. 10, S, 313.) 



Phragmidium diseifforum (Tode) James. The form on Rosa 

 blanda is Ph. americanum Diet, while that on Rosa woodsii (?) and 

 R. pratincola (?) is Ph. rosae-arkansanae Diet. Wisconsin is included 

 in the range of Ph. rosae setigerae Diet, which occurs on Rosa setigera 



