36 



Potentilla palnstris, Scop. 



Cercospora Comari, Pk. 

 Potentilla, Pennsylvania, L. 



f Aregma triarticulatum, B. & C. 



\Phragmidium triarticulatum, Farl. 

 Poterium Canadense, Benth. & Hook. 



f Erysiphe fuliginea, Lk. 



\ Sphaerotheca Castagnei, Lev. 

 Rosa acicularis, Lindl. 

 Rosa Arkansana, Porter. 



(Uredo miniata, P. 

 Phragmidium subcorticium, (Schrank) 

 Wint. 

 Rosa blanda. Ait. 



Phragmidium speciosum, Fr. 



) Aregma mucronatum, Fr. 

 Phragmidium mucronatum, Auct. Amer. 

 Coleosporium miniatum, Bon. 

 | Phragmidium subcorticium, (Schrank.) 

 L Wint. 



Rosa CaHfornica, Cham. & Schl. 

 Asteroma Rosae, Lib. 

 Diaporthe Rosae, B. & C. 

 Peronospora sparsa, B. 

 Rosa Carolina, L. 

 Cenangium Rosae, S. 

 Cercospora rosaecola, Pass. 

 Cytospora Rosae, S. Am. Bor. 

 Dacryomyces difformis, S. 

 Phragmidium subcorticium, (Schrank) Wint. 

 ( Sphaeria convergens, Tode. 

 -< Valsa convergens, Fr. 

 (Pseudovalsa convergens, Sacc. 

 Sphaeria palliolata, S. 

 f Sphaeria expers, S. 

 \Valsa expers, Cke. 

 Rosa, cinnamomea, L. 

 Cercospora rosaecola, Pass. 

 Diaporthe simulans, Sacc. 

 Rosa humilis, Marsh, 

 f Aregma speciosum, Fr. 

 \ Phragmidium speciosum, Fr. 

 f Uredo miniata, P. 



-I Phragmidium subcorticium, (Schrank) 

 ( Wint. 



Sphaerotheca pannosa, (Wallr.) Lev. 

 Rosa laevigata, Michx. 



J Sphaeria inordinata, B. & C. 

 t Cryptosphaeria inordinata, Sacc. 

 Rosa lucida, Ehrh. 



Phragmidium speciosum, Fr. 



{ Coleosporium miniatum, Bon. 

 Phragmidium subcorticium, (Schrank) 

 Wint. 



Sphaerotheca pannosa, (Wallr.) Lev. 

 Rosa nitida,\Vil\d. 



f Aregma speciosum, Fr. 

 \Phragmidium speciosum, Fr. 



ROSACEAE. 



Rosa rubiginosa, L. 



f Asteroma Rosae, Lib. 



j Dothidea Rosae, S. 



j Actinonema Rosae. Fr. 



[Phyllachora Rosae. Sacc. 

 Stictis glaucoma, B. & C. 

 Rosa Sayi, S. 



Phragmidium subcorticium, (Schrank) Wint. 

 Rosa, sp. indet. 



Asteroma geographica, Desrh. 

 Asteroma punctiforme, B. 

 Caeoma (Peridermium) germinale, S. 

 Coniothyrium Rosarum, Cke. & Hark. 

 Coryneum microstictum, B. & Br. 



/ Sphaeria fissicula, C. & E. 



\ Cryptosphaeria fissicola, Sacc. 



f Sphaeria rostellata, Fr. 



\ Diaporthe rostellata, Nits. 

 Diatrype incarcerata, B. & Br. 

 Diplodia Rosae, B. & C. 



f Diplodia rosaecarpa, Cke. 



\ Diplodia rhodocarpa, Sacc. 



(Hendersonia Rosae, Fr. 

 Hendersonia longipes, B. & C., forma Ro- 

 sarum, Cke. 



PHeydenia Americana, Sacc. & Ell. 

 Hypoxylon epirhodium, B. & Rav. 

 Leptothyrium Rosarum, Cke. 

 ( Sphaeria brachytheca, B. & C. 

 \ Metasphaeria brachytheca, Sacc. 

 f Sphaeria leiostega, Ell. 

 ! Metasphaeria leiostega, Sacc. 

 f Naemaspora erythraea, B. & C. 

 \Naemaspora erythrella, B. & C. 

 Perisporium speireum, Fr. 

 Peronospora sparsa, B. 

 Pestalozzia Guepini, Desm. 

 Pestalozzia suffocata, Ell. & Ev. 

 f Peziza umbilicata. B. & C. 

 \ Peziza Curtisii, Cke. 

 Peziza. Rosae, P. 

 Phragmidium mucronatum, var. America- 



num, Pk. 



f Sphaeria erratica, C. & E. 

 \ Physalospora erratica, Sacc. 

 Polyactis vulgaris, Lk. 

 Sphaerella rosigena, Ell. & Ev. 

 Sphaeria clypeata, Nees. 

 Sphaeria fissa. P. ? 



Sphaeria (Didymella) Rauii, Ell. & Ev. 

 Sphaeria Rosae, S. 

 Sphaeria saepincola, Fr. 

 Sphaeropsis Rosarum, C. & E. 

 Valsa Rosarum, DeNot. 

 Rubus Canadensis, L. 

 Ascochvta Rubi, Lasch. 

 Caeoma (Uredo) luminatum, Lk. 



