429 



Dothiorella sphaeroides corresp. to Dothiora sphaeroides. 



— pyrenophora var salicis — salicis (Vleugel). 



— juniperi — Clithris juniperi (Karsten). 



— ribis — Dothidea ribesia. 



— advena — Botryosphaeria advena (see 



V. Hohnel U a''*). 



— Berengeriana — — Berengeriana(Sacc.). 



— corylina — Otthia corylina (see Karsten 90 ''^'). 



— populicola — — diminuta. 



— populina — — populina. 



— frangulae — Cucurbitaria rhamni (see Jaap 



exsicc. no 542). 



— gregaria — Physalospora gregaria (Saccardo). 



2229. Dothiorella pitya Sacc, Syll. Ill ^'\ All. VI ^^ c. icon. 

 On the twigs of Abies alba. J. Klokkedalen (s/b 02!). 



2230. Dothiorella populina Karsten, Syll. X "^ All. VI ^^\ 

 Populus deltoides. B. Almindingen. 



2231. Dothiorella sphaeroides (Fries) R 02 a, Syn: Dothidea 

 sphaer. Fries S. M. II ^^'^, Dothiora sphaer. Cooke, Botryodiplodia 

 sphaer. Sacc, Syll. IIP", All. WU'^\ Dothiorella populea Sacc, Syll. 

 Ill "^ All. VI =2^ 



It must be noticed that Persoon and Fries have described this spe- 

 cies as having occurred on Populus, but on account of a misprin- 

 ting (ash instead of asp) Cooke has caused Saccardo and others to 

 believe that this fungus should live on Fraxinus. 



Rostrup has described the ruinous attack of this fungus on Populus 

 particularly in the years 1880—83; still he does not ascribe the whole 

 damage to the fungus, but he also believes that the weather must be 

 blamed for the destruction of the Italian poplars (R 83 c). 



Sporidiis ovatis, hyalinis 9—13 ^' X 5—7 t^. 



Populus tremula. F. Klingstrup. Populus laurifolia. F. Tange Skov; S. Char- 

 lottenlund. Populus pyramidalis, common. 



2232. Dothiorella gregaria Sacc, Syll. Ill "^ All. VI ^''°. 

 Populus alba X tremula. S. Helene Kilde. July. 



2233. Dothiorella betulae (Preuss) Sacc, Syll. Ill ^^\ All. VI ^^^ 

 Syn : Dot. pyrenophora (Karsten) Sacc, f. betulae Karsten 84 a, Syll. 

 Ill 238 



Sporidiis ellipsoideo-lanciformibus, rectis, hyalinis, eguttulatis, 7—8 P- 

 X 2-3 1^. 



Betula alba. J. Aal. (May 99 E. W.). 



