435 



The systematic place of Py- 

 renochaeta is very disputed, 

 I will therefore place it here 

 as an appendix to Sphaerioi- 

 daceae-Hyalosporae. 



2292. Pyrenochaeta fur- 



furacea (Fries) Rostrup 02 

 a ^^^ c. icon., Syn: Periola 

 furf. Fries El. II *\ Syll. 

 IV "^"^ 



Under the specific name 

 given above a fruit decay of 

 apples has become described 

 by Rostrup. The pycnidial 

 pustules may appear within 

 a small circular spot and later 

 on spreading until the whole 

 apple may be involved (see 

 fig. 32). The pycnidia are 

 erumpent and they appear in 

 cross section somewhat de- 

 pressed-conical at the apex. 

 The spores are elliptical, hyaline and measure 8—10 



Rare. Kebenliavn. March. 



Fig. 32. Pyrenochaeta furiuracea 



(Fries) Rostrup. 



An apple with pycnidia. From R 02 a. 



4-5 f^ 



Sphaerioidaceae — Phaeosporae. 



Coniothyrium. 



Some species of Coniothyrium would seem to be imperfect stages 

 of Leptosphaeria; and others have been found associated with still 

 other ascigerous forms, vize: 



corresp. to Leptosphaeria coniothyrium (see 

 Fuckel and Stewart 10 '"). 

 Leptosphaeria vagabunda (Sacc). 

 — castagnei (Fuckel). 



Charinia diplodiella. 

 Letendrea eurotioides ( All.VIP^). 

 Trichosphaeria sacchari. 



Coniothyrium Fuckelii 



vagabundum 



castagnei 



diplodiella 



eurotioides 



melaspora 



2293. Coniothyrium epimyces Sacc. & Speg., Syll. Ill ^i^, All. VI ". 

 Aleuria aurantia. S. Vestre Kirkegaard C^/io 05 O. R.). 



