162 



Mycologia 



MoUisia, to which Cooke and Ellis referred this plant, seems 

 to have been first used as a generic name by Karsten (1871), who 

 includes 28 species, a considerable number of which he regarded 

 as new. Peziza cinerea Batsch might perhaps be chosen as the 

 type of MoUisia, as it is one of the common species included by 

 Fries in his subgenus of the same name and is included in the 

 first section by Karsten and Rehm. It is very doubtful, however, 

 whether M. cinerea is congeneric with Pezizella lythri. Some 

 idea of the confusion which exists in these genera may be derived 

 from Von Hohnel's statement (1919) in regard to Pezizella. He 

 says that his investigation of over 50 species, which have been 

 referred to this genus, shows that they represent 23 different 

 genera ! As he does not specify to which of these 23 genera our 

 species, P. Oenotheras, belongs, we shall leave it for the present 

 where Saccardo placed it, only adopting as the specific name the 

 oldest one applied to any stage of the species so far as at present 

 known. 



Synonyms 



The synonymy of each stage of the fungus is given below, also 

 the exsiccati which have been cited and examined, the various 

 illustrations which have been published and the distribution and 

 hosts so far as at present known. 



In connection with distribution and hosts it seems somewhat 

 remarkable that so few collections of any of the three stages of 

 this fungus should have been made or reported heretofore in this 

 country; and especially in view of the variety of hosts upon which 

 it occurs and its abundance the past season in several widely 

 separated localities. This indicates quite forcibly the scantiness 

 of our knowledge of our mycological flora and the great need of 

 more systematic collection and study before we can hope to know 

 what species occur or their distribution as to localities or host 

 plants. 



PEZIZELLA LYTHRI (Desm.) n. comb. 



I. Conidial Stage, Hainesia lythri (Desm.) v. Hohn. 

 r. Dacryomyces lythri Desm. PI. Crypt. France No. 1545. 1846. 

 2. Sphaeronema corneum C. & E. Grev. 6: 84. 1878. 

 *3. Gloeosporium? tremellinum Sacc. Michelia 2: 168. 1880. 

 4. Gloesporium? rhointtm Sacc. Fungi Italici, PI. 1035. Jl. 1881. 



