250 



THE ASCOMYCETES 



Corner (1930, 1930a) also studied the development of certain 

 stipitate discomycetes, including Mitriila pnsilla, Geoglossinn dif- 

 jorme^ Trichoglossinn hirsiitiim, and Microglossinn viride, the 

 last of which is angiocarpic, and the others gymnocarpic. The 

 shaft arises is a result of greater growth of the medulla than of 

 the cortical region. 



Correlation between size of apothecia, rate of development, 

 and duration of the period of ascospore discharge is shown in 

 data by Corner (1930) in Table 3. 



TABLE 3 

 Size, Age, and Sporing of Certain Discomycetes 



Diameter of Apotheciur?i {mm) 



Within the temperature range 14° C to 22° C these disk fungi 

 shed scores incessantly day and night. 



LITERATURE CITED 



Corner, E. J. H., "Studies in the morphologv of Discomvcetes. II. The 

 structure and development of the ascocarp," Trans. Brit. Mycol. Soc, 

 14:275-291, 1929. 

 m. "The clavulae," Trans. Brit. Mycol. Soc, i5; 107-120, 1930. 

 IV. "The evolution of the ascocarp," Trails. Brit. Mycol. Soc, IS: 121-134, 

 1930a. 

 Nannfeldt, J. A., "Studien iiber die Morphologic und Systematik der nicht- 

 lichenisierten inoperculaten Discomvceten," Nova Acta Regiae Soc 

 Sci. Upsalensis, Ser. IX, 8: 1-368, 1932. 

 Seaver, F. J., The North Aniericaji ciip-fiingi {Operciilates). 284 pp. New 

 York. Published bv the author, 1928. 

 The North American ciip-jiingi, Supplemented ed. 375 pp. New York. 

 Published by the author, 1942. 



