HYPOCRELLA AND ASCHERSONTA. 171 



Nine species were listed by Saccarclo in Sylloge Fungorum, 

 III., p. 619 (1884), eight of which had been described as 

 Aschersonia, while the other was a transference from another 

 genus. A. guianensis was omitted. By the year 1900 the 

 number of species had increased to twentj'-six, but- it is 

 rather remarkable that Montagne's erroneous description 

 still held the field. Lindau, for example, in Engler-Prantl, 

 Naturlichen Pflanzenfamilien (1900), gives merely a transla- 

 tion of Saccardo's description, stating that the stroma is at 

 first covered by a fugacious veil, and adding that the spores 

 have inconsj)icuous septa. During the current century the 

 description of new species has proceeded at a more rapid rate, 

 and the total recorded up to the end of 1919 is sixty. 



Hypocrella. 



Species co -generic with those which are now included in the 

 genus Hypocrella were assigned by the earlier mycologists to 

 Hypocrea. Saccardo in 1878 (Micheha, I., p. 322) spht off the 

 genus Hypocrella and placed in it Hypocrea discoidea B. & Br., 

 Hypocrea Bamhusse B. &. Br., Hypocrea airamentosa B. & C, 

 and Hypocrea semiamplexa Berk. The new genus was briefly 

 characterized as " Stroma et perithecia Hypocreacese. Asci 

 octospori (?), sporidia filiformia." In Sylloge Fungorum, 

 II., p. 579, a fuller description was given : — 



" Hypocrella Sacc, Micheha, I., p. 322. Stroma carnulo- 

 sum pulvinatum v. disciforme, v. subeffusum, Iseticolor v. 

 fuscescens : perithecia stromate immersa v. semiimmersa. 

 Asci cylindracei octospori, sporidia filiformia ascum subse- 

 quantia, subinde in articulos dilabentia. Genus EpicJiloi 

 affine, stromate baud armillari diversum." 



Ten species were included in the genus in Sylloge Fungorum, 

 II. (1883). By the year 1900 this had been increased to 

 about thirty, and at the present time (1919) the number 

 of species recorded is seventy (including FUischeria and 

 Moelleriella). 



Lindau, in Engler-Prantl, Naturlichen Pflanzenfamilien, 

 gave practically the same generic description as Saccardo. 



