GENEEA HYPOCRELLA AND ASCHERSONIA. 523 



Hypocrdla. I have taken three species of Aschersonia on the 

 same leaf. 



It is not proposed to discuss the structure, &c., of these 

 genera here. One or two points may, however, be noted. 

 Apparently all species of Hypocrella and Aschersonia, though 

 brightly coloured at first, will blacken with age, independently 

 of the growth of Meliola or Capnodium on the leaf. This is 

 especially noticeable in the case of Lecaniicolous species. In' 

 the pale coloured Aleurodiicolous species several exhibit a 

 tendency to turn green, especially in or round the ostiola. 



Hypocrella ascospores, when mature, invariably break up 

 into short part-spores. Species said to have continuous 

 spores have been described from immature specimens, or are 

 not co-generic with Hypocrella discoidea. 



The following Hsts give the synonymy of the species 

 examined. I may take this opportunity of expressing the 

 hope that the possessors of the species Usted as " not seen " 

 will kindly see their way to loan specimens for examination, 

 and of stating that I shall always be glad to give an opinion 

 on any specimens of these genera which may be submitted to 

 me, and to return them as early as possible. 



Hypocrella. 



Lecaniicolse. 



Hypocrella palmae (B. & C.) Sacc, Syll. Fungorum, II., p. 580. 



Hypocrea palmse B. & C, Jour. Acad. Nat. Sci. Phila- 

 delphia, New Ser., II., p. 285 (1853) ; Hypocrella Spegaz- 

 zinii Sacc, Syll. Fung., II., p. 579, ex Speg., Fung. Arg. 

 Pug., IV. ; Hypocrdla guaranitica Speg., Fungi Guar. 

 /Pug., I., No. 256 ; Hypocrella filicina Rehm, Hedwigia 

 (1898), p. 200 ; Fleischeria paulensis v. Hohnel, Ergeb. 

 der Bot. Exped. der K. Akad. d. Wissensch. nach Sud 

 BrasiHen, 1901, Bd. 11., p. 21 (1907) ; Hypocrella globosa 

 Syd. non Rac, Ann. Myc, V., p. 359 (1907) ; Hypocrella 

 orbicularis Syd., in Theissen, Ann. Myc, IX., p. 67 (1911) ; 

 Hypocrella phyllophila Theiss., Ann. Myc, IX., p. 66 

 (1911) ; Hypocrdla amhiens Theiss., Ann Myc, IX., p. 68 

 (1911) ; Hypocrdla Sydowii Sacc. and Trott., Syll. Fun- 

 gorum, XXII., p. 503 (1913). 



