758 RECORD OF CURRENT RESEARCHES RELATING TO 



of tlic Spliceria Desmazieri, describe this inner membrane as being 

 furnislied with an oblong process at the tip ; and it is this " oblong 

 process" which M. Crie has mistaken for an amylaceous substance. 

 When first formed it is in intimate connection with the membrane of 

 the ascus, and remains attached to it after the formation of the spores ; 

 the narrow neck which unites them becomes thicker, so that the 

 corpuscle, at first spherical, becomes pear-shaped. The same struc- 

 ture, with slight variation, was observed in two allied species, Bosellinia 

 Aquila and B. Thelena. 



Cellules en boucle.* — The peculiar cells found in some fungi and 

 known as " cellules en boucle " or " Schuallenzellen," already de- 

 scribed by Hoffmann and de Bary, have received further attention from 

 M. de Seynes. 



They are distinguished by the presence of a rounded appendage 

 placed here and there on their external wall. This is a cylindrical 

 cellular formation, very short and of small diameter, proceeding from 

 the cell below a septum, and united with it either in its entire 

 length or only by its summit. The cavity of this small cellular 

 excrescence usually remains in communication with that of the cell 

 from which it emanates, but is sometimes separated by a septum. 

 The writer believes these structures to be simply an arrested con- 

 dition of cells in the act of multiplication. They are well shown in 

 the pseudo-parenchyma of the receptacle of Fistulina. 



Anthracnose of the Vine.t — M. Cornu gives a full description of 

 the disease of the vine known as "anthracnose," from the neighbourhood 

 of Narbonne, where it is committing great ravages. The cause of the 

 disease is a fungus considerably smaller than the oidium, but committing 

 even greater devastation. It appears to be strictly annual, and makes 

 its appearance on the green organs during the season of fine weather. 



Ascliotricha.l — M. Bainier describes two species of Aschotricha 

 grown on damp linen. 



The first is very abundant and of an elegant appearance. In the 

 centre are the naked asci ; at first elongated, subsequently round, and 

 so small as to be difficult to distinguish. Each contains eight smooth 

 ascospores, oblong and yellow when mature. Dispersed among the 

 asci are paraphyses, black filaments, the extremities of which are 

 finally transformed into a segmented club-shape. The paraphyses 

 branch and anastomose. The conidia have no special su^jports. 



The second species, less common and often much smaller, is dis- 

 tinguished at first sight by the absence of the club-shaped extremities 

 of the paraphyses, which also do not anastomose. The conidia are 

 not round, but have somewhat the form of little corkscrews. 



Development of Sclerotia.§ — M. Cornu has followed out the re- 

 searches of Tulasne and Leveille as to the part played by the " sclero- 

 tium " in the development of certain fungi, confirming on the whole 

 the previous observations. 



* ' Bull. Soc. Bot. France,' xxv. (1878) p. 95. 

 t Ibid., p. 227. X Ibid., p. 245. 



§ Ibid., p. 176. 



