384 Rev. M. J. Berkeley and Mr. C. E. Broome on British Fungi. 



joints, at lengtli ejected and forming a brown border to the 

 ostiolum. Sometimes the two cells of the sporidia appear like 

 two apposed cones. The appeadages seem to be continued from 

 a delicate outer membrane, and sometimes both point in one 

 direction, sometimes in two, so as to give the sporidia a sigmoid 

 outline. 



Plate XII, fig. 39. a. Ascus ; h. sporidia. Both more or less magnified. 



^S. Artocreas, Tode = Discosia clypeata, De Notaris. We have 

 also from Aberystwith, gathered by Mr. Balfs, and from Appin by 

 Capt. Carmichael, a species of Pilidium, which does not differ, as 

 far as we can see, from P. disseminatum, Lib., a synonym w^e be- 

 lieve of P. acerinum, Kze. Our plant occurs on oak leaves. 



655. S. (Foliicolse) carpinea, Fr. Syst. Myc. vol. ii. p. 523; 

 Desm. ! no. 981. On dead leaves of hornbeam, Lucknam, Wilts. 



Asci subclavate; sporidia biseriate, broadly and shortly cymbi- 

 form, the least curved side being a little hollowed out towards 

 either apex. 



Plate XII. fig. 41. a. Ascus; b. sporidia. Both more or less magnified. 



656. S. Pteridis, Desm. PI. Crypt, no. 1295. S, Litura, Berk. 

 MSS. (olim). *^Epiphylla maculis parvis griseis vel nullis ; pe- 

 ritheciis minutis globosis sparsis vel subaggregatis, epidermide 

 tectis; ascis clavatis.^^ 



= S. punctiformis, b. Pteridis, Fr. Scl. Suec. no. 86. 



*S^. (Foliicolse) Brassic(e= Asteroma Brassicce, Chev. Par. vol. i. 

 p. 449. 



Nothing can be more common than this on cabbage-leaves in 

 autumn and spring, but it is not often found with perfect fruit, 

 which places its true characters beyond doubt. 



Plate XII. fig. 42. a. Asci ; b. sporidia. Both more or less magnified. 



657. S. Eryngii, Fr. in Duby, Bot. vol. ii. p. 710 ; Desm. ! PL 

 Crypt, de France, no. 1300. On dead leaves of Eryngium, Pen- 

 zance, J. Balfs, Esq. 



658. S. (Foliicol^) Rumicis, Desm. PI. Crypt, no. 1298. S. 

 lichenoides^ Johnst. Fl. Berw. vol. ii. p. 131. "Maculis am- 

 phigenis, minutis, numerosis, orbiculatis, sparsis, brunneis, viri- 

 dulo-cinctis. Peritheciis epiphyllis, conglomeratis, innato-pro- 

 minulis, perexiguis, globoso-depressis, collabescendo concavis, 

 olivaceis, dein nigris, poro simplici pertusis. Ascis amplis, tubu- 

 losis, parum curvatis. Sporidiis olivaceis ovato-oblongis obtusis 

 uniseptatis.''^ 



Abundant on dock-leaves, Twycross, Rev. A. Bloxam ; Berwick, 

 Dr. Johnston ; Penzance, J. Balfs. Esq. ; Bristol, H. 0. Stephens, 

 Esq. 



