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



large sporidia. The perithecia are by no means seriate, and the 

 connecting cellular matter can scarcely be considered a stroma. 

 The sporidia are totally different from those of 8. inquilina, with 

 which the species may perhaps be compared. 



Plate XII. fig. 35. a. Asci andparaphyses; b. sporidium; c. mycelium. 

 All more or less magnified. 



*S. nigrella, Fr. Obs. i. t. 4. fig. 2. On Angelica sylvestris, 

 King's Cliffe. 



We have exactly similar specimens from the south of France, 

 gathered by Dr. Montagne, and which had been submitted to 

 the inspection of Fries. 



650. S. (Foliicolse) sabuletorum, n. s. Sparsa tecta; peritheciis 

 subglobosis demum collapsis ostiolis pertusis; ascis amplis cylin- 

 dricis sporidiis fusiibrmibus nodulosis. On dead leaves of Am- 

 mophila arundinacea, Sands of Barrie, Mr.W. Gardiner, May 1845. 



Perithecia scattered, concealed, with the exception of the per- 

 tused ostiolum, subglobose, at length collapsed. Asci large, 

 rather short, cylindrical, very obtuse. Sporidia at first globose 

 or obovate, uniseptate ; eventually one joint produces three endo- 

 chromes and the other four, the fourth being seated in the centre 

 of the compound fusiform sporidium, and much larger than the 

 rest. There is a constriction between each endochrome. Other 

 sporidia may be found more or less distorted ; sometimes a partial 

 disruption takes place at the primitive articulation, and the axes 

 of the two portions make an obtuse angle with each other. In 

 the young spores the centre of the dissepiment is often thrust 

 forward into one of the cells, generally the larger, so as to call 

 to mind the analogous phenomenon in Zygnemata. This is 

 perhaps the finest of all the graminicolous species. 



This species occurs on the specimens published under No. 1288 

 by M. Desmazieres as S. per for am, Iloberge. The sporidia of 

 that species are described as elliptic, bilocular and hyaline. We 

 do not find that species on the grass, but the present and three 

 other genera, amongst which is our Eriospora, which does not 

 appear hitherto to have been observed in France. 



Since the above was written, we have received a specimen of 

 S. perforans from M. Desmazieres which contains fruit agreeing 

 with his description, and unmixed with our S. sabuletorum, 

 which cannot be distinguished without microscopical examina- 

 tion. There is a certain resemblance in the very early state of 

 the sporidia, but S. perforans stops where S. sabuletorum begins. 

 Amongst the specimens of Ammophila studded with Cryptogams, 

 received from Mr. Gardiner, is a minute lichen, apparently Bia- 

 tora vernalis (Lecidea sabuletorum, Moug. and Nest.), which ex- 

 hibits conidia seated on the tips of the paraphyses. Something 



