Rev. M. J. Berkeley and Mr. C. E. Broome on British Fungi. 373 



Sphceropsis at an early stage of growth, it requires some caution 

 in assigning the genus where the spores present the usual type 

 of the young spores of Diplodia. 



412. D. consors, n. s. Peritheciis gregariis tectis ; epidermide 

 polita nigrefacta centro dehiscente albida ; sporis minoribus ob- 

 longis. Growing on the same leaves with D, tecta^ but gene- 

 rally in distinct patches and equally common. 



Forming broad patches, Perithecia covered, indicated by 

 small shining black dots which open in the centre by an irre- 

 gular orifice, the edges of which are white. Spores only two- 

 thirds of the length of those of D. teda, oblong-elliptic, uni- 

 septate. 



The two species are extremely common, but we cannot find 

 any notice of them. 



413. Hendersonia 7nacrosporaj n. s. Peritheciis omnino tectis; 

 sporis rectis anguste lanceolatis 5-8-septatis. On dead twigs of 

 Philadelphus coronariuSy Apethorpe, Oct. 1848. 



Entirely concealed by the cuticle, which is very slightly raised. 

 Perithecia globose. Spores narrowly lanceolate, 5-6-septate. 



Distinguished by its concealed habit and long fusiform spores. 



413*. H. arcus, n. s. Peritheciis denudatis globosis, sub mi- 

 croscopio chalybeis ; sporis arcuatis medio incrassatis 3-septatis. 

 On box twigs, Batheaston, C. E. Broome. 



Perithecia globose, at length naked, subgregarious, black, but 

 when seen by transmitted light steel-blue. Sporophores branched; 

 spores elongated, curved, swollen in the centre, attenuated at 

 either extremity, hyaline, triseptate. 



Resembling closely in form and colour Spharia pulicaris, with 

 which it often grows. The fructification is however totally dif- 

 ferent, and can scarcely be a transformation of the asci of that 

 species. 



414. H. mutabilis, n. s. Pustulis depresso ellipticis intus cel- 

 lulosis sporis oblongo-ellipticis 3-4-septatis articulis hie illic 

 longitudinaliter divisis. On dead twigs of plane, Batheaston, 

 C. E. Broome. 



Pustules small, scarcely bursting the cuticle, elliptic, black, 

 with a few central cells besides the large cell or perithecium, 

 which occupies the whole of the pustule. The central cells are 

 developed later than the main cell, so that the spores in the 

 former are simple or uniseptate, while in the larger cell they 

 have acquired a much larger size, and have three or four trans- 

 verse septa with the articulations here and there divided. 



A section with the central cells and the large one surrounding 

 them filled with spores in difi'erent stages of development pre- 

 sents a very curious appearance under the microscope. 



