Rev. M. J. Berkeley and Mr. C. E. Broome on British Fungi, 325 



Our plant agrees with that of Leveille in external appearance 

 and in the spores, but differs simply in being far smaller, a cir- 

 cumstance probably attributable to its growing on the thin leaves 

 of a grass instead of the juicy stems of a large Juncus. 



We have also the same thing on dry withered stems of Juncus 

 conglomeratus gathered at Draycott, Wilts, in which the spo- 

 ridia are sometimes but not always more elongated, though es- 

 sentially the same in colour and form. 



We have placed the species here rather than in Caulicola, on 

 account of its near relation to >S^. clypeata. 



Plate XL fig. 17- a. Ascus; b. sporidia. More or less magnified. 



634. >S^. (Obtectse) revelata, n. s. Tecta, globosa, major, ostiolis 

 brevibus papillaeformibus sero expositis ; ascis linearibus flexuosis ; 

 sporidiis uniserialibus oblongis biseptatis. On branches of lilac, 

 Apethorpe, Jan. 1848. 



At first completely concealed beneath the rough bark, and at 

 length only manifest from the ostiola thrusting off little patches 

 of the matrix, and then appearing solitary or scattered on white 

 spots. Perithecia globose, large ; ostiolum papillseform, distinct. 

 Asci linear, flexuous ; paraphyses long, slender ; sporidia unise- 

 riate, oblong, hyaline, biseptate, with very distinct endochromes. 



We have a form of this species on twigs of elder gathered at 

 Apethorpe, Nov. 1840, in which the ostiola are conical and much 

 more developed, and the perithecia smaller. The asci and spo- 

 ridia agree perfectly. 



Another form occurs on Chionanthus virginica, and something 

 very similar on lilac has been gathered by Dr. Leveille at Ro- 

 mainville. 



Plate XI. fig. 18. a. Aseus and paraphysis; b. sporidia. More or less 

 magnified. 



635. S. (Obtectse) conformis, n. s. Tecta sparsa; peritheciia 

 nigris globosis demum coUapsis ostiolo papillseformi ; ascis sub- 

 clavatis ; sporidiis biserialibus oblongo-ellipticis utrinque obtusis 

 biseptatis. On dead twigs of alder, mixed with S, ditopa. 



Resembling closely S. ditopa, but differing in the small 

 number of sporidia contained in each ascus, which are also 

 broader and more obtuse, and exactly resembling those of S, 

 fuscella. 



Plate XI. fig. 19. a. Ascus; b. sporidia in various stages of growth. 

 All more or less magnified. 



636. S, (Obtectse) fuscella, n. s. Sparsa tecta ; peritheciis 

 fuscis depressis ; ascis linearibus obtusis ; sporidiis uniserialibus 

 oblongo-ellipticis quandoque curvulis triseptatis. On dead twigs 

 of rose, Easton, Norths., March 9, 1850. 



