SPH^EIACEl. 903 



Sporidia ('001 in.) •025 m.tn. long. In an authentic specimen of Persoon's 

 the sporidia are triseptate, and slightly constricted (F.C.). The second joint 

 of the sporidia in the typical form is sometimes swollen. 



2711. Sphaeria agnita. Desm. " Hemp Agrimony Sphferia." 



Scattered, erumpent, soon naked ; perithecia minute, sub- 

 globose, flattened at the base, black, somewhat shining, seated 

 on an effused, greyish spot ; ostiola papillteform, pierced ; asci 

 elongated, stipitate ; sporidia fusiform, 5-6 septate, constricted 

 at the middle, pale yellow. — Desm. Ann. Sc. Nat. 1851, xvi. p. 

 313. Desm. exs. no. 713. Fckl. exs. no. 888. Cooke exs. no. 277. 

 Pleospora agnita, Fckl. Sym. Myc.p. 135. Leptosphceria agnita, De 

 Not. Schema. p. 61. 



On stems of Eupatorium cannahinum. 



2712. Sphaezia alliaziae. Awd. " Blackened Sphasria." 



Pycnidia. — Gregarious ; perithecia irregular, convex, soon 

 depressed and concave, rugose, black ; stylospores small, oblong, 

 with a sporule at each extremity. — Plioma lingam, Desm. Ann. 

 S.N. x.\. p. 2S1. Tode.u.p. bl,f.i6. Desm. exs. no. 1877. See 

 ante no. 1213. 



AscoPHORE. — Perithecia scattered over an indeterminate, 

 blackened spot, at length free, obtuse, black ; ostiola minute ; 

 asci somewhat clavate (nearly cylindrical) ; sporidia fusiform, 

 slightly curved, 3-5 septate, the middle dissepiment often a little 

 constricted. — Rahh. exs. no. 261. Cooke Seem. Journ. 1866./. 19. 

 Sphaeria maculans, Desm. Ann. Sc. Nat. vi. 184:6, p. 77. Fckl. exs. 

 no. 1793. Pleospora maculans, Tul. Carp. ii. p. 274. Fckl. Sym. 

 Myc.p. 135. Leptosphoeria maculans, De Not. Schema. p. 61. 



On stems of Erysimum alliaria, &c. 



The specific name of AUiari<B is retained, instead of maculans, previously 

 applied by Desmazieres, to prevent confusion with the »S'. maculans of 

 Sowerby. 



2713. Sphaeria complanata. Tode, " Flattened Spharia." 



Spermogoxia. — Scattered ; perithecia as in ascophore ; sper- 

 matia minute, hyaline, sim^^le. — Aposphceria complanata. Berk, 

 Outl. p. 315. 



Ascophore. — Scattered ; perithecia sub-globose, even, black, 

 soon collapsed, and then piano-depressed; ostiolumpapilleeform, 

 persistent ; asci cylindrical ; sporidia subfusiform, curved, mul- 



