906 SPHJERIACEI. 



On dead stems of Ej^ilohium hirsutum. 



At first covered by the cuticle, then exposed, half immersed ; perithecia 

 subglobose, with a papillaoform ostiolum ; asci cylindrical ; sporidia oblong 

 ('OOOfi-OOOrin.) "OIS-'OIZ m.m, long, containing three nuclei, and with two 

 constrictions. 



2721. Sphaeriatriglochinicola. Ciirr. " Triglochin Sphasria." 



Perithecia minute, subglobose, situate beneath the epidermis, 

 which is pierced by the papillate ostiolum; sporidia biseriate, 

 triseptate, oblong in a front row, curved in a side view, constricted 

 at the septa, yellow. — Curr.Linn. Trans, xxiv.^. 158,^. 25,/. 15. 

 B. ^ Br. Ann. N.H. no. 1100. 



On carpels and stems of Triglochinpalustre. Oct. Near Ring- 

 mer, Sussex. 



Sporidia (*0015 in.) '035 m.m. long, varying slightly. 



2722. Sphaeria Thwaitesii. B. d: Br. " Thwaites's Sphseria." 



Perithecia minute, convex, flattened at the base, mycelium of 

 very delicate ieruginous threads traversing the matrix; asci cy- 

 lindrical ; sporidia oblong-clavate, slightly curved, obtuse, with 

 four endochromes. — B. 4' Br. Arm. N.H. no. G16, t. 11,/. 32. 



On stems of Umhelliferce. Jan. Bristol. 



Perithecia minute, convex above, flattened below, arranged in short lines, 

 seated on the woody fibres, which are traversed and covered with very deli- 

 cate anastomosing veidigris green threads ; asci cylindrical or subclavate, 

 rather short ; sporidia biseriate, oblongo-clavate, obtuse at either extremity, 

 slightly curved, containing about four endochromes ; in some instances naked, 

 oblong, slightly curved spores, with five endochromes, the gelatinous mass 

 having a pale sea-green tint.— ^. ^' Br. 



2723. Sphaeiia echinella. Cooke. " Hedgehog Sphaeria." 



Gregarious, subcuticular ; perithecia globose, black, covered 

 with short, rigid black hairs slightly raising, and piercing the cu- 

 ticle ; ostiola obtuse ; asci cylindrical ; sporidia uniseriate, 

 straight or slightly curved, triseptate, constricted, pale-brown. — 

 Cooke exs. no. 267. 



On stems of Atriplex, &c. Kentish Town. 



The perithecia often become exposed by the shelling off of the cuticle, col- 

 lected in patches of two or three inches in length, but not crowded ; wholly 

 or partially surrounding the stem ; the cuticle is slightly raised, and punc- 

 tate with the black ostiola. Sporidia closely resembling those of S. pulviS' 

 pyrius. 



