SPH^EIACEI. 899 



2699. Sphaeria phaeosticta. Ber>.. " Dark spored sedge 



SphaBria." 



Gregarious ; perithecia globose, black, covered with, the 

 browned epidermis ; ostiola rather prominent, punctiform ; asci 

 linear; sporidia Terjdark brown, subcvmbiform. — Berk. Antarct, 

 Fl. Crypt, p. 59, t. 6S,f. 4. B. 4- Br. Ann. N.H. no. 651, t. UJ. 

 38. Curr. Linn. Trans, xxii. t. 59,/. 127. 



On Carex pendula. 



The sporidJa are brown ('0004 in.) •01 m.m. long. Perithecia minnte, 

 pnnctiform, seated beneath small bro^n spots, which are distinctly visible 

 to the naked eye. Asci at first short, and the sporidia pellucid, at length 

 the asci become linear, and the sporidia brown, with a large globose nucleus, 

 rarely a septum is formed after the sporidia have acquired their colour. 



C. Sporidia linear, \ijQ\inQ=( Raphidospora^ Be Not.) 



2700. Sphaeria rubella. Pers. " Red spot Sphgeria." 



Scattered ; perithecia erumpent, sub-depressed, at length 

 black ; surrounded by a red stain ; ostiolum conic ; sporidia 

 filiform, length of the ascus, colourless, or yellowish. — Pers. 

 Syn p. 03. Nees. f.'db?>. Berk. exs. no. 252. Cooke exs. no. 274. 

 Fr. S.M. ii. p. 506. Fries exs. no. 240. Fckl. exs. no. 1^1 . Eng. 

 Fl.y. ;?. 274. Todef. 72. Curr. Linn. Trans. :5ix[i.t. 59,/. 186. 

 Ba/jJiidospora rubella, Fckl. Syrn.Myc.p. 135. Leptospora rubella, 

 Eabh. exs. no. b32. 



On herbaceous stems. Common. [Low. & Mid. Carolina.] 



Easily known by the reddish or purple spot which covers the portion of the 

 stem on which the sphaeria is produced, and which sometimes stains the 

 perithecia. Sporidia (■0"7-*008 in.) *177-'2 m.m. long. 



2701. Sphaeria urticae. Rahh. " Nettle Sphasria." 



Perithecia scattered, or aggregated, black, covered bj the 

 cuticle ; ostiola erumpent, pierced, gaping ; asci cylindrical, 

 straight or curved ; sporidia the length of the ascus, filiform, 

 articulated, yellowish. — Rhapludospora urticce, Eabh.exs.no. 745. 

 Fckl. exs. no. 1759. Fckl. Sym. Myc. p. 125. 



On nettle stems. Shere. (Dr. Capron.) 



The mouth of the perithecium is large and open, looking like a minute 

 Peziza. There are no red spo'"S, as in .S'. ruhdla, which the fruit resembles, 

 but the perithecia differ considerably. Sporidia ('008 in.) "2 m.m. long. 



2702. Sphaeria acuminata. Soiv. *•' Thistle Sphgeria.'" 



Gregarious ; perithecia sub-immersed, ovate, black ; ostiola 

 erumpent, conical, acute ; sporidia linear, very long, at length 



