808 SPH^RIACEI. 



ovato-globose ; sporidia fusiform, straight, uneqiiallj two-celled. 

 — Till. Carp. n.p. G7, t. ix. Berk. exs. no. 91. Fckl. exs. no. 1005. 

 Fr. S.M. ii. /;. 550. Eng. FI. v. p. 285. Fries exs. no. 100. Fckl. 

 Si/7n. Myc.p. 223. Sph. ribesia, Pers. Syn.p. 14. Moug. exs. no, 

 275. Nees.f. 312. Stromatosphccria ribesia^ Grev. Ft. Ed. p. 357. 



On dry branches of red currant and gooseberry. Common. 



[Mid. Carolina.] 



Sporidia •016--022 m.m. long, -0065 m.m. broad.— r^^. (Fig. 384.; 



2425. Dothidea rosae. Fr. " Eose Dothidea." 



Subrotund, erumpenti-innate ; stroma pale brown ; perithecia 

 globose, somewhat immersed, stuffed with white jelly ; sporidia 

 crowded, colourless, broadly almond-shaped. — Fr. S. V.S.p. 386. 

 Fckl. Sym. Myc.p. 223. Berk. exs. no. 32. Fckl. exs.no. 1008. 

 Cooke exs. no. 235. Sph. Dothidea, Fr. S.M. ii.p. 424. Eng. Ft. 

 V. 255. Fries exs. no. 308. Moug. exs. no. 971. Curr. Linn. 

 Trans. iixi\. t.4:9,f. 190. 



On living rose stems. 



Formirig irregular tubercles covered witb tbe epidermis, -vTlnch is cracked 

 with irregular flexuous fissures. Sporidia ('OOUZ-'OOOQ in.) •017-"02 m.m. 



2426. Dothidea striaefozmis. Fr. " Linear Dothidea." 



^ Covered with the innate blackened epidermis, atlength bursting 

 in the midst, lanceolate, short, acute ; perithecia in rows, mouth- 

 less ; sporidia? — Fr. S. V.S.p. 386. Sph. striceformis, Fr. S.M. 

 ii. p. 428. Fries, exs. 710. 195. Eng. Fl.Y.p.2hQ. 



On dead herbaceous stems. 



2427. Dothidea filicina. Fr. ** Bracken Dothidea.'' 



Speemogonia. — Elongated, irregular, even, black, marked 

 when perfect with an elevated longitudinal rib, at length sepa- 

 rating entirely at the base ; spermatia ? — Leptostroma Jilicinum, 

 Fr. Ohs.\.p.Vdl . Eng.Fl.\.p.2^1. Moug.exs.no. Al 6. Cooke 

 exs. no. 334. Sphceria jiteridis, Sow. t. 394,/. 10. 



AscoPHORE. — Subinnate, parallel, confluent, shining, black, 

 erumpent by parallel tissures ; stroma black ; cells connate, seri- 

 ate ; asci cylindrical ; sporidia elliptical, constricted, uniseptate, 

 hyaline. — Fr. S. V.S.p. 386. Cooke exs. no. 244. SphcBria filicina, 

 Fr. S.M. ii.^. 427. Eng. FI.y. p. 255. Berk. exs. no. S3. Fries, 

 exs. no. 48. Schm.exs. no. 202. Cooke Fern Book, p. 21,f. 8-10. 

 Rhopographusfilicinus, Fckl, Sym. Myc.p. 219. 



