004 Dothideaceae, Hyalosporye, EMtyllacliora. 



18. Phyllachora Tiitici gracilis (Cast.) Saco. Sphceria Triiici gra- 5138 

 cilix Casf. Mont. Aoii. scieuc. nar, 11. 1849, p. 43. — Epidermide 

 atrata innato-tecta, peritheciis uaiserialibus (4 ad G) raro plu>\- 

 seriatis minimis albo-farctis stromati fusco inirnersis, ostiolo albo 

 vix manifesto instructis; ascis tenuibus cylindraceo-clavulaiis, 27 s3 

 undique ad centrum versis, sporidia octona subglobo^a foventibus. 

 Hab. in foliis adhuc vivis Tritici gracilis, pr. Marseille 

 Gallia: (OastactKb). 



40. Phyllachora fuscescens Speg. F. Arg. Pug. L, pag. 184. — Stro- rj i:;o 

 matibus dense gregariis, linearibus l-I'/ 2 mill. lo.ig. VnrVs n)l ^- 

 lat., atris, in utraque foliorum pagina prominulis: peritheciis pau- 

 cis minutis; ascis cyliudraceo-clavatis, octosporis, 60-65^10-12, 

 paraphysibus filiformibus obvallatis; sporidiis distichis, ellipticis, 

 utriuque acutiuscule rotundatis, 1-magni guttulatis, 12 ^ 6-7. fu- 

 raosis. 



Hab. ad folia viva vel languida Agrostidis speciei c\jus- 

 dam a San Jose de Flores, Argent. America boreali. — Affinv 

 Ph. Graminis. 



50. Phyllachora Muhlenbergiae (Ellis) Sacc. Dolhidea MvJUenbergice 5l40 

 Elhs in Bull. Torr. Cl. 1881, pag. 74. — Stroaiate tuberculoso, 

 rugoso, initio epidermide tecto, ;cepius cor-fluendo seriato; ostiolis 

 papillatis, latiuscule pertusis; ascis cylindraceo-clavatis, ootosporis, 

 60-64 s 17-18; sporidiis biseriatis, oblougo-eliipsoideis, 20 & 6,5- 



7,5 prope medium tenuite v cori3tr'otis, 4-nncieatis, hyalinis. 



Hab. m culmo pntresc^nte Muh lenbe rg*i eo \ T ew Jersey 

 (Ellis). — <( An potius stirp^ Spkieriacear ; perithecia satis enim 

 discreta in exemplariUis Ellisianis observavi >. 



51. Phyllachora ganu/cena (Fi ) Fuok. Symb. myc. p 217, Sphceric 5141 

 gangrcena Fr. iD bubv C>ot. Gall. 'I, 6L>5, Sphrerel f, x panyrcena 

 (Fr.) Karst. myc. Fenn. II, p. 185. — Peritheciis (localis 1 ?) disrin- 

 etis seriatim dispositis, epidermide mcrassata, negrefacta, nitenie 

 tectis maculasoue nigras calmos et folia ssepe ambientes forman- 

 tibus, sphseroideis, siccis, collapsis, ostiolo papilH+o, prominulo, 

 atris, latit. l^O .. ; ascis sessilibus, elongato-olavatis, utrinque at- 

 tenuatis, 10 50 10-12, octosporis; sporidii; conglobatis. aciculan- 

 elongatis, guttulatis vel spurie tenuiter 2-septatis, chiorino-hya, 

 linis, 16-25x3,5-4,5; paraphysibus aullis. 



Hab. in foliis culmisque raorientibus gi-aniiiium. poiissimum 

 Poarum. e. g. P, bulbosre, pratensis, nemoraiis, in Fen- 

 nia, Belgio. Germania. Gallia, Helvetia, in loUls tsolepidis ca- 



