Pyrenomyceteae, Sphseriacese, Phseodidymse, Didymosphseria. 731 



scule membranaceo ; ascis cylindraceis, 50:^7, in basim stipitifor- 

 mem abrupte coDtractis ; .sporidiis monostichis, ellipsoideis, 1-septa- 

 tis, brunneis, 6-7::; 4. 



Hah. in cortice epidermide orbato ramorum Quercus emortuae 

 Newfield N. J. Arner. bor. — A Did. Cupula peritheciis haud colla- 

 bentibus, sporidiis minoribus etc. diversa. 



12. DidymosphaBria accedens Sacc. in Fairm. Contr. Myc. West. N. 2989 

 Y. p. 48, t. IV, f. 12. — Peritheciis gregariis, tectis, '/^'Vs '^"^- 

 lat., ostiolo breviter papillato, erumpente, nucleo prirao albo; ascis 

 tereti-clavatis , 120::; 10; paraphysibus obsoletis ; sporidiis senis 

 octonisve monostichis, ellipsoideis, utrinque rotundatis, 1-septatis, 

 leviter constrictis, 20-22 ::; 11, fuligineis. 



Hab. in ramis eraortuis arborum quarumdam (Fraxini?), Ljn- 

 donville N. Y. Amer. bor. — Aftinis D. Rhamni et D. incarce- 

 raicv, ostiolo ascisque diversa. 



13. Didymosphaeria buxina Passer. Diagn. Fung. Nov. IV, p. 4. — Peri- 2990 

 theciis sparsis, tectis, per corticem fissum erumpentibus, atris; ascis 

 paraphysatis, clavatis, S-sporis, 60-75 3 15-17; sporidiis distichis 



V. oblique raonostichis, ovato-oblongis, medio septatis, vehementer 

 constrictis, utrinque subacutis, loculis inasqualibus araple guttulatis, 

 primo luteis, tandera fuscis, 17,5-20 s 7,5-8. 



Hab. in ramulis emortuis Buxi sem per v iren tis, Vigheffio, 

 pr. Parma Ital. 



14. Didymosphaeria producta Sacc. et Paol. in Sacc. Myc. Sib. p. 13, 2991 

 f. 10. — Peritheciis sparsis gregariisve, initio epidermide velatis, 

 mox subsuperficialibus, e globoso lageniformibus, atris, 1/3 mm. 

 diam., in ostiolura perithocium subyequans v. brevius, cylindraceo- 

 conoideum, apice obtusiusculura productis; ascis fusoideo-clavatis. 

 utrinque obtusiusculis, subsessilibus, 65-70 is 9- 1 1 , ; paraphysibua 

 filiformibus, copiose obvallatis ; sporidiis oblongo-fusoideis, inaequi- 

 lateralibus, utrinque obtusulis, raedio constricto-uniseptatis, dilute 

 olivaceis, 4-guttatis, 22-26 »5-6. 



Hab. in caule Lonicerae coerulese in silvis pr. fluv. Cha- 

 byk Sibiria (Martianoff). — Ad genus Rhynchostoma vergit. 



15. Didymosphaeria atro-grisea Cooke et Peck, Grevill. XVII, p. 92. — 2992 

 Peritheciis sparsis, convexis, cortice iramersis, cuticula grisea te- 

 ctis, demum ostiolo atro erurapentibus; ascis cylindraceis 8-sporis; 

 sporidiis monostichis, eilipticis, uniseptatis, fuscis 15:^8. 



Hab. in cortice Quercus albse, New York (Peck) et Pough- 

 keepsie Amer. bor. (Gerard) — « Ao Arnphisphceria? •», 



