Pyrenomycetef<;, S|)h;Bri;ice£f3, Phreospori*>, Hypoxylon. 547 



cylindracei, hasi atlenuati, circiter 100 ^^1); sporidia rnonosticha 

 suhtjavicuhiria ve! acute ellipsoidea et iii.x'quilateralia, [iriino pal- 

 lide lutea, dein opaca, 1-2-nucIeata, 9-12 =; ;;,5-4,5 utrinque subacuta. 



Hah. in ramulis emortuis Quercus virescentis in Amer. 

 bor. — Afline H. fusco. 

 10. Hypoxylon Laschii Nits. — Syll. I, p. 356. ~ *H. Onnii Karst. 2223 

 Synih. Myc. XXII, p. 143. — Stroinatihus pulvinatis, hasi orbicu- 

 laribu5;, pcr p-M^idermiiua) tissuni erumpentibu.s ejusquo laciniis cin- 

 ctis, primitus extiis intus(jue ferrugineo -rufulis, deiu afcris; peri- 

 theciis sat minutis, periphericis, v(!rtice rotundatis, prorninulis, 

 maniniillosis, discretis : sporidiis ohlonf^^o-ellipsoideis, rectis v. plus 

 rninus infequilateralihus, dilute fuiigineis, eguttulatis, 7-11 - 3,5-4,5. 



llab. ad ramos corticatos Populi nigrce in horto mustia- 

 lensi Fennia! (Onni Karsten). 



17. Hypoxylon mbaiense Speg. Fungi Guar. Pug. l, n. 202. - v'.>4 

 Stromatihns matrice squarrulosule nigrofacta iusiiientibus, spar- 



sis vel paucis aggregatis, oligocarpis, rotundatis vol elongatis, pai*- 

 vulis, 1-3 mm. long., 0,5-1 mm. lat., pulvinatis. 0,5 inm. crass., 

 margirie ohtusato-determinatis. ruguloso-scrupulosis, subpruinulo- 

 so-asperis, prirao fuscescenti-atris, dein exfus intusquo atris; pe- 

 ritheciis 5-2()-aggregatis, globulosis, 100-150 .».. d., e mutua pressio- 

 ne angulosis, non v. vix prominulis, disco (si perspicuo) applanato 

 V. subumbilicato, ostiolo minutissimo, non visibill nec papillato 

 perforatis, subcarhonaceis, nigiis; ascis cylindraceis, apice i"otun- 

 datis, p. sp. 70-75 V 8-9, ped. 25-30 s 2-3, 8-sporis, parapliysi- 

 hus filiformihus, densissimis ohvallatis; sporidiis recte monostichis, 

 valide navicularihus v. rarius elli[)tico-rhornboideis, 10-i 1 ^ 6-7,5, 

 iitrinque obtusis. p)'imo olivaceis, pellucidis, crasse I-2-guttulatis, 

 dein opace fuligineis. 



Hab. ad truucos decorticatos putrescentes Quebrachia' Lo- 

 rent/. ii in silvis suhvirgineis prope Mbay Bras. — Species exter- 

 na facie formam depauperatani H. fitsci simulans, sed characteribus 

 internis pr«distincta. 



18. Hypoxylon dublosum Speg. Fungi Guar. Pug. I, n. 200. — Stro- oo.>r, 

 matihus majusculis, 5-10 mm. diam., solitariis vel aggregatis sse- 

 peque conHuentibus, heinisph;erico-pulvinatis, 5-0 mm. crass., am- 

 bitu rotundato-coarctatulis, iion vel vix repandulis, obsoletissime 

 ruguloso-papillosis, primo sordide grisoo-fuscis (pruina detersili oh- 

 ductis) dein (uudis) atris, intus fusco-griseis vel plumbeo-atris, ra- 

 diatim tibrosis, non vel vix sericeo-nitGiitibus; peritheciis periphe- 



