Sphseriacese, Allantosporae, Diatrypella. 201 



• mrruGceformis Ehrh., Sph. Avellance Pers, — Stromate perithe- 

 cigero per periderraiuni arctissime adhaerens varieque laceratum 

 erumpente, plus minus irregulari, verruciforrai, grandiusculo, cras- 

 so, fusco-atro vel atro-ferrugineo, dein atro intus albido, discreto, 

 connato vel in crustam insequalera, rugosara, crassara confluente, 

 1-6 mill. latit. ; peritheciis 6-50 in quovis stromate, distichis vel 

 raonostichis dense stipatis, ovoideis vel subsphperoideis, fuligineis, 

 ostiolis prominulis vel latentibus, obtuse conicis, integris vel sub- 

 radiato-stellatis ; ascis cyiindraceo-clavatis, longe pedicellatis, 100- 

 120 ij 10-15 p. sporif. ; sporidiis curvulis vel subrectis, dilute fu- 

 scescentibus, 5-8 ^ 1-2. 



Hab. in ramis crassioribus Coryli, Alni, Carpini, Cra- 

 t8egi,Fagi,Betul8e, Salicum,Frangul?e,Aceris, Fici, 

 Mori, in tota Europa, Amer. bor., Amer. austr. — Var. Spe- 

 gazziniana Sacc. Myc. Ven. n. 771. — Acervulis ssepius longitu- 

 dinaliter seriatis ; ascis clavatis, deorsura raaxime attenuatis, 80 

 w 14 parte sporif., apice obtusiusculo, myriosporis; sporidiis botu- 

 liformibus, minutis, 6^-1, curvulis ex olivaceo hyalinis. — In cul- 

 mo putri Arundinis Donacis, Conegliano, Ital. bor. Junio 1876 



(SpBGAZZiNl). 



2. Diatrypella favacea (Fr.) Ces. et De Not. Schem. Sfer. p. 28, Nits. 744 

 Pyr. Gerra. p. 77, Sph. favacea Fr. Sph. grossa et variolosa Pers. 

 Sph. betulina Chev. — Stroraate transversim erurapente, peridermio 

 ssepissime valvatim fisso arcte cincto, vertice nudo, planiusculo, elli- 

 psoideo, rarissime suborbiculari, prirao albido, deraum atro, intus 

 albido, ruguloso, discreto, rarius connato, 3-6 mill. longit., 2-4 

 mill. latit. ; peritheciis 6-30 in quovis stroraate, ovoideis, obovoi- 

 deis vel oblongatis, e mutua pressione variis, mono- vel distichis, 

 ostiolis parum vel vix prominulis, leviter sexsulcatis, stellsefor- 

 mibus, aterrimis, majusculis; ascis clavatis, longissime pedicellatis, 

 60-80^9-12, p. sporif. ; sporidiis curvulis, dilute fuscescentibus, 

 6-8 s 1,5. — Stromata conidifera obtuse conica, aurata, sulcis va- 

 rie exarata, perithecigeris juvenilibus plerumque imposita; coni- 

 diis exilissime cylindricis curvatis, filiformibus, 40 u.. longis. 



Hab. in ramis et truncis Betulae albae in tota fere Europa. — 

 Var. Coryli Sacc. Myc. Ven. Spec. t. XV, f. 33-36. Acervuli ma- 

 jusculi, 3-5 mill. lati, tumiduli, disco verruculoso sed levigato ; 

 perithecia grandiuscula, V4-I ^iill- diam., in quoque acervulo pa- 

 rum numerosa, saepe monosticha; asci clavati longissirae stipitati, 

 70 ii 12 pars sporif., mjriospori ; sporidia dense conglobata, cylin- 



