Sphaeriaceae, Phaeodidymae, Melanconiella. 741 



decumbentibus, ostiolis in discum vix erumpentem y, mill. diam., 

 conjunctis, stromate olivaceo-fuscescente; ascis cylindraceis deor- 

 sum attenuatis, 110^:9-12, octosporis; sporidiis oblique monosti- 

 chis V. distichis ovato-oblongis, 18-20^7-8, olivaceo-fuligineis , 

 biguttatis, utrinque obtusis appendiculaque brevi truncata hyalina 

 auctis. — St. conidicus sistit, teste Fuck., Melanconmm bicolor 

 Corda. 



Hab. in ramis corticatis siccis Carpini Betuli m Gallia, 

 Germania, Belgio et Italia. — Sphceria melasperma West., Lamb. 

 Fl. rayc. Belg. II, p. 357 (nec Fr.) verisimiliter huc spectat. 

 2. Melanconiella chrysostroma (Fr.) Sacc. Valsa chrysoslroma Fr. 2806 

 Summa Veg. Scand. p. 412. Sph. xanthostroma Mont. et Fr. Ann. 

 Nat. 1834, t. 12, fig. 4 (nec Schw.) Melanconis chrysostroma (Fr.) 

 Tul. Carp. II, p. 125, t. XXIV, f. 14-20. Sacc. F. it. t. 453 (junior). 

 — Pustulata; peritheciis circinantibus, subinaequalibus, decumbeu- 

 tibus, ostiolis breviter exsertis, pertusis, stromate discoque lute- 

 scentibus; ascis stipitatis, cylindraceis, Ssporis, 100-120^10; spo- 

 ridiis submonostichis, ovatis, utrinque obtusis, uniseptatis, ad sep- 

 tum constrictis, fuscis, 16^8, initio hyalinis obtuseque utrinque 

 apiculatis, raro cum macrostylosporis, oblongis, 8-lOguttulatis, fla- 

 vo-fuscis, 48 ^ 16. — St. conidicus Melanconium bicolor j3. ra- 

 mulorum Corda sistit. 



Hab. in ramis corticatis Carpini Betuli in Gallia, Germa- 

 nia, Brrtannia, Italia, Am. bor. — Citationes in Corylo et Quer- 

 cu dubiae mihi videntur. 



VALSARIA De Not. et Ces. Schema Sf. it. p. 205 (Etjm. a Valsa, 

 cui vegetatione accedit). — Stroma Valsce v. BiatrypellcB, innato- 

 erumpens, corticolum {Euvalsaria), v. effusum, indeterminatum li- 

 gnoque imraersum (Phceosperma Sacc). Asci typice paraphysati, 

 tetra-octospori, cylindraceo-clavati. Sporidia elliptico-oblonga, 1- 

 septata, fusca. — Pycnidia et spermogonia in nonnullis nota. — 

 Huc duco Myr?ncecium Nits. (nec Sacc.) et Phceosperma Karst. 

 (an Nits.?); ego vero hoc postremo nomine utor ad species Val- 

 sarice eutypeas distinguendas. 



I. Euvalsaria: stromate valseo v. verruciformi, corticolo. 



1. Valsaria insitiva Ces. et De Not. (sensu ampliore). Sacc. Myc. Ven. ggQ- 

 Spec. p. 148, t. XV, f. 5-10 (nec Sph. insiiiva Tode), Myrmce- 

 cium rubricosum (Fr.) Fuck. .Symb. myc. p. 227 p. p. — Stromate 



