249 



* L. pachysporum Sacc. M. V. n. 1157. Peritheciis 

 immersis v. semiimmersis, globulosis, ostiolo minuto co- 

 nico-compresso ; ascis -cylindraceo-clavatis, 120-150=* 

 18-20, apice rotundatis, breve stipitatis, paraphysatis, 

 octosporis; sporidiis monostichis, v. subdistichis, ovato- 

 oblongis, curvulis v. rectis, utrinque obtusiusculis, 25- 

 30 * 12-16, 6-10-septato-muriformibus, initio amcene 

 fiavis, guttulatis, dein fahgineis, ad septum medium di- 

 stincte, ad cetera obsolete constrictis. 



Hab. in iigno indurato abietino a Vittorio, Oct. 

 1877, socio Lopkiostomate compresso (Pers.) Ces. & 

 DNtrs. 



Diaporthe (Tetrast.) Gastaneti Nke Pyr. Germ. p. 

 320. Sacc. M. V. Cent. XIII. 



Hab. in ramulis emortuis Castaneae vescse a 

 Conegliano, Dec. 1877 (Spegazzini). 



Obs. Asci fusoidei, aparaphysati, 70-80 ^ 10, Sspori. 

 Sporidia disticha, fusoidea, constricta, tenuiter 1-septata, 

 15-18 * 4-5, utrinque obtuse attenuata, recta v. cur- 

 vula, 4-guttulata, hyalina. 



Thyridium pulchellum Sacc. & Sp. M. V. Cent. XIII. 

 Stromate eutypeo effuso, ligni superficiem nigrificante ; 

 peritheciis ligno immersis globosis, diam. x / 3 - l / mill. 

 diam., nigris, ostiolo minuto vix prominente; contextu 

 perithecii laxiuscule parenchymatico, fuligineo; ascis cy- 

 lindraceis, 100 * 15-16, apice rotundatis, breve crasse 

 stipitatis, paraphysibus longioribus, filiformibus obvallatis, 

 tetrasporis ; sporidiis recte v. suboblique monostichis, o- 

 blongo-ellipsoideis, 30-38 * 15-18, utrinque rotundatis, 

 initio 1-septatis, olivaceis, dein 6-8-septatis, denseque 

 muriformibus, ad septa non constrictis, multiguttulatis, 

 fuligineis. 



Hab. in iigno putrescente Catalpae syringifo- 

 liae a Conecjliano, Oct. Dec. 1877 (Spegazzoi). 



Obs. Species pulcherrima, distinctissima. De sensu 



generis cfr. « Michelia » I. p. 50. 



Xylaria (Xylodactyla) Arbuscula Sacc. M V. n. 1192. 



Gregaria, fasciculata, arbusculiformis, atra; stipitibus gra- 



cilibus, cent. l l f -2 l /. 2 alt., mill. l%-2 cr.,adscendentibus, 



