352 



rotundati, basi abrupte breve incurvo-stipitati, 65 * 20, 

 aparaphysati, octospori. Sporidia disticha, v. tristicha, 

 didyma, utrinque rotundata, ad septum leniter con- 

 stricta, 20-25 *? 7-7y 2 , loculo inferiore paulo angustio- 

 re, hyalina v. dilutissime chlorina. His notis species 

 hsec ad genus Microthyrium rite meritoque per- 

 tinere videtur. 



4. Rosellinia amphisphssrioides Sacc. & Sp. in 



Mycoth. Ven. n. 1274. Peritheciis sparsis, basi cor- 

 tice insculptis, rarius semi-immersis, globosis, l l x -/ z 

 mill. diam., atris, carbonaceis, ostiolo conico papilla- 

 to; ascis cylindraceis, 90-120^10-12, apice rotun- 

 datis, deorsum brevissime attenuato-stipitatis, paraphy- 

 sibus filiformibus guttulatis obvallatis, octosporis; spo- 

 ridiis recte v. oblique monostichis, ellipsoideis v. oblon- 

 go-ellipsoideis, 20-22*10, utrinque obtusiusculis , 

 quandoque insequilateralibus, non v. 1-2-guttulatis, 

 olivaceo-fuligineis, subopacis. 



Hab. in cortice duriore Populorum a Vittorio, 

 Oct. 1877. 



5. GymnV>sporium Bambusae Thiim. & Bolle Con- 

 trib. Funghi Litor. p. 6. fig. 12. 



Hab. in foliis emortuis Bambusae arundinaceee 

 a Susegana, Jan. 1877 (C. Spegazzini). 



6. Stigmella Visianica *) Sacc. Mycoth. Ven. n. 1289. 



Acervulis hypophyllis, hinc inde gregariis erumpenti- 

 superficialibus, applanatis, atro-olivaceis, subvelutinis ; 

 conidiis e strato proligero celluloso fuligineo oriundis, 

 oblongo-ovoideis, utrinque obtusiusculis, 20-32 a 8-10, 

 3-(raro 4-)septatis , parceque muriformibus, ad se- 

 pta vix, ad medium distincte constrictis, ssepe guttu- 

 latis, olivaceo-fuligineis, basidiis brevissimis hyalinis 

 crassiusculis suffultis. 



Hab. in foliis dejectis Platani orientalis« Pa- 

 dova, Febr. 1873 et 1878, frequens in Horto botanico. 



*) Ad honorem Magistri olim mci Rob. de Visiani, in studiorum 

 patavina Universitate diu Botanices professoris et ornamenti, de Bota- 

 aica phanerogamica et palaeontologica meritissimi atque celcberrimi, 

 dic 4 Maji hujus anni 1878, ehcu nobis et scicntia* erepti. 



