Pyrenomycetfp, Microthyriacefe, Hyalodidymre, Microthyrium. 863 



4. Microthyrium Hederae Feltg. Vorstud. Pilz. Luxemb. Nachtr. III, 2993 

 1903, pag. 310. — Peritheciis sparsis, sessilibus, applanato-hemi- 

 sphsericis 200-250 \l. diam., nigricantibus, poro pertusis, radiato- 

 contextis, margine vix fimbriatis ; ascis oblongo-ellipsoideis, utrin- 

 que rotundatis 40-50^10-11, octosporis; sporidiis distichis, cylin- 

 draceis, utrinque rotundatis 2-4-guttulatis, continuis (an semper?), 

 hyalinis 10*2,7-3,5. 



Hab. in ramulis corticatis, emortuis H e d e r a; Helicis, Lu- 

 xemburg. — Paraphyses non observatoe. 



5. Microthyrium Melaleucae P. Henn. in Hedw. 1903, pag. (78). — 2994 

 Peritheciis amphigenis, dimidiato-scutellatis, atris, 0,3-0,7 mm. 

 diam., radiato-cellulosis; ascis ovoideis, apice tunicatis, rotundatis, 

 basi curvulis attenuatis, 8-sporis, 16-20 * 7-8; sporidiis clavatis 



v. oblonge ovoideis, 1-septatis, haud constrictis, hyalino-chlorinis 

 8-10 * 2-2,5. 



Hab. in foliis coriaceis Melaleucae Leucadendri, Barron 

 M. Queensland Australioe (Pritzel). 



6. Microthyrium Eucalypti P. Henn. F. Austral. occ. II, in Hedw. 2995 

 1901, p. 352. — Maculis nullis; peritheciis amphigenis, sparsis, 

 mycelio repente, filis brunneolis, brevibus, subtorulosis ca. 3-4 \x. 



cr. circumdatis, dimidiato-subpulvinatis, orbicularibus, atro-casta- 

 neis, punctulatis, 250-300 [j.. diam., centro obtuse subostiolatis, 

 pertusis, dein subtrilobato dehiscentibus ; ascis clavatis, apice ob- 

 tuse rotundatis, basi attenuato-substipitatis, octosporis, 80-100 ** 

 18-22 ; sporidiis subdistichis. mucosis, fusoideis, utrinque subacu- 

 tiusculis, medio 1-septatis, hyalinis vel minute flavidulis, 20-25 * 

 4-5,5. 



Hab. in foliis vivis Eucalypti santalifolise prope Cran- 

 brook Australise occid. 



7. Microthyrium cantareirense Henn. in Hedw. 1902, pag. 300. — 299G 

 Peritheciis orbiculari - scutellatis, epiphyllis, gregariis , contextu 

 atro-membranaceo, radiato, poro pertusis, 300-350 jx. diam , ra- 

 diatim rimosis, hyphis fuscis, septatis 3,5-4,5 ;j.. circumdatis ; ascis 

 oblonge ellipsoideis vel clavatis, apice obtuso-rotundatis, crasse 

 tunicatis, octosporis, 60-75 « 20-35; sporidiis subdistichis, ovoideis, 

 1-septatis, valde constrictis, hyalinis, dein fuscidulis 20-24 v 13-15. 



llab. in foliis Myrtacese cujusdam, Serra da Cantareira, pr. 

 S. Paullo Brasilin'. 



8. Microthyrium Coffeae P. Henn. Notizbl. bot. Gart. Berl. 1903, 2997 

 p. 240. — Peritheciis epiphyllis, sparsis, dimidiato-scutatis, mem- 



