Microthyriaceoe, Hyalodidyraae, Microtliyrium. 249 



latis, infra medium, 1-scptatis, vix constrictis, loculo superiore 

 multo majore, 18-22^:4, olivaceis. 



ITab. in foliis Vaccinii vitis-idocce in Gallia. 

 *8. Microthyrium mauritanicum Mont. Syll. p. 261, Sacc. Syll. II, 5374 

 p. G64, Bacc. et Avett. Cont. Stud. myc. rom. p. 20, t. XVI, f. 7. 



— Perithecia sparsa vel interdum gregaria, punctiformia, dirai- 

 diato-scutata, obscure radiatim contexfa, ostiolo rimoso dehiscen* 

 tia, 100 a. lata; asci obovato-oblongi, oblique et brevissime stipi- 

 tati, ad apicem versus incrassati, 19 ::; 13, 8-spori ; sporidia tri- 

 sticha, elongata, curvula vel recta, hyalina, ad medium septata, 

 12::; 3. 



Hah. in culmis Arundinis Donacis ad sepes prope Roma 

 Ital. merid. 



*11. Microthyrium pulchellum Speg. Fungi Guar. Pug. I, n. 295. — 7331 

 Maculis nullis; peritheciis hypophyllis, densissime congestis, raa- 

 culas crustaceas, irregulariter orbiculares, 2-3 mm. diam., sparsas, 

 non confluentes, atras v. sordide glaucescenti-atras, non vel vix 

 subpulvinatulas, subpapillosulas efficientibus, parvulis, 130-180 u.. 

 diam., dimidiato-scutatis, orbicularibus, ssepe confluentibus ac e 

 mutua pressione angulosis, atris, minutissirae rugulosis, poro pa- 

 rum perspicuo pertusis, contextu dense prosenchymatico-radiante, 

 pulchre concentrice zonato, fuligineo-atro, subopaco; ascis cylindra- 

 ceo-clavatis, brevissime stipitatis, 30 :i 10, aparaphysatis ?, 8-sporis; 

 sporidiis prirao fusoideo-clavulatis, medio 1-septatis, non constri- 

 ctis, apicibus appendice minutissima, globosa v. penicillata ornatis, 

 dein clavulatis ad septum constrictis, utrinque exappendiculatis ob- 

 tusiusculisque, hyalinis. 



Hab. ad folia viva Blechni spec. cujusdam in silva Caa- 

 guazu Bras. 



*14. Microthyrium caaguazuense Speg. Fungi Guar. Pug. I, n. 296. 733^ 



— Subiculo tenuissimo, laxe arachnoideo, fusco, amphigeno, utrin- 

 que folium saepe totura ambiente; peritheciis hinc inde in subi- 

 culo sparsis, dimidiato-scutatis, 150-200 y.. diam., raembranaceo- 

 coriacellis, fusco-atris, ostiolo vix perspicuo perforatis, arabitu 

 flmbriatulis, contextu breviter prosenchyraatico, periphaerico pel- 

 lucido, centrali opaco, olivaceo-fuligineo; ascis ovatis v. ellipticis, 

 tunica raodice incrassatula, utrinque acutato-rotundatis, crasse bre- 

 vissimeque pedicellatis, 65=; 20, aparaphysatis, 8-sporis; sporidiis 

 inordinatis, clavulatis, 25^:12, raedio 1-septato-constrictis, loculo 

 supero subgloboso, infero conoideo, utrinque obtusiusculis, hyalinis. 



