;,:;- Pyrenomycetae, Perisporiace», Perisporieee, Dimerium. 



subsericeo, submembranaceo, dein flavo-ferrugineo, e filis septatis, 

 ramosis, primo hyalinis dein fusoescentibus, ca. 5 18 a. cr. ; pe- 

 ritheciis aggregatis, subglobosis. astomis, atro-brunneis, ca. 150- 

 180 [i, diam.; ascis ovoideis v. subclavatis, vertice crasse tunicatis, 

 basi curvatis. 65-75 » 30-45, 4-8-sporis, subdistichis v. conglobatis 

 oblongis v. ovoideis subclavatis, rectis v. curvulis, utrinque rotun- 

 datis, medio 1-septatis vix constrictis, flavo-fusoidulis. 30—15 

 14-18. 



Hab. in foliis Copaiferae Baumianse, Kusisi prope Likise 

 Afr. austr. 



3. Dimerium parasiticum (Starb.) Sacc. et D. Sacc. Dimerosporium 1816 

 parasiticum Starb. in Arkiv. for Botan. 1904, Band 2, p. 11. — 

 Mycelio in lryphis hypliopodiis praeditis melioloideis partim pa- 

 rasitante, subiculum membranaceum, orbiculariter expansum. vage 

 determinatum, griseo-fuscum formante, hyphis ramulosis, septatis, 

 fere hyalinis 2.5-3 ;j.. latis composito ; peritheciis hinc inde spar- 



sis, paullum aggregatis, appendicibus longe repentibus, fuscis, ra- 

 mosis, septatis, circa 5 \x. cr. ornatis, globulosis v. ovato-globulosis, 

 textura membranacea nigricantibus, 65-75 a. diam. vel 70^44; 

 ascis pa/ucis, sessilibus, ovoideis vel ovoideo-oblongatis, sursum 

 incrassatis, 32-40 « 15-18; sporidiis octonis, conglobatis, clavulatis, 

 medio septatis, non constrictis, sursum obtusatis, deorsum acutiu- 

 scule attenuatis, primo hyalinis, denique fuscescentibus, 17-21 « 

 4-5; conidiis ex hyphis mycelii orientibus, clavulato-oblongis, 1-3- 

 septatis, plerumque longe et hyaline pedicellatis, fuscis, usque ad 

 19 « 6,5 (25 ;j.. long. cum append.). 



Hab. in silva primseva Poaia, Matto-Grosso Brasilin^ Lixn- 

 man). — D. imperspicuum Speg. sporidiis elliptico-subovatis aliis 

 notis exceptis ditTert. 



4. Dimerium paulense (P. Henn.) Sacc. et D. Sacc. Dimerosporium 1817 

 paulense Henn. in Hedw. 1902, pag. 297. — Maculis fuseidulis 

 indeterminatis vel obsoletis; peritheciis amphigenis, sparse grega- 

 riis, lenticularibus, atro-membranaceis, cellulosis, medio depre3sis 

 perforatis, 100-200 ;j.. diam. ; hyphis fasciculatis, 3-4 ;j.. cr., septatis, 

 fusco-atris, radiantibus circumdatis ; conidiis subclavatis, rectis v. 

 curvulis, ca. 4-5-soptatis v. ovoideo-incurvatis, 12-15 « 10-12, 5-6- 

 septatis, fusco-atris; ascis clavatis, apice obtusis, crasse tunicatis, 

 brevissime stipitatis, octosporis, 35-45 s LO-14; sporidiis fusoideis 



vel subclavatis, apico acutiusculis, medio 1-soptatis, constrictis, 

 chlorino-olivaceis, 15-20 * 3-4. 



