Pyrenomyceteae, Hypocreacese, Dictyosporse, Pleonectria. 991 



aggregatis; ascis clavatis, octosporis; sporidiis biserialibus, ellipti- 

 cis, 5-septatis muriformibusque, hyalinis, 30 ^ 10. 



Hab. in corticibus, Canada et iri insula Ceylon. 



4. Pleonectria vagans Speg. ¥. Fueg. n. 276. — Caespitulis vix pul- 39«o 

 vinulato-erumpentibus, minutis, 1 mm. diam., 3-9-peritheciigeris, 

 sparsis ; peritheciis globoso-obovatis, 150-300 y. dia.m., sordide ru- 

 bris vel subtestaceis, saepe pruinula stromatica tectis, raembraaa- 

 ceo-carnosulis, contextu pius minus distincte parenchymatico, ru- 

 bro-aurantio, ostiolo vix papiilulato, fuscidulo donatis; ascis sub- 

 ciavatis, antice truncatis crassiusculeque tunicatis, postice modice 

 attenuato-pedicellatis, p. sp, 90-100 =; 18-20, ped. 20-30 =; 5, octo- 

 sporis, aparaphysatis; sporidiis obiique distichis, elliptico-elongatis, 

 utrinque plus rainus acutato-rotundatis, 28-35-10-12, horizonta- 

 liter 7-9-septatis, non constrictis (rarius vix ad medium). loculis 

 3-6 internis, septo altero verticali, continuo divisis, locellis non v. 

 grosse 1-guttulatis, saepius leniter curvulis, hyalinis. 



Hab. vulgata ad ramos dejectos Fagi betuloidis, F. ant- 

 arcticse, Mayteni magellanica^, Dryraidis Wiuteri in 

 Staten island et in Fuegia Amer. austr. 



5. Pleonectria antarctica Speg. F. Fueg. n. 275. — Cajspitulis ap- 398i 

 planatis v. hemisphaericis, majusculis, 2-3 mra. diam., 20-40-peri- 

 thecigeris, sparse erumpentibus; peritheciis globosis vel obovatis, 

 300-350 y.. diam., coccineis, glabris, levibus, carnosulis, contextu 

 dense parenchyraatico, rubro, ostiolo minuto, acuto, vix papillula- 



to, saepius fuscescente instructis; ascis fusoideis, sursum attenua- 

 tis, apice truncatis, crasse tunicatis, minute 1-foveolatis, deorsum 

 cuneati^ ac in stipitem brevem crassumque productis, 80-100=: 15- 

 20, octosporis, aparaphysatis ; sporidiis di-tri-stichis, ellipticis vel 

 . ovoideis, utrinque obtusissimis, 20-27 s 8-10, rectis vel vix inaequi- 

 lateralibus, horizontaliter 7-{rarius 5-)septatis, ad septa non con- 

 strictis, loculis oranibus septis 2 verticalibus divisis, locellis cri- 

 brose guttulatis, hyaliuis. 



Hab. ad ramos Berberidis ilicifolia^ emortuos pr. Pacto- 

 lus cove in Staten island Fuegiae Amer. austr. 



6. Pleonectria denigrata Wint. Hedw. 1883, pag. 71. — Peritheciis 3982 

 Cfespitulos densissiraos, erumpenti-superficiales, pulvinato-subhemi- 

 sphsericos, usque 5 ram. diam. metientes formaotibus, stromatis pul- 

 vinati, intus rufescenti-lutei superficie insidentibus, fere globosis, 

 extus griseis, eleganter nigro-papiilatis, demum vertice depressis 



et urabilicatis, nigrescentibus, 370-470 [j.. diam.;ascis cylindraceis 



