Pyronomycetfe, Lophiostomatacese, Lophionema. 553 



Sect. 6. Phopodicty.iB. 



PLATYSTOMUNI Trev. — Syll. II p. 716, IX p. 1091, XIV p. 706, 

 XVI p. 653 (sub Lophidium), XVII p. 889 (sub Platystomum). 



1. Platystomum argentinense Spegazz., An. Mus. Nac. Buenos Aires B188 

 t. XIX (1909) p. 434, cum icon. — Peritheciis tota matrice im- 

 mersis subglobosis 250-300 [j.. diam., carbonaceis, ostiolo angustis- 

 simo vix indicatis; ascis subcj^lindraceis abrupte graciliterque pe- 

 dicellatis, parte sp. 110-120=^25-30, pedicello 30*5, octosporis, 

 aparaphysatis v. paraphysibus pareissimis commixtis; sporidiis ob- 

 lique mono- v. distichis, ellipsoideo-elongatis, 11-14-septato-muri- 

 formibus, olivaceis, 35 »12. 



Hdb. ad lignum induratum trunci cariosi Duvau;e longifo- 

 liae, Santa Catalina, prope Buenos Aires Rep. Argentina Amer. 

 austr. — P. thyridoidi (Sacc.) affine, ascis caudiculato-stipitatis 

 sporidiisque paullo minoribus tamen recedens. 



2. Platystomum murlforme (Hazl.) Sacc. et Trav. — Syll. XX p. 428 5189 

 — Lophiostoma muriforme Hazsl. Sphesr. Hung. pag. 84, t. V, 



fig. 18. — Peritheciis . . . . ; ascis cylindraceis apice rotundatis 

 deorsum tenuato-stipitatis, filiformi-paraphysatis ; sporidiis oblique 

 monostichis, ellipsoideis, coloratis, utrinque rotundatis, 7-septatis, 

 non constrictis, septis (ut videtur) ternis crassioribus, loculis 3-4 

 longitrorsum partitis. 



Hab. in . . . . in Hungaria. 



Sect. 7. Scolecosporse. 



LOPHIONEMA Sacc. — Syll. II p. 717, IX p. 1094. 



1. Lophionema BambusSB von Hohnel, Stzb. k. Ak. d. Wiss. Wien 5190 

 CXVIII, Abt. I (1909) p. 323, cum icon. — Peritheciis gregariis, 

 quandoque binis approximatis, nigris, subopacis, profunde immer- 

 sis, hemisphaerico- v. semiovoideo-prominentibus, parietibus paren- 

 chymaticis firmis 60-90 ;x. cr. pluristratosis praeditis, 0,5-1 mm. 

 latis, 500-700 ii. altis, collo nullo, ostiolo compresso et rimoso do- 

 natis; ascis cylindraceis usque ad 300 a. long., supra rotundatis 

 ad 10 ^. latis, basi 8 jj.., tunica apice usque ad 4 jx. cr., J -, non 

 pedicellatis, octosporis; paraphysibus numerosissimis, 1 [x. cr., su- 



