Pyrenomycetese, Sphasriacete, Phseodidymee, Tichothecium. 723 



89, D. Tetrastaga Therryana Sacc. et Penz. Mich. II, p. 593. — 2959 

 Stroiiiate late efFuso epidermideraque longe lateque denigrante li- 

 neaque nigra infra limitato; peritheciis gregariis cortice immersis, 

 globulosis, raediocribus, nigris ; ostiolis erumpentibus, filiforniibus, 

 flexuosis, caulem setulosum efficientibus; ascis fusoideis, 36-46 cs 

 6-7, aparaphysatis, octosporis; sporidiis distichis fusoideis, 10-11 



i: 2,5-3, 4-gutt.atis, obsolete 1-septatis, hyalinis. 



Hab. in caule Hellebori foetidi, St. Bonnet le froid (Rh6- 

 ne) Gallia? (Thsrry). 



90. B, Tetrastaga mucronulata Sacc. Mich. II, pag. 568. ~ Perithe- 2960 

 ciis cortice superficie infuscato iraraersis lignoque adnatis, seriatim 

 gregariis, globulosis, '/4 ram. diam., ostiolo breve rostellato, eraer- 

 gente ; linea stroraatica nulla manifesta; ascis fusoideis, utrinque 

 obtusiusculis, 60 ::j 10, aparaphysatis, octosporis ; sporidiis distichis 



V. oblique monostichis, crassiuscule fusoideis, rectis vel curvulis, 

 utrinque acutis atque raucronuiatis, 14-15 s 6, medio septulatis le- 

 niterque constrictis, 4-guttatis, hyalinis. 



Hab. in caulibus emortuis Asteris, Newfield New Jersey 

 Anier. bor. (Ellis). 



Sect. 5. Phtfiodidyuije. 



PH^OSPHOELLA Karst. Symb. Myc. Fenn. XXVI, p. 28 (Ktym. 

 phceos fuscus et Sphc^rella). — Characteres Sphceredce sed spo- 

 ridia colorata. 



1. Phaeosphaerella maculosa (Sacc.) Karst. 1. c, Sphcerella macula- 

 ris Karst. Myc. Fenn. II, p. 174, Sphcerella maculosa Sacc. Syll. 

 I, p. 487. — Sporidia demura flavo-fuliginea, 14-24 =j 5-7. 



TICHOTHECSUM Flotow in Wint. Hedw. 1886, p. 15 (Etym. teichos 

 paries et ihece ascus, quia sec. Flot. asci parietales). — Perithe- 

 cia plus minusve immersa, demum emergentia, minuta, cornco-car- 

 bonacea, atra, poro simplici pertusa. Paraphyses mucosae, interdum 

 indistirictae v. nullae. Asci 4-8- vel polyspori. Sporidia bi-vel qua- 

 dricellularia, fusca. — Meo sensu soctiones, in quas genus dividitur, 

 genera distincta sistuut. 



I. Asci 4-8-spori; sporidia uniseptata. 



I. TichothecSum geiidarium (Mudd.j Herl. et Vogl. Add. Syll. p. 118, 2961 

 Sphceyna gelidaria Mudd Manual of Brit, Lichens p. 130. — Pe- 



