Phwostiiljese, Plirngmosporai, Podosponnm. 627 



llah'. iii cortice Platani, socid Sphcerostt/l/e gracilipede, 

 Aikeu in Caroiina aUstrali. 

 2. Didymobotryum pubescens (C. et Ell.) Sacc. Graphium piibescens 29*8 

 C. et E. in Grevillea t. 9i3, f. 38, — Minutum, grei^^^arium, atrum ; 

 stipitibus sursum in hyphas relaxatas hyalinas abeuntibus; coni- 

 <liis rectis, cylindraceis, uniseptatis, hyalinis 12 y.. long., mox de» 

 ciduis. 



Hab. in caulibus Smilacis, New Jersey Amer. bor. 



0. Oldymobotryum rigidum (B. et Br.) Sacc. Pertconia rigida B. et 2979 

 F.r. Funjfi of Ceyl. n, 892. — Setiforme, e fibris plurirais com- 

 pactum. apice clavatum, basi radiatum; conidiis oblongis unisepta- 



tis, uninucleatis. 



Hab. in ramis (?) in insula Ceylon. 



Secl. .?. Slaurospora} Sacc. 



RIESSIA Fies. Beitr. p. 74 (Etym. a doct. Riess mycologo gernia- 

 nico). — Stroiila fibrosum apice clavatuni, floccosum. Conidia spo- 

 rophoris ramosis innata, ex loculis seu articulis quaternis subro- 

 lundis in formam crucis junctis composita, hyalina. 



1. Riessia semiophora Fres. 1. c. t. IX, f. U5. — Gregaria, Yo mm. mo 

 et ultra alta, alba, mox flavida dein brunnea basi obscurior et It- 

 niter incrassata; stipite cylindraceo in capitulum clavatum palli- 

 dum farinaceum, subinde bilobum abeunte; sporophoris filifonni- 

 bus ramulosis; conidiis ex loculis quaternis raro quinii», radian- 

 tibus obtusis compositis, hyalinis, 12-13 y. diam. 



Hab. \n asseribus pineis vetustis pr. Cassel Gemianiae (Riess 



Sect. 4. Phragmosperffi Sacc. 



PODOSPORIUM Schw. Syn. Amer. bor. n. 2609 (Etvm. pous pes et 

 spora), Heiminthosporiopsis Speg. F. Arg. Pug. III, n. 159. — Hy- 

 phae rigid», atrae, in stipitem simplicem v. ramosura coalitae. Cb- 

 nidia lateraliter ubique sparsa (noii capitata), oblonga v. elongata, 

 2-pluriseptata, fuliginea. — Videtur HelminihGsporium fascicu- 

 latum. 



1. Podosporium rigidum Schw. Syu. Amer. bor. n. 2608, tab. XIX, 2981 

 fig. 1, Demadum crucigerum Schw. Syn. Carol. n. 1325. — 

 Stromatibns rigidissiihis simplicibus erectis distantibus aterrimis, 

 subfragilibus, opacis, sa3[ie longitudine 12-14 cm. et ultra gre- 

 gatim elVusis ; conidiis ovaiii-eiongatis aut subcylindricis, ramulis 



