Melaneonipceee, Phseosporsp, Melanconium. lt)19 



— Acervulis peritliecicideis, minutis, '/^ mra. diam., immersis, 

 subcircinatis, primitus conidiis snbglobosis, hyalinis, 3-4 p.. diam. 

 abundanter repletis, dein conidia elliptica v. o blongo-elliptica, ob- 

 tusa, bru-unea, 20-25 « 12-15, generantibus ; tasidiis circiter 15 tfc. 

 longis. 



Hdb. m cortiee vivo Alni serrulataB et rliombifoliK in 

 California. — Ob conidia ad Sphceropsidem vergit. 



3. Melanconium hysteriopsls Pat. Ca,t. rais. pl. cell. Tunisie 1897, 4033 

 p. 127; Explor. Tun. IUustr. bot. tab. lY,. fig. 8. — Acervulis 

 ampkigenis, epidermide tectis, dein erumpentibus, atris, eliipticis, 

 y^-l.y^ mm. longis; stromate crasso, brunneo-celluloso; basidiis 

 linearibus, confertis, pallidioribus, apice obtusis, 35-50 « 7-S, mo- 

 nosporis; conidiis solitariis, ' exaate globosis (non lentiformibus), 

 pallide brunneis, levibus, 10 y.. latis. 



Hab. in fdliis langue.scentibus yiiragmitls in Tunisia. 



4. Melanconium arundinaceum Ell. et Ev. Bull. Torr. \Bot.-Cl. 1897, 4034 

 p. 290. — Acervulis gregariis ellipticis, 1-1 y^ >^ ^/^-1 mm., lenti- 

 cularibus, epidermide alntacea demum medio fissa tectis; conidiis 

 globosis, 15-20 p.. diam.. vel ellipticis, 18-22 » 13-16; basidiis in 

 conspicuis, conidio brevioribus. 



Hah. in culmis emortuis Arundinarige, Louisiana Amei\ bor. 

 (Langlois). — Ab affini M, hystenno acervulis majoribus, coni- 

 diis ■vulgo obovato-ellipttcis ac basidiis inconspioais recedtt. 



5. Ilelafieonium Sacehari Masseo, Not. on the Melant?. ±890; Spegaz- 4035 

 zini in Rev. x4.gr. y Yeter. La Plata 1896, p. 242. — Acervulis 

 fere semper numerosis , plus minusve iaxe gregariis , in foliis 

 sffipe. areola indeterminata pallescente insidentibus, orbicularibus, 

 250-500 u, diam,, cbnvexulis epidermide supra plus minusve stro- ' 

 paatice nigriticata tectis, atris, poro ostioliformi (rarius rimoso) de- 

 Mscentibus, compac^tis, per setatem cirro nigro protrudente ornatis; 

 conidiis cylindraceis, utrinque rotundatis, 10-15 '=' 3 ^^-4, rectis v. 

 leniter curvulis, olivaceis, levibus, seepius grosse 1-vel 2-guttalatis, 



in sterigmatibus .hyalinis monosporis (7-10 « 3) e strato proligero 

 {m psendoperithecio?) ciasso, dense minutissimeque parenchyraar^ 

 tico a^ro-olivaceo oriundis, acrogenis. 



Had. . in foliis, vaginis, neo non culmis languidis v. emortuis 

 Saechari officinarum, prov Tucuman, Argenfina. — Acer- 

 vnli am.bitu paraphysibus filiformibus guttulatis hyalins, 40-70 v 4, 

 ■ mox articulatim .veoedentibus (et evanescentibus) cincti. 



