Deuteromycetse, Tuberculariace{«, Exosporium. 1495 



Hdb. ad folia viva Jacarand;e cuspidifol iie in Tucuman 

 Argentina Amer. austr. — Subiculum Erysiphem quamdara exi- 

 mie simulans. 



Sect. 8. Phfeophragmise. 



EXOSPORIUM Link — Syll. IV p. 755, X p. 738, XI p. 656, XVI 

 p. 1106, XVIII p. 686. 



1. Exosporium Meliloti Trav. in Buli. n. 8 Societe Flore Valdotaine, 8918 

 pag. 31 extr. (1912). — Sporodochiis sparsis vel gregariis con- 

 fluentibusque, innato-superficialibus, subhemisp;ericis, 200-400 [x. 

 diam., olivaceo-atris, velutinis, intus pseudoparenchimatice con- 

 textis, pallide luteo-fulvis vel subhyalinis; conidiophoris erectis. 

 sinuosis, rarius subrigidis, olivaceo-flavis, continuis vel prope ba- 



sim parce septatis, apicem versus sinuoso-nodulosis et pallidiori- 

 bus, 45-60*6-7; conidiis acro-pleurogenis, initio continuis Hmo- 

 niformibus, demum cylindraceo-ellipsoideis, apice rotundatis, basi 

 constricto-truncatis, transverse 1-3-septatid, non constrictis, flavi.s, 

 18-27 « 6-8, episporio distincte granuloso-asperulo. 



Hdb. in caulibus emortnis adhuc stantibus Meliloti albae, 

 prope Valpelline, Valle d'Aosta, Ital. bor., alt. 950 metr. — Pul- 

 chra species, fructificatione Heterosporio similis, sed ob conidio- 

 phora e sporodochio stromatico rite evoluto orientia ad hoc ge- 

 nus adscribenda. Ad subgen. Trachysporium referenda. 



2. Exosporium laricinum Massee Journ. Board Agricult. Sept. (1902) 8919 

 et Diseases cult. Plants (1910) p. 480. f. 143. — Sporodochiis pa- 

 rasiticis minutis, punctiformibus, nigris, gregariis; stromate sub- 

 circulari, saspe centro depresso, fere peziziformi, parenchymatico; 

 conidiis subsessilibus, fusiformibus, utrinque acutis, siepius cur- 

 vulis, 5-7-septatis non constrictis, subolivaceis, 25-30 w 6-7; coni- 

 diophoris brevibus teretibus, 1-septatis, concoloribus. 



Hdb. in cortice ramulorum Laricis europaeae in Britannia. 



— Corticem rimosum neddit et vexat. Non raro e medio v. ex 

 apice conidiorum conidia secundaria generantur. 



3. ? Exosporium Lauri Hazsl., Magyar Discom. p. 187, tab. 4, flg. 6. 8920 



— Sporodochiis compactis, brunneo-atris; conidiis fusoideis 8-14- 

 septatis, fuligineis, strato mucoso hyaliuo obvolutis, apice rotun- 

 datis, deorsum hyalinis stipitiformi-tenuatis, raajusculis. 



Hdb. in truncis Lauri nobilis, Fiume. — Dubia stirps. 



