Pyrenomycetese, Perisporiaceae, Dimerosporiuni. 401 



EROSFOBiy^ Fuck, — Syll. I, p. 51. 



1. Dimerosporium erJophllum Wint. Cont. Flor. Myc. Lus. Ser. VI, 1594 

 p. 9. — Peritheciis hypophyllis, dense sparsis, globosis, mioutissimis, 

 raerabraQaceis, fusco-atris, mycelio repente, ramoso, articulato, fu- 



sco insidentibus, superficialibus, astomis, 60-80 u.. diam. j ascis fa- 

 scicalatis, aparaphysatis e basi oblonga sursum parum attenuatis, 

 sessilibus, 8 -sporis, 30-55^:7; sporidiis subdistichis, ellipsoideis, 

 raedio septatis et profunde constrictis, pallidissime fuscidulis, 7 ^Z. 

 Hab, ad folia subviva Quercus cocciferaj in Campo Re- 

 dondo prope Braganca in Lusitania (Moller). 



2. Olmerosporium excelsum Cooke in Grevillea XV, p. 17, — Ma- i695 

 culas radiantes, atras, orbiculatas, crustaceas, in foliorum pagina 

 inferiore forraans; peritheciis subglobosis, raerabranaceo-carbona- 

 ceis, 15 moi. diara., centro cougestis; ascis clavatis, sessilibus, basi 

 angustatis, octosporis; sporidiis ellipsoideis, uniseptatis, medio le- 

 niter constrictis, utrinque rotundatis, hyalinis, 12^4. 



Hab, in foliis emortuis Knightise excelsae, in Nova Ze- 

 huidia (CoLENSo). 



3. Dimerosporjus^ LanglossH Ell. et Mart. in Journ. of Myc. 1886, 1696 

 pag. 129. — Peritheciis grogariis, depresse sphreroideis, rugosis, 

 atris, subastorais, 112-120 u.. diam., mycelio ex hyphis brunneis, 

 ramosis, formato, maculas parvas, obscure coloratas formante in- 

 sidentibus, leniter sparsis iu superiore pagina foliorum; ascis sub- 

 sessilibus, oblongis, s^epe ina^quilateralibus, 25-30 - 7-9, aparaphy- 

 satis; sporidiis distichis, clavato-oblougis, luteo-brunneis, 4-nuclea- 



tis, uniseptatis, vix ad septura coastrictis, 9-10 ::i 3,5-4. 



Hab. in foliis vivis Diantherae hurailis, Louisiaua Araer. 

 bor. — Perithecia contextu radiato-celluloso, subinde sporulas bi- 

 nucleatas, oblongo-cylindraceas, 7-8 =; 12, subhyalinas continentia. 



4. Dimerosporium Osyridfs Winter Ex. Pilze in Flora 1884, p. 7. i697 

 — Hyphis raycelicis fuscis, ramosis, radiantibus, raaculas atras, 

 rotundatas seu irregulares, usque 2 ram. latas formantibus; perithe- 



ciis gregariis, depresse globosis, rugulosis, glabris, atris, sub mi- 



croscopio fere impellucidis, fuscis, 150-210 a. diam.; ascis cylin- 



draceo-clavatis, brevissirae stipitatis, 8-sporis, 42-52 cs 10-12; spo- 



ridiis oblique distichis, oblongis, bicellularibus, hyalinis, 9-12 s 4-5, 



ad septum constrictis; paraphysibus filiformibus, ascos aequantibus. 



Hab. ad folia viva Osyridis corapresssB in Promontorio 



Uonae Spei Afr. austr. (Mac-Ow/vn). 



26 



