Sphseriaceae, Hyalodidymse, Sphserella. 527 



ad sepimentum non constrictis, cellula superiore quam inferiore pau- 

 lo breviore, subhyalinis, 21 ^; 5. 



Hab. in foliis fere emortuis Agrostidis stoloniferse et 

 c a n i n 96 in Gallia et Germania. 



224. Sphaerella recutita (Fr.) Cooke Handb. n. 2772 Fuck. Symb. App. 2042 

 II, p. 21 (nec Syrab. p. 107). Sph. recuiita Fr. S. M. II, p. 524. 



— Aggregata, hyphophylla, innato-prominula, minutissima, poro 

 pertusa, nigra, strias longissiraas parallelas densas exhibens ; ascis 

 fasciculatis oblongis, sursura acutioribus, subcurvulis, 36 s 12; spo- 

 ridiis octonis oblongo-fusoideis, rectis, medio constricto-1-septatis 

 (an denique 3-septatis?) 12-14^:4-5, 4-guttulatis, hyalinis. 



Hab. in foliis Dactylidis glomeratag (etCaricura)in Bri- 

 tannia, Suecia, Germania. — Perithecia ita densa ut maculas gri- 

 seas imitentur totura fere hypophyllum occupantes. Si denique spo- 

 ridia 3-septata, an Leptosphceria ? 



225. Sphaerella Malinverniana Catt. in Arch. Bot. Critt. II, 127, t. XIV, 2043 

 f. 6. — Peritheciis hvpophyllis, atris, epidermide innatis, plus mi- 



nus dense sparsis, globosis, poro simplici pertusis, 100-150 a. latis; 

 ascis e basi ovata, apicem versus attenuatis, subsessilibus, Ssporis, 

 60-75^20-25; sporidiis 2-3-serialibus obovato-oblongis, utrinque 

 rotundatis, uniseptatis, ad sepiraentura constrictis, hyalinis, 20 ^ 10. 

 Hab. in foliis languidis Oryzse sativse in Italia boreali. 



226. Sphaerella Oryzae (Catt.) Sacc. Pleospora Onjzce Catt. Micet. 2044 

 Riso p. 11 et Arch. trienn. I, 181, t. XV-XVI. — Peritheciis hinc 

 inde gregariis, globulosis, parenchyraate innatis, epidermide tectis, 

 minutis 70-80 u.. diam., sa^pe hyphis mycelicis fuligineis v. sub- 

 hyalinis repentibus, raraosis septatis interpositis, apice obtusiuscu- 



lis poro pertusis; ascis elongato-clavatis, octosporis aparaphysa- 

 tis, 47-50 i; 8; sporidiis subdistichis, fusoideis, subhyalinis, 14-15 ^; 

 4-4,2, 1-septatis, non constrictis. 



Hab. in pedunculis foliisque Oryzje sativas, cui aflfert mor- 

 bum carolo bianco e nero dictum, in Italia boreali. 



227. Sphaerella phyllachoroides Sacc. Fung. Ven. Ser. II, 304. — Ma- 2045 

 culis nullis; peritheciis araphigenis, atris, foliorura parenchymate 

 iraraersis, in acervulos elongatos phyllachoriformes, epidermide tu- 

 midula nigrificata velatos hinc inde subparallele aggregatis, sphse- 

 roideis, ostiolis minutissimis vix prorainulis : ascis cylindraceo-cla- 

 vatis, 50-60 i; 10-11, basi brevissime noduloso-stipitatis, pseudo- 

 paraphysibus guttulatis quandoque obvallatis, Ssporis ; sporidiis 

 oblique monostichis vel distichis, ovoideo-oblongis, didymis 10- 



