20& Sphasriaoea?, Hyalophragmke, Aeanthostigma. 



gidulis, continuis plus v. rninus copiosis fuJigineis vestitis; ascis 

 fusoideis, snbsessilibus, sparaphysatis, octosporis 70^15; sporidiis 

 distichis, v. subtristichis, elongato-fusoideis, utrinque obtusiuseulis, 

 ieniter curvis, 5-septatis, lenissime constrictis, 28-30 s 4,5-5, iiya- 

 linis. 



Ilab. in cortice interiore Cerasi, Turbigo Lombardia Italia 

 bor. (Geni':). 



2. Acanthostigma revocatum (Sacc.) Lasiosphmria perpusilla Sacc. 3603 

 V, Ven, Ser. II, 327, F. it. t. 111. — Peritheciis gregariis super- 

 ficialibus, minutissimis, .100-120 u., diam., punctiformibus, globoso 

 depressis, aterrimis, setulis brevibus perithecii diametrum dimidium 

 aequantibus 1-cellularibus atris uiidique sod remotiuscule obsitis, 

 ostiolo impresso obsoleto; ascis crasse clavatis breve crassequ< j . 

 stipitatis, 50 s 16, paraphysibus ftliformibus obvallatis, S-sporis; 

 sporidiis polystychis, cylindraceo-fusoideis, 25-30 z 3 ! /j-4, utrinquo 

 obtusiusculis, lenissime curvulis, initio 5-6-guttulatis, dein 5 sep- 

 tatis, hyaliuis. 



ffab. in 1 igno denudato S a li c i s vi t e 1 1 i n se , Selva (Treviso) 

 Ital. bot*. — Acanthostigw,ati perpusillo De Not. affine. 



3. Acanthostigma Sequojfs (Plowr.) Sacc Venturia Sequojw Plowr. 3604 

 in Grev. VII, p. 71, t. 120, f. 3. — Peritheciis inaequalibus, spar- 



sis, snperne setulosis; ascis cylindraceis 70-10, octosporis; spo- 

 ridiis fusoideo-linearibus , tenuiter 3-septatis, distichis, hyalinis 

 13-15^2-2,5 (ex icone). 



Hab. in foliis dejectis Sequojse gigauiore in Califomia 

 Amer. bor. 



4. Acanthostigma pulchrisetum (Peck) Sacc. Sphcvria (Villosse) pul- 8605 

 chriseta Peck 31Rep. on the St. Mus. N. Y. — Peritheciis pero- 

 xiguis, 75-100 ;/.. d., superficialibus, copiosis, denique collapsis, 

 nigris, setulis rectis, divergentibus, nigris pulchre vestitis; ascis 

 anguste fusoideis; sporidiis anguste fusoideis, hyalinis, 62-75 ;>.. 

 Iongis, plasmate subinde medio partito. 



llab. in frustulis ligneis in sylvis, Griffins Amer. bor. — 

 [iabitus VcnturicB sed asci paraphysati visi, sporidiaque diversa. 



5. Acanthostigma erysiphoides (Rehm) Sacc, Trichospluvria erysi- 3606 

 pkoides Rehm Beitr. Ascom. Fledw. 1882, p. 121. — Peritheciis 

 minimis, nudo oculo vix conspicuis, sossilibus, globosis, basi hyphis 

 fuscis, teneris crebris circumdatis et pilis brevibus, acutatis, sep- 

 tatis, simplicibus, fuscis obsessis, parenchymaticis, atris; ascis ova- 

 libus, apice paullulum incrassatis, 4-6-sporis, 45^10, sporidiis 



