532 ttymenomycetjB, Tholeplioracese, Asterostroma. 



ASTEROSTROMA Massee — Syll. IX p. 236, XI p. 128, XIV p. 223, 

 XYI p. 193, XXI p. 389. 



1. Asterostroma persimile Wakefield, Kew Bnll. 1915 p. 372, t. I f. 2.— 1968 

 Late effusum, tenue, fragilissiiuum, margine indeterminato; subi- 

 culo spongioso-moUi, fulvo ; hymenio avellaneo, pulverulento; setis 

 stellatis, bruuneis, 30-140 [x latis, 3-5-radiatis, radiis 15-75 * 2-7,5 

 (basi) ; gloeocystidiis fusiformibus v. ventricosis, apice acutis, 60- 

 100=^^9-12; basidiis clavatis, 4-sterigmaticis, 25-32*^7; sporis sub- 

 globosis, stellato-tuberculosis, hyalinis, 7,5-10 * 6,8 ; hyphis hya- 

 liuis, tenuiter tunicatis, septatis, 2-2,5 [i cr. 



Hah. ad ligna, Eotorna, Nova Zeland. (Cheesman). 



2. Asterostroma OChroleucum Bres. ap. Torrend iu Broteria, ser. Bot., 1969 

 XI (1913) p. 82, fig. 5. — Late effusum, tomentosum, tenue, ochroleu- 

 cum, margiue pruinato; hymenio a matrice colliculoso vel inaequali, 

 pallido, contiguo ; sporis stramineis, globosis, aculeatis, 6 [i diam. 

 cum aculeis 9 v- ; basidiis clavatis, 20-30 * 5-7 ; cystidiis ? tenuio- 

 ribus, clavatis vel fusoideis, levibus, intus granulosis, 30-60 =#9-15; 

 stellulis luteis, 4:-7-radiatis, 70-105 [Ji, radiis basi 3-4 [a crassis; hy- 

 phis contextus 1,5-3 [i cr., tenuibus, hyalinis. 



Sah. ad ligna putrida Pini maritimae prope Bellas, Lu- 

 sitania. — Afline A. cervicolori (Berk.) Mass. a quo differt habitu 

 tomentoso, non pruinoso-farinaceo (an ob aetatem ?), colore inten- 

 siore, sporis et stellulis aliquantum diversis. 



3. Asterostroma medium Bresadola, Ann. Mycol. 18., 1920, p. 49. — 1970 

 Late effusum spougioso-molle, funiculis rhyzomorphoideis praecur- 

 sum, avellaneo-umbrinum ; hymenium pallidum, pruinosum; sporae 

 hyalinae, angulato-echinulatae 7-8 v 6-7 [jl ; basidia clavata, 24-26 



* 5-6 ; cystidia fusoideo-ventricosa v. clavata, 30-40^10-15; se- 

 tulae fulvae, stellatae, 80-150 \i diam., radiis 4-6 praeditae; hyphae 

 contextus hyalinae, tenues, 2-3 [i crassae. 



Hab. ad ligna P i n i , Lengerich Westfaliae (Brinkmann), Lusi- 

 tania (Torrend). — Inter Aster. hicolor et Aster. cervicolor fere ' 

 medium. 



4. Asterostroma degenerans Bresadola, Aun. Mycol. 18., 1920, p. 49.— 1971 

 Late effusum, immarginatum, crassum, stupeum, fusco-tabacinum ; 

 hymenium luride ferrugineum, sublaeve; sporae hyalinae vel stra- 

 mineae, tuberculatae, 8-9 [j. ; basidia colliipsa; setulae fulvae stel- 

 latae, radiis 4-8 praeditae, 60-240 |i diam. commixtae setulis cu- 

 spidatis ut in Hymenochaetis, 60-120 ^ 9-12, basi 5 radiculis prae- 

 ditis ; hyphis contextus et stellarum hyalinis, 2-3 (jl crassis. 



