Dothideaceae, Phragmosporae, Homostegia, 049 



culato, e fibris ligni striatulo, nigro, nitidiusculo, loculis imrai r is 

 albidis, 1-1,5 mill. long., 0,1-1,4 raill. lit ; ascis clavatis, ba 

 nuata, curvata, 65-75 s 12, 8-sporis; sporidiis distichis, ellipsoid< 

 vei oblongato-ellipsoideis vel fusoideo-oblongatis, 3-septatis, hya- 

 lino-Iuteolis, 13-16s5-6; paraphyMlms filiformibus, fiexuosis asc 

 superantibus. 



Ilab. ad lignum denudatum ramulonun Juniperi dejectorum 

 in Lapponia rossica, prope Kitofka, Kola et Rasnawolok; ad lignum 

 pineum prope Paanajarvi io paroecia Kuusamo in Fennia. 



HONIOSTEGiA Fuck. Symb. myc. p. 223. (Etyra. homos, communis 

 siege, tectura). — Stroma subplanum vel hemisphaTicum, car- 

 bonaceum, fragilissimum, nigrum, intus griseum. Loculi imrnersi, 

 nucleo albo, ostiolo miuuto, papillato. Asci oblongato-clavati, octo- 

 spori. Sporidia ovoideo-ellipsoidea, :j-septata, fusca. 



I. Lichenicola?. 



1. Homostegia Piggotii (B. et Br.) Karst. Myc. Fenn. 11, p. 222. Do- r ym 

 thidea IHggotii Berk. et Broora. Brit. Fungi n. GGO, Sphceria ho- 

 mosicgia Nyl. in Flora 1857. p. GG8, Homoslegia adustn Fuck. 

 Symb. myc. p. 224. — Stromatibus thallo innatis, orbicularibus, 

 superficie ostiolis loculorum minutis punctulatis, nigris. intus gri- 

 seis, opacis; ascis oblongato-clavalis. 04=16; sporidiis distichis, 

 ovoideo-ellipsoideis, leviter curvulis, 3-septatis, fuscis. 



Hab. in thallo Parmelise snxatilis in Fennia, Britan- 

 nia, Germania. — Sporidia rarissime 4-septata. 



2. Homostegia Lichenum (Somm.) Fuck. Symb. myc. p. 224, Dolhidea 

 Lichenum Somm. Lapp. p. 224. — Erumpens, subrotunda, planiu 

 cula, rugulosa, atra, a matrice marginata, loculis subimmersis al- 



bidis (Somm.); ascis? ; sporidiis (stylosporisve) oblongo-ovatis, 



utrinque perparum attenuatis, sed obtusis, sul sr bil< 



ribus, loculis uniguttulatis, fuscis, 16 s6; spennatiis cylindraceis, 

 curvatis, uniseptatis, hyalinis, 16 2 1 ., (Fuck.). 



Hab. in thallo Peltigerae caninae prope Budenheim I ,), 

 in Sticta pulmonacea, in Gyrophora arctic i 

 doniis in Lapponia et Suecia. - Ad Celidium Stictarum Tul. 



species Sommerfelti a quibusdam ducitur sed in ur. 



Cfr. De iNot. (E. cr. Ital. n. 394) qui sporidia L-locularia i ut 



in Rhopographo filicino. — Si transversin uper- 



ficie rugulosa subrimosa atra stratum apparet albidum, i ub 



