6G4 Discomycete£e, Sticteae, Hyalospor^e, Xylographa. 



Hab. \n caule emortiio Galii, Troyes Gallise (Briard). 



2. Briardia purpurascens Rehm Disc. p;^152 cura icono. — Gre- 

 garia, matrice expallente parallele seriatim iramersa, dein per epi- 

 dermidem lineatim fissara erumpens, prirao suborbicularis dein elon' 

 gata, subhysteriodea, disco purpureo tenui-marginato v. denticulato 

 plano, 0,3-3 mra. long., 0,3-0,5 mra. lat. ; ascis clavatis 45-55 s 

 5-6, 4-8-sporis; sporidiis elongatis, obtusis, rectis vel curvulis, 

 continuis, hyalinis, G-10s3, subraonostichis; paraphysibus fiiifor-i 

 mibu^ apice clavulatis, 3 y.. cr. 



Hab. in caulibus emortuis Chenopodii albi pr. Berlin Ger- 

 manise. 



XYLOGRAPHA Fr. S. M. II, p. 197 (1822) [Etym xylon lignura et 

 grapho scribo]. — Ascomata elongata v, sublinearia, subiraniar- 

 ginata, ceracea (in sicco corapacta), late lanceolato-dehiscentia, di- 

 sco crassiusculo fuscello. Asci tereti-clavati, paraphysati , octo- 

 spori. Sporidia ovato-oblonga, continua, hyalina, — Genus ab au- 

 ctoribus nonnullis inter Lichenes enumeratum. Species magis fuiifi 

 gina3 hic describuutur, ceterse in operibus lichenogicis quaereQdae. 



1. Xylographa parailela (Ach.) Fr, Summa p. 372, Lichen parallelus 

 Ach. Prod. Lich. p. 23, Opegrapha Ach. Lich. univ., Hysl. parall.\ 

 Wahl. Lapp. 523, p. 91, H. abieiinum Pers. Obs. 1, p. 31. — 

 Erumpens, striieformis, prirao clausa, dein aperta, disco raargi- 

 nem obliterante rufescente, in siccis nigro; ascis clavatis, 8-spori^i 

 GO-70 w 15-18; sporidiis plus rainusve ovatis v. ellipticis, 1-cellulari- 

 bus, nucleo 1 magno centrali, rarius nucleis 2 praeditis, hyalinis 

 12-15^:6, distichis; paraphysibus filiforraibus, articulatis et in cla- 

 vam fuscam c. 5 p- cr. exeuntibus; hypotecio hyalino, epithecii' 

 fusco. 



Hab. in omni ligno decorticato vetusto, praecipue pineo, fa- 

 gineo, salicino, in tota Europa, Araer. bor. et merid. — Strias 

 sistit longitudinales, in statu sicco nigras subparallelas ; humecta- 

 tas vero turaentes rufescentes vel iucaruato-pallidas ; excipuluin 

 tenuissiraura, membraQaceura, nigricans, primo clausum niox aper- 

 tura, demum totum obliteratura ; inferne, ubi fungus innatus, omni- 

 no deficiens ; discus apertus subrotundus vel ellipticus vel uno apice 

 attenuatus, altero obtusus, deniura confluens. 



2. Xylographa spilomatica (Anzi) Th. Fr. lich. scand. p. 639, Rehm 

 Disc. p. 154 Agyrium Anzi Symb. pag. 20, X. minuiula Korb. 

 par. lich. p. 276, A''. coruscans Norm. bot. not. 1872, p. 31. — 



