Arthonia. 161 



cibus rotundatis aut altero apice obtuso, in n. 214 b 4-septatae 

 ct long. 0,02 3, crass. O.oio millim., in. n. 185 4 — 5-septatae et 

 long. 0,oi6 — 0,020, crass. 0,ooe — 0,0 8 millim., cellulis, summa 

 excepta, sat brevibus. 



20. A. Miilleri Wainio. A. serialis Mull. Arg., Lich. Beitr. 

 (Fl. 1888) n. 1449 (nomen jam antea adbibitum: conf. Mull. Arg., 

 Graph. Feean. 1887 p. 56). 



Thallus sat tenuis aut crassitudine mediocris, albidus aut 

 stramineo-albicans. Apothecia approximata, elongata aut angu- 

 loso-rotundata difformiave, saepe seriatim aut vane coadunata, 

 simplicia aut varie ramosa dentatave, long. 1,2—0,3, latit. 0,6 — 

 0,15 millim., disco caesio-pruinoso. Hypothecium (peritheciumve) 

 fusco-fuligineum. Hymenium jodo caerulescens (ascis violascen- 

 tibus). Epithecmm fusco-fuligineum fuscescensve. Sporae deco- 

 lores, ovoideae aut oblongo-ovoideae, 2-septatae aut raro 3-sep- 

 tatae, long. 0,oos— 0,oi5, crass. 0,0 3 — 0,0 5 millim. 



Ad rupes in Carassa (circ. 1500 metr. s. m.) in civ. Mina- 

 rum, n. 1237, 1541. — Thallus verruculoso-inaequalis aut sat 

 laevigatas, crebre rimulosus aut areolato-diffractus, Ga Cl 2 2 non 

 reagens, KHO flavescens, medulla jodo intense caerulescente, par- 

 tim violascente. Gonidia chroolepoidea, circ. 0,oio— 0,oi6 millim. 

 crassa, membrana sat tenui aut crassiuscula. Apothecia thallo 

 immersa aut demum emersa, vulgo fissura circumscissa. Peri- 

 thecium laterale sat tenue aut passim evanescens. Hypothecium 

 vel pars basalis perithecii fusco-fuligineum, parte subhymeniali 

 tenui albida. Hymenium pallidum aut sorclide albidum. Epi- 

 thecmm KHO olivaceum aut immutatum. Paraphyses 0,ooos mil- 

 lim. crassae, apice haud incrassatae, ramoso-connexae. Asci py- 

 riformi-clavati, circ. 0,oi6 — 0,oi8 millim. crassi, apice membrana 

 incrassata. Sporae 8:nae, altero apice rotundato, altero obtuso, 

 cellulis apicalibus, praesertimque cellula crassiore, reliquis lon- 

 gioribus. 



Stirps 3. Ochrocarpon Wainio. Apothecia laetius colorata 

 vel pallescentia (haud persistenter nigra;, materias KHO inten- 

 sius reagentes haud continentia. 



21. A. Antillarum (Fee) Nyl., Fl. 1867 p. 7, Syn. Lich. 

 Kov. Caled. (1868) p. 61; Miill. Arg., Rev. Lich. Mey. p. 318, 



11* 



