24.0 Acta Societatis pro Fauna et Flora fennica. VII. 



tigeris sat similes sunt, et novo genere Corella Wainio, cujus 

 thallus strato corticali „hymeniove" auctorum destitutus est et 

 quae Corae sine controversia est affinis habituque a Coriscio (Nor- 

 mandina) viridi l ) vix distinguitur, transitum distinctissimum in 



Ascolkhenes ostendunt. Neque solae lichenum species sunt,* quae 

 apotheciis carent, nam Coriscium viride (Ach.) Wainio, planta 

 in terris borealibus baud valde rara, Leproloma lanuginosum 

 (Ach.), quod in Europa est frequens, Leprocaulon nanum (Ach.), 

 species numerosae Leprariarum, Siphularum, cet, apotheciis om- 

 nino destituta sunt, sicut „Hymenoliclienes u . 



1. C. pavonia (Web.) Fr., Syst. Orb. Veg. (1825) p. 300, 

 Epicr. (1836—38) p. 556; Bornet, Keck. God. Licli. (1873) p. 36; 

 Mattirolo, Contrib. Cora (Nuov. Griorn. Bot Ital. XIII, 1881) p. 

 253 ; Johow, Hymenolich. (Pringsh. Jahrb. Wiss. Bot. XV H. 2, 

 1884) p. 363, tab. XVII fig. 1— 3, XVIII, XIX fig. 14—16; Nyl,, 

 Svn. Lich. II (1885) p. 49 (pr. maxima parte: mus. Paris.), Fl. 1885 

 p. 449; Saccardo, Syll. Fung. VI (1888) p. 686 (pr. p.). Thele- 

 phora Web. in Beitr. Naturk. I (1805) p. 236. 



Thallus foliaceus, reniformi-suborbicularis, circ. 5—150 mil- 

 lim. latus, tenuis membranaceusque, ambitu rotunclatus aut late 

 rotundato-lobatus, lobis circ. 5 — 60 millim. latis, demum saepe 

 subimbricatis, adscendens, margine limbato-revoluto, superne gla- 

 ber, leviter concentrice striatus et subtilissime coriaceo-rugulosus, 

 cinereo-albicans vel albido-glaucescens aut rarius pallescens, sub- 

 tus pallescens et demum strato corticali („hymenio" Mattiroli et 

 Johowi) carneo vel testaceo-palliclo, irregulariter involuto-desqua- 

 mescente, et liypothallo laxissime stuppeo pallido ad basin pas- 

 sim instructus. 



Ad terrain humosam muscosamque baud rara in Carassa 

 (1400—1500 metr. s. m.) in civ. Minarum, n. 402, 1176, 1182, 

 1234. — Thallus centro basive emoriens et ambitu sat diu ac- 

 crescens, superne et infra zonam gonidialem laxe context us. ex 

 hyphis 0,0 6 — 0,0 4 millim. crassis, leptodermaticis, valde incre- 

 bre septatis constans, zona gonidiali medium versus thalli sita, 

 crebre contexta. In latere inferiore thalli inter areolas corticatas 

 liyphae passim ramulis brevibus irregularibus instructae sunt (conf. 



1 (onf. p. 188 (pars II). 



