240 Acta Societatis pro Fauna ct Flora fennica, YII. 



tigeris sat siniiles sunt, et novo gencrc Corella Wainio, cujus 

 thallus strato corticali ,,hymeniove" auctonun destitutus est et 

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

 mandina) viridi ^) vix distinguitur, transitum distinctissimum in 

 Ascolichenes ostendunt. Ncque solae lichenum species sunt, quae 

 apotheciis carcnt, nam Coriscium riride (Ach.) Wainio, planta 

 in terris boreaHl)us haud valde rara, Leproloma lanuginosum 

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

 species numerosae Leiyrariarumj Siphularum, ceL, apotheciis om- 

 nino destituta sunt, sicut ,,Hymenoliche7ies'^. 



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

 Epicr. (183638) p. 556; Bornet, Rech. aou. Lich. (1873) p. 36; 

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

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

 1884) p. 363, tab. XVH fig. 1 3, XVIH, XIX fig. 1416; NyL, 

 Sjn. Lich. II (1885) p. 49 (pr. maxima parte : mus. Paris.), FL 1885 

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

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



Thallus fohaceus, reniformi-suborbicularis, circ. 5 150 mil- 

 hm. latus, tenuis membranaceusque, ambitu rotundatus aut late 

 rotundato-lobatus, lobis circ. 5 60 milhm. latis, demum saope 

 subimbricatis, adscendens, margine hmbato-revohito, superne gla- 

 ber, leviter concentrice striatus et subtihssime coriaceo-rugulosus, 

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

 tus paUescens et demum strato corticali (,,hymenio" Mattiroh et 

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

 mescente, et hypothallo laxissime stuppeo palhdo ad basin pas- 

 sim instructus. 



Ad terram humosam muscosamque haud rara in Carassa 

 (14001500 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 contextus, ex 

 hyphis 0,00 6 0,oo4 milhm. crassis, leptodermaticis, valde incre- 

 bre septatis constans, zona gonidiali medium versus thalh sita, 

 crebre contexta. In latere inferiore thaUi inter areolas corticatas 

 hyphae passim rcmulis brevibus irregularibus instructae sunt (conL 



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



