238 Acta Societatis pro Fauna et Flora ieunica, VIT. 



4. C. pycnocarpum Nyl., Syn. Licb. (185860) p. 115 (mus. 

 Paris.), Lich. Nov.-Ciran. (1863) p. 428, ed. 2 (1863) p. 287; Tuck., 

 Syn. North Am. (1882) p. 143. 



Tliallu^ miniitus, irregulariter crebrc lacinulatus, lacinulis 

 1 0,2 millim. latis, crassiusculis, creberrimc conicrtis, marginc 

 verrucoso-crenulatis vel gibboso-ramulosis, ramulis crenulisque 

 saepc subtcretibus, isidiis destitutus. Apothecia demum crebra 

 conferta, peltata basiquc constricta, 2 0,7 millim. lata, disco rufo, 

 nudo, margine subintcgro. Excijnihim thallodes, strato corticali 

 destitutum, peritheclo proprio nullo distincto. Sporae oblongae 

 ellipsoideacvc aut fusiformcs, 1-septatae, long. 0,oo6 0,oo9 mil- 

 lim. [ 0,017 millim.": Nyl., Syn. Lich.], crass. 0,oo3 [,, 0,0 7 

 millim.": Tuck., I. c.J. 



Ad corticem arborum prope Sitio (1000 metr. s. m.) in civ. 

 Minarum, n. 734. TJialhts rhizinis et strato corticali destitutus. 

 Gonldia nostocacea. Apothecia disco vulgo demum convexo aut 

 convexiusculo. Exci^mlum thaUinum gonidiaquc continens. Hy- 

 potheciiim pallidum, ex hyphis irregulariter contextis partim con- 

 glutinatis formatum. Hymenium circ. 0,0 7o millim. crassum, jodo 

 persistenter caerulescens. Epithecium rufescens. Paraphyses arcte- 

 cohacrentes. Asci subclavati, apice membrana saepe modice in- 

 crassata. Sporae 8:nac, distichae, apicibus obtusis. 



6. Pterygiopsis Wainio (nov. gen.). 



ThaUus crustaceus aut fere squamosus, ambitu lacinulato- 

 effiguratus, colorc obscurus, rhizinis hypothalloque distincto de- 

 stitutus, strato corticali supcriorc destitutus, parte superiore im- 

 primis e cellulis gonidiorum (hyphis parcc immixtis) constante,, 

 inferne strato corticali obductus ex hyphis formato sat leptoder- 

 maticis fere parenchymaticc scptatis conglutinatisquc. Gonidia 

 sirosiphoidea (ad Stigoncma Bornct pertineniia), cellulis in se- 

 ries plures dispositis, vagina aurea aut fuscescenti-aurea, sat tenui. 

 Apothecia thallo innata, subimmersa permanentia, disco parvulo. 

 Perithecium proprium nullum distinctum. Paraphyses sat laxe 

 cohaercntes, haud ramoso-connexae. Spwrae 8:nae, ellipsoideae 

 aut subglobosae, simpKces, decolores. 



