7G Acta Societatis pro Fauna et Flora feimica, VII. 



Fr., Lich. Kiir. Ref. (1831) p. 427; Xyl., Cons\). Thclotr. (USdl) p. 1)5; Tuck., 

 Oen. Lich. (1872) p. 135, Syn. North Aiii. (1882) p. 223; Nyl. in llue Addcna. 

 (1886) p. 124; Moller, Cult. Fleclit. (I887j p. 22. Trib. Thelotremcae Miill. 

 Arg., Graph. Feean. (1887) p. 3 & 5. 



Tallus crustaccus, uniformis, aut intcrdum liypoplilocodcs 



endo[)lilocodcsvc, hypolhallo et hyphis mcdullai-ibus substrato ai- 



iixus, rhizinis nuUis, homocomcricus aut saepc supcrnc strato cor- 



ticali obductus tcnui, amorpho, ex liyphis lcnuibus longiludinaUbus 



leptodcrmaticis conglutinatis formato, strato medidlari stuppeo, 



toto gonidia continente aut (in specicbus thallo crassiore instruc- 



tis) parte infcriore gonidiis destituto, ex hyphis contcxto tenui- 



bus, leptodermaticis. Gonidia chroolepoidea (ad Trentepohliam 



umbrinam pertinentia: conf. Bornet, Rech. Gon. Lich. p. 10), 



cellulis minutis, anguloso-subglobosis aut cllipsoidcis aut par- 



cius etiam oblongis, saltem primum concatenatis, fila saepe 



parce ramosa formantibus, demum saepe pro parte etiam libcris, 



membrana sat tenui aut raro crassa, flavovirescentia. Apothecia 



thallo innata (aut parte inferiore substrato immersa), immersa 



pcrmanentia aut demum emergentia et verrucas formantia, ro- 



tundata aut raro oblonga, disco bene aut leviter thallo verrucaeve 



impresso, aut urceolato, punctiformi aut dilatato. Hymenin-m 



simplex integrumque aut columella peritheciali transjectum vel 



varie divisum compositumve, hypothecio subhymeniali tenui im- 



positum. Excijmluni primum clausum, demum ostiolo parvo aut 



lato aperiens aut demum ad instar Lecanorae apertum, saitem 



ad margincm duplex, ex amphithecio (exipulo thallode) et peri- 



thecio (e. proprio) constans. PeritJtecium integrum aut saepius 



basi apothecii deficiens, ex hyphis tenuibus leptodermaticis con- 



glunatis formatum (ccllulis saepe brevibus aut sat brevibus), su- 



perne aut extus amphithecio obductum gonidia continente, tex- 



tura thallo consimili, in speciebus corticoHs fragmenta substrati 



includente. Paraphyses numerosae, vulgo neque ramosae, nec 



connexae, nec spinuloso-verruculosae. Asci membrana tenui. 



Sporae 8:nae solitariae, oblongae aut ellipsoideae aut ovoidcae 



aut fusiformes aut elongatae, decolores aut demum obscuratae, 



septatae et loculis lenticularibus instructae aut murales, vulgo 



jodo violascentes caerulescentesve aut raro haud reagentes (cete- 



rum hymenium jodo haud reagens). .^fionceptac^da pycnocoyii- 



