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PRÔDROMUS FLOR/E NÔVO-GRANAÎENS1S. 25 



23. Verrucaria obvoluta Nyl. — Thallus albidus subleprosus 

 tenuis ; apothecia nigra (perithecio intègre nigro), ostiolo puneti- 

 formi minutissimo pallido vel fuscescente, sat parva vel fere me- 

 diocria; sporae fuscescentes vel fuscae, ellipsoidese 3-septatge 

 (pariete sporali distincto), longit. mm ,018-19, crassit. mm ,008- 

 mm ,010, paraphyses graciles non confertse. 



Choachi, altit. 2800 metr., ad truncum Cyatheœ (coll. Lindig. 809). 



Obs. — Locum optime habeat ante Verrucariam subvelatam, licet 

 quoque affinitatem offerat cum V. farrea (Ach.) Nyl. in Bot. Nous. 

 1853, p. 183, Pyrenoc.,?. hl (1). 



2/l. Verrucaria diremta Nyl. — Similis V. dilutœ Fée (V. Cin- 

 chonse Nyl., Pyrenoc, p. 57) (2), sed macula thallina determi- 

 nata nigricanti-limitata, apothecia perithecio dimidialim nigro. 

 Sporse incolores oblongo-ellipsoidese S-septatse, longit. mm ,023- 

 26, crassit. mm , 008-9, paraphyses graciles. 



Villeta altit. 2000 metr., ad corticem lsevem (coll. Lindig. 2827). 



Obs. — Haud esse videtur nisi varietas Verrucariœ dilutœ Fée, Ess., 

 Suppl., p. 85. 



25. Verrucaria contendens Nyl. — Thallus obsolelus vel ma- 

 cula pallescente subdeterminata indicatus; apothecia nigra sub- 

 hemisphserico-convexa minora (latit. circiter ram ,3), nonnihil 

 catervaria; sporse incolores ellipsoideae vel oblongo-ellipsoidese 



(1 ) Memoreturhic obiter Verrucaria majuscula Nyl., cui thallus hypophlœodes 

 linea nigricante vel obscura limitatus ; apothecia mediocria vel majuscula (ssepe 

 latit. Imillim.), perithecio dimidiatim nigro, depresso aut convexiusculo, papilla 

 ostiolari sat distincta aut alibi haud distincta ; sporae incolores oblongo-ovoideae 

 3-septata3, long. mm , 033-35, crassit. o mm ,1 2-1 3, paraphyses distinctae mé- 

 diocres vel gracilescentes, gelatina hymenea iodo lutescens. Ad corticem laavem 

 in Insulis Bonin,ex. hb. Tuckerman. Ex stirpe habeatur Verrucariœ epidermidis 

 apotheciis et sporis majoribus, thallo obscure limitato insignis. Accedit, quodam- 

 modo versus V. planorbem. 



(2) Non est, ut l. c. perperam dicitur, Verrucaria Cincho7iœ Ach., Syn. } 

 p. 90, nomen pertinens ad V. prostantem Mnt., Nyl., Pyrenoc, p. 57, cui 

 nomen V. Cinchonœ sit restituendum. 



