Cliiodecton. 137 



cium integrum, fuligineum, labiis primum conniventibus et demum 

 hiantibus. Discus primum rimaeformis, clemum dilatatus, conca- 

 vus aut planiusculus, nigricans, epruinosus. Sporae obscuratae, 

 5 ( 6) -septatae, long. 0,oi5 0,0 2i, crass. 0,oo6 5 0,oo8 millim. 

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

 Minarum, n. 901. Thallns leviter inaequalis aut passim parce 

 granulosus, opacus. Gonidia chroolepoidea. Apothecia opaca. 

 Hijpothecium subhymeniale sat tenue, pallido-fuscescens. Hyme- 

 nium circ. 0,0 6o 0,0 5 milHm. crassum, jodo vinose rubens (hy- 

 pothecium subhymeniale primum dihite caerulescens, demum vi- 

 nose rubens). Paraphyses 0,ooi5 miliim. crassae, apice haud 

 incrassatae, ramoso-connexae. Asci obovoidei, membrana tota 

 leviter incrassata. Sporae 8:nae, primum decolores, dein mox 

 bene obscuratae, oblongo-ovoideae, apicibus rotundatis, pariete 

 leviter incrassato, halone nullo indutae, ceUuhs brevioribus, quam 

 latis, locuhs subcyhndricis aut demum fere lenticularibus. 



5. Chiodecton. 



Ach., Syn. Lich. (1814) p. 108 (emend.), Glypli. et Chiod. (Trans. Linu. 

 Soc. XII, 18151818) p. 43 (em.); Fee, Mon. Chiod. 1829 (em.); Tiil., Mem. 

 Lich. II (1852) p. 208, tab. 10 fig. 24-27 (em.); Mass., Ric. Lich. Crost. 

 (1852) p. 149 (em.); Nyl., Ess. Noiiv. Classif. Lich. (1855) p. 190 (em.); Mass., 

 Esam. Comp. (1860) p. 43 (em.); Th. Fr., Gen. Heterolich. (1861) p. 96 (em.); 

 Tuck., Gen. Lich. (1872) p. 212 (em.); Bornet, Rech. Gon. Lich. (1873) p. 16, 

 tab. 8 fig. 1; Leight, Lich. Great Brit. 3 ed. (1879) p. 435 (em.); Nyl. in Hue 

 Addend. (1888) p. 263 (em.). Stigmatidium, Meyer, Entw. Flecht. (1825) p. 

 328 (pr. p. et em.); Nyl., Ess. Nouv. Classif. Lich. (1855) p. 188 (em,). Flaty- 

 grapha Nyl., 1. c. (em.). 



Thallics crustaceus, uniformis, hypothaUo aut hyphis medul- 



laribus substrato affixus, rhizinis et strato corticah destitutus. 



Stratum mecliUlare stuppeum, hyphis intricatis, tenuibus, lepto- 



dermaticis. Goniclia flavovirescentia, chroolepoidea, ceUuhs mi- 



nutis, anguloso-globosis aut ehipsoideis aut oblongis, sahem pri- 



mum concatenatis, filamenta ramosa formantibus, demum saepe 



pro parte etiam hberis, membrana vulgo sat tenui instructis, aut 



simphcia, globosa, magna (diam. circ. 0,0 2 0,0 3 milhm.), pa- 



chydermatica [in subg. Schismatomma (Flot. et Koerb.) Wai- 



nio], aut phycopeltidea, celluhs concatenatis et in membranam 



connatis pn subg. Manzosia (Mass).]. Apothecia thallo innata 



