242 J. TRIANA ET J.-E. PLANCHON. (w. NYLANDER.) 



5. Chiodecton hypochnoides Nyl. — Forte nimis accedit ad 

 Chiodecton spkœrale, sed differt thallo (albo vel albido) ambitu (ex 

 hypothallp) fuseobyssino (byssino-radiante, in Ch. sphœrali sim- 

 pliciter obscure limitato). Apotheeia nigra epitheciis punctiformi- 

 bus vel oblongis minutis plus minus confluentia (et passim tum 

 quasi rosulato-radiantia), in verruculis stromaticis albis. Sporae 

 fusiformes 3-septatœ, longit. ffim , 025-27, crassit. mm ,003. 

 Gelatina hymenea iodo cœrulescens, thecae vinose rubescentes. 



Ad corticem arborum. Villeta, altit. 2000-2300 (coll. Lindig. 2632). 



VIII. — MYC0P0RUM Nyl. 

 Nyl., Classif. Lich., 2, p. 4 86, Lich. Scandinav . , p. 291. 



1. Mycoporum pycnocarpum Nyl. in Flora, 1858, p. 381. — 

 Thallus albidus tennis opacus rimulosus, late extensus, apotheeia 

 nigra opaca parva (latit. ,mn ,4-0™ m ,5), leviter vel obsolète gib- 

 berulosa (1-5-hymenea), ssepe subsuiïusa, intus hymeniis albis; 

 sporae 8 1KC incolores oblongo-ovoidese murali- divisae ( seriebus 

 transversis 0-10, série quavis sensu longitudinali semel vel ter 

 divisée), longit. mm ,032-36, crassit. mm ,015-18, paraphyses 

 nullse Gelatina hymenea iodo haud tincta (protoplasma thecarum 

 vinose rubens). 



Villeta, altit. 2000 metr., ad cortices (coll. Lindig. 891). 



IX. — MELASPILEA Nyl. 



Nyl., Prodr. Gall. Alger. , p. 170, Lich. Scandinav., p. 263. 



1. Melaspileà opegraphoides Nyl. —Thallus macula indeter- 



innata) nigricantia minuta punctiformia, seriatim vulgo disposita, plura in qua- 

 vis verruca stromatica; sporaD 8 nœ incolores ovoideae vel oblongo-ovoidese, 

 3 septatse, longit. mm ,0 18-20, crassit. mm ,007, hypothecium fusconigrum. 

 Gelatina hymenea iodo cœrulescens, deinde vinose rubescens. Ad corticem Bon- 

 plandiœ trifolialœ in America Meridionali(ex hb. Ach.). Facie haud parum trype- 

 thelioidea, quare etiam olimdictumfuit « Trypethelium paradoxum » ab Achario. 





