328 J. TRIANA ET J.-E. PL.INCIION (w. Nï L*M>E«). 



* Lecidea umbricolor Nyl. m Flora 186/j, p. 619. — Thallus 

 badio-fuscescens vel fascus opacus tenuis rimose areolato-diffrac- 

 tulus vel subareolatus depresso-granulatus, iudeterminatus, hypo- 

 thallo nigro; apothecia nigra plana marginata (latit. mm ,5) 

 sporse 8 nœ incolores ellipsoideae, longit. mm ,008-0 mm ,010, 

 crassit. mm , 005-6, parapbyses crassiusculee (crassit. mm ,Q02) 

 apice sensim incrassato infuscatee, hypothecium incolor parte 

 infera tenui fusca. ïodo gelatina hymenea cserulescens (thecse 

 apice intensius tincta). 



Hab. Bogota, ad saxa arenaria, altit. 2600 metr. (Lindig). 



Obs. — Vix differt a L. tenebrosa Bogotensi nisi thallo tenuiore et apo- 

 theciis minoribus. 



20. Lecideà disciformis Fr. in Mou g. 67. Vog. 745 (anno 

 1823); Nyl., Lich. Scandinav., p. 236. ° 



Hab. Honda, ad Andesitem, altit. 250 metr. (Lindig). Rio Magdalena, 

 corticola, altit. 100 metr. (idem); sporis longit. circiter mm , 01 8, crassit. 

 mm ,007. 



21. Lecidea sanguinariell a Nyl. — Thallus albidus tenuis 

 vel tenuissimus minute subgranulato-inaequalis, nigro-limitatus, 

 intus (salteni hinc inde) coccineo-erythrinosus et passim minute 

 coccineo-sorediellus ; apothecia nigra parva (latit. ,nm ,3-0 m,n ,/i), 

 prominula, plana, marginata, excipulo basi nonnihil constricto 

 (inde juniora substipitata), intus concoloria; sporse 8 DI fuscse 

 (vel fusconigrescentes) oblongse i-septatse, longit. mm ,011-16, 

 crassit. mm ,0040-0 mm ,00i5, p^araphyses haud bene discrète, 

 hypothecium nigrum. Iodo gelatina hymenialis cserulescens. 



Hab. Rio Negro, ad corticem, socia Yerrucoriœ dilutœ Fée; altitudine 

 1200 metr. (Lindig). 



Obs. — Species distinctissima thallo intus erythrinophoro, apotbeciis 

 substipitatis. Apothecia lamina tenui visa epithecium ostendunt infusca- 

 tum tenue, hymenium altit. circiter mm ,055, hypothecium altit, mm ,1. 

 Sporse fere sicut in Lecidea nigritula. 



22. Lecidea stellulata Tayl. in Mack., FI. Hib., II, p. 118. 

 — Thallus albus tenuis areolato-rimosus hypothallo nigro 



