Opegrapha] i. discolichenes (Wainio). 443 



6. 0. ochracea Wainio, sp. n. 



Thallus tenuis, leviter verruculoso-insequalis, pruina albido- 

 ochracea, opacus, continuus aut rimulosus, partim linea nigricante 

 limitatus. Apothecia approximata, elevata, elongata aut oblonga 

 aut parce etiam ellipsoidea, long. 2 ad 0'3, latit. 0'25 ad 0-3 mm., 

 leviter flexuosa aut sat recta, simplicia aut raro furcata. Peri- 

 thecium fuligineum, integrum, labiis hiantibus, ochraceo-pruinosis 

 aut denudatis, Isevigatis. Discus dilatatus, ochraceo-pruinosus 

 aut demum plus minusve denudatus. Hypothecium subhymeniale 

 tenue, pallidum. Hymenium et bypothecium subhymeniale jodo 

 persistenter cserulescentia. Epithecium fuscofuligineum. Para- 

 physes ramoso-connexfe. SporiB Snse, decolores, S-septatsp, long. 

 0'014, crass. 0'004 mm., halone nullo indutfe. 



LoANDA (0 ad 1000 ped. s.m.). — Ad corticem Cordioi prope Boa 

 Vista. No. 370. 



7. 0. albocinerea Wain., sp. n. 



Thallus tenuis, sat Ifevigatus, albus, opacus, continuus aut 

 partim subdispersus. Apothecia bene approximata, semi-immersa, 

 oblonga aut partim ellipsoidea rotimdatave aut diiformia, simplicia 

 aut 3-radiata, recta aut curvata flexuosave, long. 0"8 ad 0'2, latit. 

 0'3 ad 0'2 mm. Perithecium fuligineum, integrum, labiis hianti- 

 bus, margine tenui demum denudatis, latere strato thallino 

 obductis. Hypothecium subhymeniale fuscescens. Discus dila- 

 tatus, tenuiter caesio-pruinosus. Hymenium jodo dilutissime 

 ciBrulescens, dein vinose rubens. Epithecium fuscescens. Para- 

 physes ramoso-connexse. Sporse 8nse, decolores, S-septatse, long. 

 0-018 ad 0-023, eras.?. 0-003 ad 0-004 mm., halone nullo indutte. 

 Pycnoconidia filiformi-cylindrica, curvata, long. 0014 ad 0-012, 

 crass. 0-0007 mm. 



LoANDA (0 ad 1000 ped. s. m.). — Ad truncos SterciiUce in collibus 

 prope Boa Vista. No. 382. 



8. 0. subrimulosa Nyl., Fl. 1866, p. 293, Wright, Lich. Cub. 

 n. 1036. (in herb. meo). 



Thallus tenuissimus, cinereo-fuscescens. Peritheciuiri fuli- 

 gineum, integrum, basi crassum. Hymenium jodo vinose rubens, 

 baud cserulescens. Epithecium fuscescens, KHO non reagens. 

 Sporse 8n«, decolores, o-septatse, long. 0-018 ad 0-022, crass. 0-003 

 ad 0-0035 mm., halone nullo indutse. 



GoLUNGO Alto.— Ad corticem arboris Artocarpese Musubiri (i.e. 

 Jlyrianthus arboreiis) prope Alta Queta. No. 375. 



9. 0. (Pleurothecium) prosodeoides Wain., sp. n. 



Thallus tenuis, sat Isevigatus, glaucescens aut olivaceo-glau- 

 cescenti-variegatus, opacus, continuus, linea nigricante limitatus. 

 Apothecia approximata, elevata, elongata oblongave aut parcius 

 etiam ellipsoidea, recta aut curvata, long. 1 ad 0-3, latit. 0-2' mm,, 

 simplicia. Perithecium fuligineum, dimidiatum, basi parte angusta 

 deficiens, labiis Itevigatis, conniventibus. Hypothecium pallidum- 

 Discus rimaeformis, nigricans, nudus. Hymenium jodo vinose 

 rubens, baud cserulescens. Epithecium decoloratum. Paraphyses 



