458 DR. J. MUELLER ON NEW LICHENS. 
cate, juniores apice lines instar nigre, evolute superne latius 
pure nigra ; labia conniventia, longitrorsum 3-4-fisse ; perithe- 
cium nigrum, basi valde completum ; spore 8nx, juniores circ. 
70 » longe 11 pu late, longo tractu equilate, 12-loculares (bene 
evolute verisimiliter majores et loculi numerosiores).—Inter 
Gr. tenuescentem, Nyl., et Gr. flecibilem, Krempelh., inserenda 
est.—Corticola, in prov. Rio de Janeiro: Glaziou, n. 5498 pr. p., 
cum Gr. tenuescente mixta. 
20. Graruis (§ Fissurina) GompHospora, Muell. Arg. ; 
thallus flavescenti-glaucus, crassiusculus, valide rugoso-glebosus, 
superficie levis et nitidulus; lirelle circ. 1-2 mm. longe, juniores 
vix nisi rimula lineari indicate, dein magis emergentes, valide 
thallino-corticate, cum cortice + mm. late, cum thallo concolores 
et leves ; rimula ostiolaris demum albicans, semper angustissima; 
perithecium in sectione superne utrinque striguliforme, olivaceo- 
fusculum, cxterum hyalinum; discus concavus; hypothecium 
byalinum ; lamina in sectione ;3, mm. lata, basi late rotundato- 
obtusa; spore in ascis 8nx, late globoso-ellipsoidex, utrinque 
rotundissimo-obtuse, 4-loculares.—Habitu et characteribus op- 
time accedit ad Graphidem insidiosam, ubi thallus et lirelle satis 
conveniunt, sed ambitus sporarum et earum dimensiones differunt. 
—Corticola, in Pic du Pouce in ins. Mauritii. 
21. Graputs (§ Fissurta) tecanontins, Muell. Arg.; thallus 
albus, pulverulento-tenuissimus ; lirelle subemerse, } mm. longe 
et late v. diametro leviter longiores, thallino-cincte ; labia mox 
late hiantia, leviter prominentia; perithecium basi lata deficiens, 
lateraliter evolutum, latera in sectione inferne paullo patentia, 
fumoso-fuscidula v. fuscidulo-obscura, basin versus pallidiora ; 
discus siccus niger, madefactus aquoso-pallens, suborbicularis et 
nudus; spore 8nx, 16-18 # longe, 8-9 pw late, utrinque late 
obtuse, 4-loculares.—Species habitu singularis, fere Ocellularia, 
primo intuitu Lecanore speciem simulans, at structura perithecii 
est Graphidis. Juxta Gr. platycarpellam, Muell. Arg. in Bull. 
Soc. Bot. Belg. xxx. p. 81, inserari potest —Ad truncos Palmarum, 
in insula Barbados: Anderson. 
22. Grapuina ($ RuappoGrarHIna) TUBERCULIFERA, Muell. 
Arg. ; thallus glauco-albidus, tenuis, nitidulus, crebre tuberculi- 
formi- v. bulluliformi-rugulosus; lirelle basi immerse, valde 
elongate et subflabellato-ramosa, majores 10 mm. longe, $ mm. 
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