DR. J. MUELLER ON NEW LICHENS. 459 
late, ad latera valide thallino-duplicate, longitrorsum profunde 
plurisulcate, acie denudato-nigre; perithecium nigrum, basi 
valide completum ; spore in ascis 2—4ne, majores circ. 110 » 
longe et 25 » late, crebre parenchymatose; locelli in series 
transversales 20-23 dispositi, in quaque serie 4—-5.—Juxta Gra- 
phinam subserpentinam, Muell. Arg., sc. Graphidem subserpen- 
tinam, Krempelh. in Flora (1876), p. 381, non Nyl. (qux thallo 
levigato, lirellis tenuioribus et ascis monosporis differt) locanda 
est.—Corticola, in prov. Rio de Janeiro: Glaziou, n. 11777. 
Ex eadem affinitate in hb. Kew adest species brachycarpa: 
Graphina dealbata, sc. Graphis dealbata, Nyl. in Flora, 1869, 
p. 123; Krempelh. in Flora (1876), p. 384; Burchell, n. 2098. 
23. GRraPHINA (§ RHABDOGRAPHINA) PACHYPLEURA, Muell. 
Arg.; thallus albus v. glauco-albus, mediocris, demum rimosus, 
rugulosus et sublevis ; apothecia conferta, vulgo simplicia, circ. 
4-11 mm. lata, longitudine diametrum semel usque ter equantia, 
ambitu sepius tamen late elliptica, recta v. subrecta, basi paullo 
innata, thallino-vestita; labia conniventia, longitrorsum pro- 
funde 3-5-lamelloso-sulcata; lamelle in acie nudato-nigre ; 
perithecium nigrum, basi valide completum ; spore in ascis soli- 
tari, hyaline, circ. 150 p longe et 25 w late, crebre parenchy- 
matose#.—Est species insignis, apotheciis ambitu eximie latis et 
lamellosis, ceterum ad Graphinam Acharii, Muell. Arg., et Gra- 
phidem albostriatam, Wain., proxime accedens.—Corticola, prope 
Rio de Janeiro (Glaziou, n. 16671 pr. p.). 
24. GRapHINA (§ SOLENOGRAPHINA) crassa, Juell. Arg. ; 
thallus argillaceo-flavicans, mediocris, continuus v. demum rimoso- 
fissus, superficie subpulveraceo-rugulosus, opacus ; lirelle super- 
ficiales, ambitu late, sepius 14 mm. late et 2 mm. longer, 
ceterum longitudine 14-3 mm. attingentes simplices, elevato- 
crasse, basi paullo constricte, undique thallino-vestite, non 
verrucose, arcte conniventi-clause, quasi striola longitrorsa 
tantum aperientes ; perithecium nigrum, basi valide completum ; 
labia integra; spore solitarie, cire. 140-160 p longe, 25-28 p 
late, dense multilocellose.—Habitu ad jamaicensem Gr. granu- 
losam, Muell. Arg., accedit, sed lirelle non sulcate nec grosse 
verrucose. Species in hac sectione nulli arcte affinis et insuper 
habitu insignis ad Graphinam cleistomma, sc. Graphidem clei- 
stomma, Nyl. Prodr. Nov. Gran. p. 134, accedens, sed lirelle 
