462 DR. J. MUELLER ON NEW LICHENS. 
obtusa, integra, conniventia, apice nudo cum rima sulciformi 
nigri; perithecium in sectione apice utrinque rufo-nigrum, 
ceterum pallidum, v. sub lamina anguste fulvum; epithecium 
fusco-nigrum; spore in ascis 2-8nx, 45-60 p» longe, 15-22 p 
late, multilocellose, locelli in series 8(—-10) dispositi, in quaque 
serie 3-4.—Juxta Ph. platyloma, Muell. Arg., et Ph. subsordidam, 
Muell. Arg., ubi spore valde majores et solitariw, inserenda est. 
A cel. Montagne, in Hook. Lond. Journ. Bot. iii. p. 3, pro Ope- 
grapha rigida, Fée, habita et descripta, et dein a cl. Nylander, 
Enum. p. 134, sub Lecanactide flexuosa nominata et nuperius 
in suis Lich. Japon. p. 113 sub Graphide flexuosa breviter 
descripta fuit.—Corticola, in inss. Philippinis: Cuming, n. 2519. 
31. ARTHOTHELIUM FERAX, Muell. Arg.; thallus e pallide 
olivaceo umbrato-fuscescens, tenuissimus, subrugulosus, apo- 
theciis abortivis ;!;-25 mm. latis orbicularibus v. paullo angulosis 
copiose adspersus ; apothecia evoluta 3-1 mm. lata, plano-convexa, 
orbicularia v. leviter et obtuse angulosa, extus opaco-nigra, intus 
olivaceo-nigra; spore 8ne, hyaline, 25-28 pw longer, 10 p late, 
elongato-obovoidez, 6—8-loculares, loculi nonnulli intermedii semel 
longitrorsum divisi.—A simili et proxime affini A. interveniente 
(Nyl.) Muell. Arg., cujus spore conveniunt, differt thallo non 
albo et apotheciis subregulariter orbicularibus (et presentia apo- 
theciorum abortivorum). Ab <A. infuscato, Muell. Arg. Consp. 
Lich. Nov. Zel. n. 628, dein recedit colore thalli et sporis 
minoribus.—Corticola, Tasmania: Archer. 
32. CHIODECTON VIOLACEUM, Muell. Arg. ; omnia plante albe 
ut in Ch. sanguineo, Wain., sed margo thalli intense vinoso- 
violaceus aut obscure purpureo-violaceus; hypothallus similiter 
purpureo-violaceus.—Colore sanguineo-coccineus omnino deest. 
—Corticola, in Brasilia tropicé: Burchell, nn. 1006-1007 (tantum 
sterilis lecta). 
33. Sarcoerapna ($ PHx0GLYPHIS) AURANTIACA, Muell. Arg. , 
thallus pallide argillaceo-albus, mediocris, reticulato-rimulosus ; 
areole fertiles turgid et confertim fertiles; lirelle irregulariter 
astroideo-ramose, intricate, prominule, strato thallino ore 
albiore obtecte et subclause, dein marginibus obliterantibus 
aperte et discus planus 12, mm. latus nudus et lete aurantiacus, 
tum plane denudatus et cicatrices ipse marginum plus minusve 
aurantio-tinctz ; perithecium proprium in sectione discernendum 
