276 МВ. C. KNIGHT ОМ NEW-ZEALAND LICHENS. 
LECIDEA ATRO-MORIO, Kn. (Plate XXXVII. fig. 6.) 
Thallus nigro-cinerascens tenuis squamulosus, squamulis minutis rotundis planis rufe- 
scentibus nitidis ad ambitum plerumque minute furfuraceis. Apothecia atra parva 
plana ex hypothallo nigricante inter squamulas denudato oriunda, squamulas haud 
superantia, interdum margine thallino spurio granulis minutissimis cincta. Spore 
minutee ovoideze v. globosze, longit. “0065 mm., erassit. “005 mm. Gonidia magna. 
Hypothecium fuscum. Ай saxa. 
LECIDEA SUBLAPICIDA, Kn. (Plate XXXVII. fig. 7.) 
Thallus granulosus indeterminatus cinereo-albus. Apothecia in thalli lacunis szepissime 
confluentia adpressa aterrima nuda planiuscula v. concaviuscula, margine tenuissimo 
atro undulato, paraphysibus tenuibus conglutinatis. Sporæ in ascis ventricoso-clavatis 
parvulze ovoidez simplices hyaline longit. "005 mm., crassit. “004 mm. Stratum 
hypothecii subhymeniale atrum. Ad saxa. 
Differs from Г. lapicida іп its smaller ovoid spores, much finer paraphyses, and black 
hypothecium. In 7. lapicida the subhymenial stratum is slightly coloured, and the 
inferior stratum a thin black line continued from the margin. 
LECIDEA NIGRESCENS, Kn. 
Thallus nigro-cinerascens tenuis levis indeterminatus. Apothecia atra minuta convexa 
emarginata, paraphysibus conglutinatis. Spore in ascis ventricoso-clavatis minute 
ovoideze simplices hyaline longit. "004 mm., crassit. 008 mm. Stratum hypothecii 
subhymeniale atrum. Ad saxa. 
LECIDEA SCHISTACEA, Kn. (Plate XXXVII. fig. 8.) 
Thallus schistaceus determinatus tenuis squamulosus, squamulis rotundis adpressis minu- 
tissimis pruinosis hypothallo nigro. Apothecia nigra mediocria v. parva squamulas 
superantia marginata disco plano, margine prominente interdum undulato. Spore 
minute ellipsoidez incolores, longit. “008 mm., crassit. “004 mm.  Hypothecium 
nigrum, Ad saxa. 
LECIDEA SUBCOARCTATA, Kn. (Plate XXXVII. fig. 9.) 
Thallus einereo-albus areolatus v. areolato-granulosus v. continuus.  Apothecia conferta 
fusca v. atro-fusca adnata sat parva convexa, margine integerrimo pallido v. dilute 
fusco nudo demum evanido. Spore in ascis ventricoso-clavatis simplices ovoidex 
incolores, longit. “011 mm., crassit -007 mm. — Hypothecium album. Ad saxa. 
Differs from Z. coarctata in the much smaller ovoid spores, the ventricose ascus, and 
white есіне 
| LECIDEA SUBBADIO-ATRA, Kn. (Plate XXXVII. fig. 10.) 
Thallus fusco-cinereus rimulosus zequalis. Apothecia nigro-fusca convexa marginata, 
— dilute concolori in statu juvenili prominente, demum obscurato. Spore 
