LICHENS. 145 



llirro, roiiimc dans lo Lfi-idca (idinii Ilii(>, ci-dessus, 11° 94, (îst séparé de 

 rh\|inUH'riiiiu iiarunc bande blanchâtre. 



3. HYPlI.r. COUTICIS FASTIGI.VT.-f: ET C.VIMTAT.i;. 



98. Lecidea Gharcotii Une; sp. nov. 



Thallus in superficie sa\i airo cinereus, in ejus declivitatepallide cine- 

 rescens al(|ue in utroquo ioco passim rufescens, madefactus ubique'vcl 

 oi)Scui'e vel 1,1'le rurescens, ()i)acus, aroolalus ac plagain 30 cent, lalani, 

 a'(|ualaui, aliis l/iciienibus in andiilu feresemper circumdatam,sedin parte 

 iiberaan!.;usta([ucbypothallo nigro iimitatam l'ormans; areolœ 0,2-1 ,') niiil. 

 lata", 0.3-0,:i"i niill. crassa;, sîepe variiformes, passim oblongœ, aut con- 

 tigua:" aut riinis angustis separata», in superficie heves seu parum rugu- 

 loscP ; intus albida', hydrate kalico licjuorem testaceum producentes, 

 basini versus lateritite, rai)hidibus productis ; inferne anguste tusca- ac 

 in ipsa liasi nigrte. Cortex su[)erior nigricans, pallide atratus aut obscure 

 rufescens, hydrate kahcG testaceus et 2î)-30 <j. crassus ; ejus hyphfu 

 fasligiata^ capitata^ capile 4-6 [j. crasso, interdum etiam capitato raniosa', 

 verticales vel pauluni obliqua' et tuncparvos meatus prœbentes,articulala' 

 articulis sive spheericis, aliquando ullinio capiti similibus, sive et rarius 

 brevit(M- oblongis, luniine 2 [j. lato, atqu<' zona albida 40-100 ;y. crassa, 

 cellulas collapsas ac [irotoplasinate orbatas continente tectœ. Gonidia 

 |)allide virentia, ju'otococcoidea, 12-1(1 y. lata, meinbrana incrassata, 

 stratuni crassuin in granuiis sub cortice formantia, s<h1 singula singulis 

 hypliis splia'rico articulatis circumdata ; in partibus Ihalli velerriinis 

 sa?pe delirientia. Ilyphte nieduUares iodo non tinctœ, 4,Ij <j. crassa-, in 

 granuiis veilicales et sphicrico articulata^, in partibus vetustioribus obli- 

 ((Uâ' vel intricatte, oblongo arlicnlala' aL(|ue in basi nigrescentes et ver- 

 ticales. Apothecia 0,4-0,7 niill. lata, ex toto nigra, in areolis nata et 

 supei- cas dein sessilia, dispersa, rarius plura eonflucntia, in basi panluni 

 constricta, niargine tenui, |)atMnn proininenle, interdum su|)ra thallnni 

 anguste recurva al(|U(' disco piano, dein convexo, ruguloso nudo(pu; 

 pra?dita. l'eritheciuni extra commissura^ punctum lunatum l't Ibailo 

 hyphis, cavitate obliterata, religatum, nigrum et intus albiduni, iodo non 

 tinctum, in margine 00 p. crassum et ex hyphis verticalibus, lateraliter 



Ej-pédition C/iarcot. — IIle. — Lichens. !•' 



