LICHENES. 205 



nu'.ic ia squamulas parvas, siibimbricatas, in ambitu microphyllino dissectas, in apice breviter 

 ascendentes atque crustam tenuem formantes mutatœ ; intus albidœ ; subtus nigrescentes 

 atque hyphis aut nigrescentibus aut subalbidis etinter arboris corticis cellulas penetrantibus 

 vestitœ. Cortev in speciminibus archetypis a Berlero in ins. Juan Fernandez n. 163'2 (in herb. 

 meo) et a cl. Gay inChile australi lectis (in herb. Mus. parisiens.), necnon in exemplaribus ex 

 Herb.Lindign. 2 623 atque e Java (P. Saubinetii), 40-45 (x latus, albidus, pleetenchymaticus 

 cellulasque sphœricas seii anguloso rotuudas, lumine 6-10 (ji lato et pariete tenui, efficiens 

 atque in zona externa strate aniorpho "vel subamorpho, cellulis parvulis aut fere obliteratis, 

 8-10 a lato tectus ; in laciniis vetustioribus cellulse 12-14 a metientes ; in juvenilibus autem 

 et in thalio exemplaris Wright n. 103, cortex superior 20-25 et etiam 30 ijl latus, similiter 

 formatus, cum cellularum lumine etiam G-10 a lato et strato amorpho 10 a crasso atque tune 

 strata gonidiale medullareque 20 a lata. Gonidia pallide aut cœrulescenti violacea, oblonga 

 vel spha^roidea, 3-5 u. lata, nostococea, in parvis glomerulis subrotundis vaginatisque aggre- 

 gata stratumque 45-50 a latum sub cortice formantia. Medullares hyphœ 2,5-4 a crassœ, 

 albidœ, superficiel parallelœramosœque etlaxe coadunata? acstratum40-G0alatum prœbentes 

 atque in zona infera 8-10 a lata, nigrescentes et strictius aggregatœ; dein extus verticaliter 

 continuatse, 4 a crassœ, nigrescentes aut cœruleo nigrœ, horizontales, ramosœ, stratum parum 

 crassum formantes et intra arboris corticis cellulas pénétrantes et tune pro parte albidee. 

 Apothccia 0,4-1 mill lata, supra squamulas sparsa, excipulo pallide rufo aut fere albido et 

 la'vi, margine integro et parum elevato atque disco rufo, rarius fuscorufo aut nigrescente, 

 piano seu leviter convevo nudoque ornata. Excipulum 60-90, et lateraliter 35-40 y. latum, 

 plectenchymaticum cellulasque sphferoideas, 5-8 y. latas, interne et in margine minores 

 offerens ; subtus hyphae continuatee et squamulae subjacenti adhœrentes. Perithecium plus 

 minusve flavidum, angustum ac ex hyphis horizontalibiis, septatis, stricte coalitis et paucis 

 in marginem ascendentibus constans ; inter utrumquc integumentum nulla gonidia. 

 Paraphyses hyalinœ et sursum tlavidœ aut obscure rufBe,'90 ;;. altœ, 3-4 [jl cra«;s8e, rectœ et 

 flexuosae, arcte cohœrentes, articulât» articulis 10-12, et apicem versus 3,50-5 a longis cum 

 dissepimentis tenuibus et lumine 1,2.5-1,5, interdum in apice 2 a lato, passim connexo 

 ramosœ atque iodo cœrulescentes. Sporœ octonœ, hyalinœ, simplices, in iitroque apice 

 subacutœ, 15-19 a longœ et 7-9 a latœ; apud IS'yl. Synops. Lich., II, p. 39, 12-16 a longœ 

 et 7-9 ij. latœ. 



Viget h;\;c species in Asia (Japonia, ins. Bonin, nunc ins. Ogassawara, ex Herb. of the V. S. 

 North Pacific e.iplor. ExpeiiU. under comm. Ringgold and Hodgers, ISjS-ISoG, in herb. Mus. 

 paris., in ins. Java et Bornéo; non in ins. Ceyionia, nam exemplaria ex bac insula sic a rev. 

 Leighton determinata ad P. Marianam Mùll. Arg. pertinent); in Africa (ins. sinus Guineensis et 

 Tenerilfa); in America tropica et australi (republica Mexicana, Columbia, Brasilia, Bolivia, Chile, 

 ins. Juan Fernandez et sinu Orange) ; in Oceania (Australia, ins. Tahiti et Nova Zelandia). 



476. Pannaria obliterans Hue; J\ nigrocincla * P. obli ferons Nyl. Lic/i. A'ov. 

 Ze/aufl. (J888), p. 50; Panniilarin, nirirociiicla P. obliferans Nyl., apud Hue Lirh. exot. 

 n. 1080; PannelieUa nigrocincla var. nblilcrans Miill. Arg. Consp. sijst. Lich. A'ov. 

 Zeland. (1894), p. 44. 



Thallus in specimine aulbentico ah ipso D'''= Nylander mibi dato, pallide cervinus vel 

 albido cinerescens, tennis, opacus, squamulosus; squamulœ parvœ et totœ adnalœ, parum 

 divisœ et in peripiieria tantum visibiles atque hypothallo nigro circumdatœ, in centre crustam 

 tenuem rimoso diffractam, in superficie raro la'vigatam, sa>pius punctis oblongis, interdum 

 ramosis vel substellatis, obscure cœrulescentibus adspersam formantes; intus albidœ; 

 subtus nigrœ atque hyphis hypothallinis nigris vel nigrescentibus munitœ. Hyphœ hypotbal- 

 linœ extra tballum protentœ atque zonam 1-2 mill. latam irregularemque, passim inter 

 squamulas insulatim apparentem otTerentes. Cortex 30 jx crassus, albidus, plectenchvmaticu§ 



