LICHENES. 195 



mulamque extas corticataiiï formantes (conf. Hue Caus. sur les Pannar., p. LVI, note 2 

 et p. LIX, note 2). 



Species lacinulis thallinis, supra apotheciorum discum gyrose dispositis, atque, median- 

 tibus seu perithecii hyphis, seu ipsis paraphysibus, formatis vere conspicua. Nomen atro- 

 fumosa a cl. Knight datum definitumque, imo fîguratum, prioritate gaudet proindeque 

 merito anteponendum videtur. 



468.PannariapezizoidesLeight.,i[,«W<.-/^/or.6'r.5/'//.,ed.l'', 1871,p.l65eted.3'',1879, 

 p. loi, Arn., Lich. frûnkisch. Jura, p. 73, ïia. Flora 1884 et Wain. Lich. Caucas, p. 308; 

 Lichen pezizoides Web. Spicileg. Flor. Goettlng. (1778), p. 200; Parmelin brunnea a. 

 eth. pesisoides El. Fr. Lichenogr. europ. reform. (^1831), p. 93; Lecidea microphylla y. 

 pezizoides Schœr. Lich. helvet. Spicileg., sectio 2", 182G, p. 111 ei E?iu?n. critic. Lich. 

 europ. p. 99 ; Lichen brunneus Sw.,in Nov.Act.Acad. Upsal.,t. IV(178i), p.2i7 ; Parrnelia 

 brunnea Ach. Method. Lich. (1803), p. 186 (exclus, var p. et y.), Lichenogr. univ., p. 419 et 

 Synops. Lich., p. 193; Pannaria brunneaMas?,., Ricerc. Lich. crosios. (1852) p. 113, Nyl., 

 Essai nouv. classif. Lich., second Mém., 1855, p. 176, Lich. Scand., p. 123, Sgnops. 

 Lich., II, p. 31 et apud Hue Lic/i. exot., n. 1066, Schwend., Untersuch. Flechtenth., 1862, 

 p. 69 (Pannaria spec.),tab. XI,flg. 3-6 et Algenlyp. Flechtengonid., p. 31, Tuck., Synops. 

 North Americ. Lich., I, p. 121, Reinke, Abhandl. Flecht., p. 2i0, fig. 161, I, et 162 atque 

 Harm., Catal. Lich. Lorr., p. 248, tab. XV, fig. 11 et 12; Lecanora brunnea Dub. Bol. 

 GalL, II, 1830, p. 666; Trnchyderma brunneuni Norm. Conat. j^rw.m. redact. nov. gcn. 

 nonnull. Lich., 1852, p. 18 ; Lepidoma brunneum pezizoides Bagl. Enum. Lich. 

 Ligur., in Mem. Acad. szienz. Torino, ser. 2, t. XVII, 1857, p. 391. 



Exsiccata in herb. Mus. paris, et in meo : Parmella brunnea Fr., Tuck. Lich. Amer, 

 sept, exsicc, n. 89; Lecidea microphylla y. pezizoides Seha^r. Lich. helvet. exsicc. 

 n. 160; Amphiloma Hypnorum Hepp Flecht. europ., n. 174; Pannaria brunnea Mass., 

 Nyl. et Norrl. Herb. Lich. Fenn., n. 121, Harm. Lich. Lothar., n. 417 et .Tohns. Novtli 

 Engl. Lich.-Herb., n. 253; Arn. Lich. monac. exsicc, n. 13 et 292. 



In America : in Ohio ad saxa legit Lesquereux, n. 254. 



Thallus cervimis vel pallide aut subcœrulesccnti cinerescens, plagas indeterminatas et 

 sœpe latas formans, satis crassus, parum inœqualis, continuus, opacus et granulato squa- 

 l'.iulosus; squamulœ parvœ, applanatœ, parum longae etutrinque dentatœ,imbricatœvelsuper- 

 positœ connexœque et in centro crustam crassam grosseque granulosam prœbentes, insuper 

 vulgo unicolores, sed in thallo subcœrulescenti cinereo in margine angustissime albido lim- 

 batœ; intus albidœ ; subtus albee, vel rufescentes aut etiam fusconigrae atque hyphis hypo- 

 thallinis nigris aut caeruleo nigris in strato parum crasso munitœ. Cortex plectenchymalicus 

 et crassitudine varians : in squamulis juvenilibus albidus, 8-10 a latuscum celkilissphœricis, 

 lumine 4-6 a lato et paricte tenui; in bene evohitis autem, 20-40 a latus, vel etiam latior et 

 inter gonidia paulum descendens, albidus seu rufescens, cumcellulis sphœroideis velanguloso 

 oblongis, lumine 6-10, vel etiam 14 \i. lato et pariete incrassato, atque supra cellulas zonam 

 c\ternam, 6-lOa latam amorphamque prœbens. Gonidia in exsicc. Tuck. n. 89 cserulescentia, 

 in exsicc. Norrl. n. 121 et in exemplaribus in Vogesis lectis violacea, nostocacea, spha^roidea 

 vel oblonga aut in uno apice clavata, 2,5-6 a lata, in magnis oblongisque glomerulis aggre- 

 gata et sub cnrtice in strato nunc 60, nunc 110 a crasso sita; inter gonidiorum glomerulos 

 hyphœ valide septatœ sicut in Schwend. Untersuch. Flechtenth., tab. XI, fig. 4 ; aliquotiesin 

 squamulis vetustioribus gonidia rara aut defîcientia. MeduUa in squamulis junioribus deficiens ; 

 in vetustioribus 20-160 a (in eadem squamula) crassa ex hyphis superficiel parallelis ramo- 

 sisque et parum stricte coadunatis constans. In zona inferiore, 8-10 a lata, albida vel rul'es- 

 çepte, illee hyphœ striçtigs tantijin coalitee, at(|ue dçin continuateg, 4-6 ij. crassœ, septatœ sec} 



