74 LICHENS. 



saxo non adhcwrcntes simili corlice tolftîcii'cunidata!, sed insupcriore, scu 

 in facie antica amorphazona lanlumniodo exstans. Gonidiaviridia, cysto- 

 coccoidea, i-1 i y. lata, interdum ohloiii^a Ki-IS ;/. longa ac u. lata, mem- 

 branatenui, stratumque usque 100 y. crassuni pi'œbontia; in laciniis sub 

 toto cortice pra'stMitia. llyphaî meduUares corijuseulis cinereis velata^, 

 4 ij, crass*, intricalaj ac veiut in thallo ai'ticulala' ; in pcripheria nunc 

 apice capitataj, nunc plures cellulas U-12 y. ci'assas, nigi'as, pariete niultum 

 incrassato formantes , in basi verticales, ramosa; ac saxoadhairentes. Apo- 

 thecia 1-2, o niill. lata, cupulil'ormia supra crustam dispersa autapproxi- 

 mala, in basi constricta, excipulo albo, aliquando demum atrato lœvique, 

 marf^ine intégra aut rarius crenulata, discum diu ajquante et demum ab 

 00 superata atque disco nigerrimo, ab origine pbino, deinde multum con- 

 vexo nudoque exornata. Excipulum superne sinuatum et 0,6 mill. altum; 

 ejuscortex20-i0a crassus velut tlialli cortex constitutus; subeo gonidialc 

 stratuin lunatum, continuum aut interruptum. Perithecium in margine 

 00-100, sul)tus 100-li)0 y. crassum, superne piirpui-eo violaceuni, bydrate 

 kalico magis violascens ac inlcrne in zona 2^)-30 y. crassa, nigerrimum; 

 ejus hyphaï in margine llabellata! et in centro incrassata-, articulata; aili- 

 culisspha^roideis, pariete incrassato, et arcte coalita;; sub zona nigerrinia 

 stratum 150-200 y. crassum, materia rufesconte hydrate kalico aurantiaca 

 velatum ex hyphis verticalil»us constans; sub eo nulla gonidia. In apo- 

 theciis juvenilibus excipulum 330 {>■ tantum altum et totum hymenium 

 lateraliter vesticns ; perithecium eodemmodo ac superius constitutum, sed 

 ejus hyph* in margine non coloralai, apice tantum nigro capital*; sub zona 

 nigerrima, stratum rufescens deficiens ac in tolam medullam gonidia dis- 

 persa. Paraphyses purpureo violacea\ hydrate kalico magis violacea;, apice 

 rotundata^ et nigori-ima^, 120-1 iO 7. ait*, sursum 8-12 [j. crassœ et inferius 

 paulatimangustat*, parum cohérentes, articulata' articulis8-10 y. longis, 

 septis crassis et lumine 2 y. lato, passim furcata; atque iodo vix tinct*, 

 thecis ca3rulescentibus. Theca^ sporas nondum rite evolutas continentes, 

 cylindric*, 76 y. longu\ 12 y lata-, a|)ice longe vacua; et basi caudat* 

 cauda 10 y. longa ; sporis aulcm maturis replet*, clavata;, 38 y. longœ, 

 20 y. lata', apice parum incrassat* ac basi vix caudat* ; spor* hyalin*, 

 simplices, distich*. forma valde variantes, intus triplici D'^s Guégucn 



