2() MALME, FLECHTEN DER ERSTEN REGNELL'sCHEN EXPEDITION. II. 



j)otheciuin pallidum; thecium superne fuscidulum, KOH ini- 

 mutatum. Sporae in ascis inflato-clavatis 8:nse, tetrablastse 

 (raro dyblastee), late ellipsoidece, medio non constrictse, (20 — ) 

 22 — 2(){ — 29) u longse, (9,5 — )10,5 — lo( — 14) u crassse, episporio 

 valde inerassato. 



Crusta KOH immutata; stratum corticale hand bene evo- 

 liitum, superne subamorphum, inferne minute cellulosnm; go- 

 nidia subglobosa, 7 — 10 /.i crassa; hypliee mednllares J non 

 reagentes. Pars luar^innlis excipiili sat tenuis, gonidia sat nu- 

 merosa — pauca fovens; strato corticali mediocri, sujierne + at- 

 tenuato, J non reagente; margine proprio saltem demum bene 

 evoluto. Thecium circiter 1,25 i.i altnm, .1 persistenter coeru- 

 lescens; paraphyses graciles, circiter 1 // crassse, superne ra- 

 mosse et arcte cohfierentes, apicibus nonnihil clavatee, clava 

 l)revi, usque ad 3 jn crassa, superne fuscescente. Sporae utro- 

 que apice obtusissimee v. rotundatce, diu subhyalinaä septo 

 ])rimario sat inconsqicuo, loculis parvis, + lenticularibus. 



Habitat ad corticem arborum. 



Specimina reportavimus e Rio Graude do Sul: Santo An- 

 gelo pr. Cacboeira (18 ^i 93. N:o 878 B.), Silveira Martins 

 pr. Santa Maria (18 -^2 93. N:o 1094.), Cruz Älta (18 ^^/i 93. 

 N:o 1248 B.). 



A R. homohola (supra descripta) crustse indole, thecio KOH non rea- 

 gente et sporis minoribus recedit nostra species: neque cum R. homoholoide 

 Wainio, cujus spors multo minores sunt, confundenda est. 



A R. paupercula (Nyl.) Mull. Arg. [Consp. lich. Nov. Zel. (1894), p. 

 52; Lecanora pyreniospora Nyl. var 2)aupercula Nyl. Lich. Scand. (1861), 

 p. 152; Lecanora paupercula Nyl. Lich. Nov. Zel. (1888), p. 62.] apotheciis 

 majoribus, crassius marginatis, sporis nonnihil majoribus, crusta Isetius colo- 

 rata differt. 



R. sp. [Ii. homohohe (Nyl.) Wainio affinis.] 



Thalliis crustaceus, effasus, tenuis, disperse areolatus v. 

 verrucosus, areolis parvis, crenatis v. laceratis, ciuereo-brunne- 

 olus v. subferrugineus v. ferrugineo-lateritius, hypothallo sub- 

 concolore, sat inconspicuo. Apothecia sparsa, adnata v. ad- 

 pressa, par va, 0,2 — 0,5 mm. lata; disco fulvocastaneo v. fusce- 

 scente, primum piano, dein saltem vulgo convexo; margine 

 tenni, thallo concolore, crenato-granulato, demum fere exclnso. 

 Hypothecium rnfescens; thecium superne ferrugineo-fulves.cens, 

 KOH immntatnm. Spor» in ascis clavatis S:iree, tetrablastte 



