30 MALME, FLECHTEN DER ERSTEN REGNELL'sCHEN EXPEDITION. II. 



7. R. coloraiis Wainio 1890. 



Wainio Étud. Brés. I, p. 159. 



Thallus crustaceus, effusus, tenuis, subcontinuus, rimoso- 

 areolatus v. disperse areolatus, ssepe nonnihil verrucoloso- 

 grannlatus, albidus v. albido-cinereus, hypothallo obscuriore, 

 sat inconspicuo. Apothecia sat sparsa, adpressa v. adnata, sat 

 parva, 0,3 — O,»; mm. lata; disco atro v. fuligineo-atro, persi- 

 stenter piano, opaco; margine tenui integerrimo, persistente, 

 tballo concolore v. demum obscurascente. Hypothecium palli- 

 dum; thecium superne olivaceo-fulvescens, KOH roseo-viola- 

 scens. Sporse in ascis clavatis 8:na3, dyblastte, oblongae v. 

 ellipsoideae, medio baud raro nonnibil constrictse, (16 — )18 — 

 22( — 24) ,tt longte, (7,5 — )8,5 — 11 /< crassee, episporio {fiqualiter 

 incrassato. 



Criista KOH immutata; stratum corticale snbnullum; go- 

 nidia globosa, G — 10 ^t/ crassa; bypbee medullares J non rea- 

 gentes. Pars marg-iiialls excipuli sat tennis, gonidia numerosa 

 sat pauca fovens; strato corticali mediocri, superne paullnlum 

 attenuato; margine proprio baud mnltum evoluto v. subnullo. 

 Thecium 75 — 90 f.i altum, J. persistenter coerulescens; para- 

 physes sat graciles, circiter 1,ö u erassee, sat arcte cobeerentes, 

 simplices v. superne nonnibil ramosre, apicibus capitato-cla- 

 vatse, clava brevi, usque ad 5 /.i crassa, ssepe septata et ad 

 septum constricta, superne fuscescente. Sporae sfepe curvulse, 

 utroque apice obtusissimte v. rotundatte, sat cito fnscescentes, 

 septo primario distincto, loculis ovoideis v. rarius subglobosis, 

 vulgo distantibns et tubnio conjnnctis, rarius approximatis. 



Habitat ad corticem arborum fruticumve. 

 Specimina reportavimus e Rio Graude do Sul: Porto Alegre 

 (In fruticeto. 18 'y<J 92. N:o 418 — 18 \'u 92. N:o 660.). 



Species distinctissima, afflnis Lecanora colobinoidi Nyl. [Lich. Nov. 

 Gran. I (1863), p. 444.], qnse jam crusta subisidiosa, obscuriore differt; a R. 

 intrusa (Kremp. k. Nyl.) Malme, infra descripta, habitu, reactione KOH in 

 thecio provocata, sporis panllulo majoribus et oitius obscuratis etc. longius 

 recedit. 



