38 MALME, FLECHTEN DER ERSTEN REQNELL'SCHEN EXPEDITION. II. 



disco atro v. fuligineo-atro, opaco, persistenter jilano; margine 

 sat crasso, integerrimo, haud multum prominente, thallo con- 

 colore, rarius demnm obscurascente, persistente. Hypothecium 

 pallidum; thecium snperne fuligineum, KOH immutatum, 

 Sporae in ascis inäatis v. inflato-clavatis 8:n8e, dyblastse, late 

 ovoideo-ellipsoidese, utroque apice obtusissimse, medio haud 

 raro nonnihil constrictte, (18 — )20 — 23( — 25) jli longse, 10 — 12 

 f^i cras.Sce, ejDisporio valde et subeequaliter incrassato. 



Crusta KOH immutata; hj^phse medullares J non reagen- 

 tes; gonidia snbglobosa, vulgo 8 — 12 i^i crassa (stratum cor- 

 ticale thalli admodum evolutum). Pars marginalis excipuli 

 crassa, gonidia numerosa — numerosissima fovens; strato corti- 

 cali inferne mediocri, snperne vulgo nonnihil attenuato. .1 non 

 reagente; margine proprio haud multum evoluto. Tlieciuin 

 circiter 75 j.1 altum, J persistenter coerulescens; paraphyses 

 superne arctissime, ceterum minus arcte cohserentes, sat gra- 

 ciles, circiter 1,25 a crassse simplices v. superne nonnihil ra- 

 mosee, apicibus clavatee, clava ssepe septata et ad septum ali- 

 quantulum constricta, vulgo circiter 4 ^< crassa, superne 

 fuscescente. Sporae utroque apice obtusissimse v. rotundatse, 

 mox fuscscentes, septo primario sat distincto, loculis subglo- 

 bosis approximatisque v. sul)lenticularibus, nonnihil distantibus 

 et tubulo crasso conjunctis. 



Habitat ad lapides apricos, ventosos. 



Specimina repor tavimus e Rio Grande do Sul: Porto Alegre, 

 Xarqueada (18 Ve 03. N:o 1342.). 



Forsan sit var. macrospora Rinodince Regnellii loco ai^rico ventoso cre- 

 scens. TJnico tantum loco observavimus. 



R. griseosqiiamosa Wainio 1890 (?). 



Wainio, Étud. Brés. I, p. 158. 



Thallns crassus, e squamulis confertissimis, crenatis, supra 

 verruculosis, crustam rimoso-areolatam formantibus constructus, 

 fuscescenti-cinereus, hypothallo indistincto. Apotliccia sparsa, 

 adpressa v. rarius adnata, sat magna, 0,75 — 1,25 mm. lata; 

 disco atro v. fusco-atro, opaco, diu piano, demum convexo; 

 margine sat tenui, thallo concolore, subintegerrimo v. demum 



