fungí argentini 225 



Ravenelula Speg. (n. gen.) 

 Diag. Ascomata applanata, sessilia, glaberrima , atra, minuta, 

 phyllogena (semper?); asci aparaphjsati, 16-spori; sporae elli- 

 pticae, didymae, fuligineae. 



229. Ravenelula gai^esvillensis Speg. (n. sp.) 



Diag. Ascomata applanata, minuta (180-200 diam.), sessilia, atra, 

 maculis albescentibus, indeterminatis, majusculis insidentia, 

 sparsa v. subgregaria, glaberrima, margine obtusato-prominulo, 

 contextu excipuli minutissime ac indistincte celluloso, f nligineo- 

 atro, epithecio e cellulis crustaceo-conglutinatis (sub pressione 

 liberis), irregulariter globosis (5diam.), olivaceo-fuligineis, sub- 

 opacis (au conidiis?) composito ; asci clavati, sursum obtusissime 

 rotundati, ac crassissime tunicati, deorsum brevissime attenuato- 

 pedicellati (50-60x15-18), 16-spori, aparapbysati; sporae inor- 

 dinate conglobatae, ellipticae, saepe inaequilaterales ac subcym- 

 baeformes, utrinque obtusiusculae (10-12x5), medio iTseptatae, 

 non constrictae, hyalinae. Túnica ascorum iodi ope intense coe- 

 rulescit. 



Species et genus inter fungos licbenesque ambiguum, etsi go- 

 nidiis adbuc non visis. 

 Hah. In foliis Sabalidis spec. in Florida, America septentrionali. 



(Ravenel, North- American Fungi, n, 81, socia Meliola fur- 

 cata Lev.) 



230. Stictis quadrifida Lev. Ann. Se. nat. Ser. III, v. Y, p. 255. 



Propolis quadrifida Mtgu. in Gay. Fl. Chil. v. VII, p. 425. 



Háb. Ad folia coriácea, dejecta subputrescentia plantae cujusdam, 

 in nemorosis prope Apiahy, Brasilia meridionali, Maj. et. Jun. 

 1881, leg. Cl. Dr. J. Puiggari(sub n. 1,511.) 



Obs. Ascomata minuta (0,5-1'" diam.), ampbigena, non v. macula 

 vix pallescente, indeterfíiinata, orbiculari insidentia, 3-15 gre- 

 garia, rarius hinc inde sparsa, primo tecta, dein erumpentia, ac 

 epidermide 3-4-gone fissa cincta, margine vix prominulo, irre- 

 gulari, albescente, tenui donata, disco plano, subdepresso, cera- 

 ceo-viridiv. glaucescente; asci cylindracei, sursum acutiuscule 

 rotundati, deorsum brevissime nodoseque stipitati (80-85x8-9), 

 octospori, parapbysibus filiformibus ápice brevissime 2-5-ramu- 

 losis obvallati; sporae filiformes, polystichae, utrinquerotundatae 

 (75-80x1,5-2), dense multi-guttulatae, hyalinae. Iodi ope nulla. 



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