8 STARBÄCK, ASCOMYCETEN DER REGN. EXPEDITION. 



Niptera. 



N. melaxantha Starb. nov. sp. Fig. 6 — 7. 



Apothecia sparsa vel gregaria, superficialia, primo globu- 

 lösa, deinde e cupulato mox patellceforraiter planinscula, late 

 sessilia, margine parum elevato, plerumque integro, interdnm 

 undulatim lobato, nmbrina, disco luteo-griseo, textura mollisi- 

 oidea, marginem versus hypbis discretis, cellulis paullum elonga- 

 tis composita, \ m — 1 mm. lata. Asci cylindracei, siirsum acn- 

 tiuscnle obtusati, breviter pedicellati, 70 — 80 x 7 — 10 ;y.. Spo- 

 ridia octona, disticha, fiisoidea vel anguste ellipsoidea, hya- 

 lina, imiseptata, utrinque obtusiuscula, 15 — 18 x 3,5 — 4,5 f/., 

 Paraphyses parcissimee, rigidai. 2 — 3 {/. latee. J +. — Hab.: 

 Brasil., Rio Grande do Siil, Santo Angelo, pr. Cachoeira. Ad 

 cortieem crassiorem, ^Vi 93. N:o 179. — Margine ab excipulo 

 eodem colore parum distincto, hypbis marginalibus parum inter 

 se discretis, cellulis vix attenuatis, nec non sporidiis pro 

 ratione crassis distincta species. 



Orbilia. 



O. caudata Starb. nov. sp. Fig. 8 — 9. 



Apothecia sparsim gregaria vel interdum conlerta et con- 

 fluentia, primitus spbterioidea. clausa. deinde e cupulato appla- 

 nato-patellaria, ad matricem depressa, tenuiter marginata^ 

 ssepe mycelio candido orbicnlariter ciliatimque eincta, testaceo- 

 aurantiaca, — 1 mm. diam. Asci cylindraceo-clavati, sursum 

 detruncati, pedicellati, 38 — 45 x 3 — 3,5 y.. Sporidia octona^ 

 irregulariter stipata, clavulata vel potius ellipsoidea, deorsum 

 in caudam tiliformem, curvulam, acutiusculam producta, 5 — 

 »i,c X 1,5 — 2 u.] cauda 0,5 — 1 a lata. Paraphyses parcfB, rigi- 

 diusculte, filiformes, superne spheerice vel obconice, abruptim 

 4,5—6 [j. incrassatcie. Jodo asci lenissime ad apicem coerules- 

 cunt. — Hab.: Brasil., Rio Grande do Sul, Santo Angelo pr. 

 Cachoeira ad ramos corticatos, ^^i 93. N:o 164. — Ob formam 

 sporidiorum O. occultw (Rehm) Sacc. proxima species, satis 

 satisque autem difFert ascis angustioribus, sporidiis minoribus, 

 apicibus paraphysum, colore apotheciorum. 



