— 36 — 



piilverulenti ; conidia catenulata, globosa v. obscure 

 subcuboidea (18-20 \j. diam.), teiiiii timicata, laevia, 

 hyaliua, granuloso-farcta. Oosporae iii parenchymate 

 füliorum immersae, globosae (50-65 [x diam.), subopace 

 fuligineae, laevissimae, protoplasmate hyalino granuloso 

 farctae, oogonio hyalino monosporo inclusae. 



Hcib. Ad folia nec non caules vivos Spergulariae grandis 

 in uliginosis prope Bahía Blanca, Aug. 1886. 



Ohs. Conidia et oogonia eodem tempore ac in eodem 

 folio vigentes. Fnngillus oogonicus folio luci objecto, 

 ut macula opaca tantum conspici potest. 



PYRENOMYCETEAE Fr. 



111. Phyllactiima antárctica Speg. (n. sp.). 



Diag. Perithecia hypophylla, sparsa, mycelio, oidia- 

 ceo albo parcissiiiio mox evanido insidentia, globosa, 

 (130-140 [j. diam.), atra, verruculoso-asperula, opaca, 

 glabra, sicca non v. vix cupulata, superne 6-8 appen- 

 dicibus subcoronata; appendices simplices, cylindraceae 

 (150-200 X 9 [x), rectae, divaricatae, ápice obtuse acu- 

 tatae, basi vesciculoso-inflatae (40 X 30 ¡x), hyalinae, 

 continuae,laevissimae. Asci 8 v. 10 in quoque perithecio 

 cylindraceo-elliptici v. subovati, ápice late subtruncati, 

 basi crasse brevissimeque noduloso-stipitati (80-95 X 

 22-24 ;;,), aparaphysati, bispori (an quandoque tetra- 

 spori?) ; sporae ellipticae v. ovoideae (32-33 X 15-20 ¡j.), 

 utrinque obtuse rotundatae, continuae, laeves non y. 

 grosse 1-guttulatae, hyalinae. 

 líah. Ad folia viva Rihis magellanici in coUinis Lion 

 rang prope Gregory hay, 20 April. 1882. 



112. Phyllactiista suffulta (Reb.) Sacc. 

 Hab. Ad folia viva Anarthrophylli rigidi prope Mi- 

 sioneros secüs Rio Santa Cruz, Jan. 1882. 



