— 46 — 



membranácea, contextu parenchymalico celluloso, fuli- 

 gineo-atro ; asci pauci iii quoque perithecio, saccati v. 

 ovati,antice obtuse rotundati crasseque tunicati, postice 

 pedicello brevissinio noduloso donati (80-95 X 30-40 ¡j.), 

 octospori aparaphysati ; sporae inordinate distichae, fu- 

 soideo-ellipticae (38-42 x 12-13 ¡x), utrinque obtusiu- 

 sculae, subcurviüae 7-septatae ac coustrictae, loculis 

 dense guttulatis, quarto supero caeteris nonniliil cras- 

 siore, primo hyalinae ac túnica mucosa crassiuscula con- 

 colore vestitae, dein nudae dilute fumoso-chlorinae. 



Hab. Ad folia \iva Azorellae trifurcatae in aridis marit- 

 timis, Gregory bay, Apr. 1882. 



Obs. Species pulcherrima notis nonnullis ad Pleosporam 

 \ergens, dubia etiam inter Leptosphaeriam etSphae- 

 Tulinara nutat !. 



133. ACAWTHOSTIGMA ? IMPERSPICUUM SpCg. (u. Sp.). 



Diag. Perithecia in superficie denúdala sparsa v. laxissime 

 gregaria, minutissima (150-180 ¡x diam.), e lenticulari- 

 conoidea, saepe e latere compressiuscula, basi matrici 

 insculpta, subcarbonacea, atra, minute laxeque liirsuta, 

 setulis pusillis (18-30 X 2-3 [;.), atris, opacis, contextu 

 indistincto, ostiolo minutissimo pertusa : asci obclavati 

 V. subovato-elliptici, antice rotundato-obtusati, postice 

 abrupte in stipite brevi nodulosoque contradi (25-30 X 

 10-12 [)), aparaphysati, octospori; sporae recte v. obli- 

 que di-tri-stichae, elliptico-fusoideae, utrinque acutiu- 

 sculae (9-11 X 3-3,5 [x), triseptatae, ad septum médium 

 non V. yíx coustrictae, loculis duobus centralibus fu- 

 mosis. 



Hab. Ad ramos emortuos decorticatos Fagi antarcticae 

 prope Cabo Negro, Jun. 1886. 



Obs. An melius generi Chaetosphaeriae adscribenda?. 



134. ZiGKOELLA PATAGOJNICA SpCg. (u. sp.). 



