32 ANALES DE LA SOCIEDAD CIENTÍFICA ARGENTINA 



81. Hypoxylon MiNUTL'M Nits. — Scacc, Syll. pyr. 1, pag. 387. 



Hab. Ad liguum muciduní decorticatum iii sylvis roridis prope Gua- 

 rapi, Sept. 1883 (sub iiuin. 3969). 



Obs. Specimiiia garaiiitica cuín europeis nec non cum nicaraguen- 

 sibus congriientia, habita inter llypojcylon et Hoselliniam media. 

 Perithecia sparsa v. aggregata, globosa, matrici insculpta pa- 

 pillulato-ostiolata iii juvcntute subiculo gossypino albo tecta 

 ac jiincta; asci cylindracei (p. sp. 75-80x7-9 ¡x), modice pedi- 

 cellati paraphysati octospori; sporidia elliptica non v. vix sub- 

 inaeqiiilateralia, ntrinqiie acutiusciüe rotundata (S-lOxS-G ¡x), 

 recte v. oblique monosticba, fuliginea. 



82. Hypoxylon rubiginosum (Prs.) Fr. — Speg., Fung. gnar. pug. 

 I, u. 198. 



Hab. Ad truncos ramulosque dejectos emortuos in sylvis subvirgi- 

 neis prope (zi¿rt/'rt/;í, Sept. 1883 (sub num. 3993). 



Obs. Forma guaranitica a typo nonnihil recedens; perithecia 

 subcarbonacea promiiiula atra squarruloso-rubiginosa, globosa 

 (200-300 [j. diam.), ostiolo non v. vix perspicuo donata, in crusta 

 plus minusve late irregulariterque expansa constipata ; asci cy- 

 lindracei longiuscule pedicellati (p. sp. 60 X 7-9¡j-^ped. 25- 

 35 x4-5 ¡x),superne obtusissinie rotundati, deorsumsensim atte- 

 nuati, paraphysibus parcis filiforniibus obvallati; sporidia ellip- 

 tica V. navicularia utrinque acutiuscule rotundata (10-12 X 

 5-6 ¡;,),nou v. 1-2-guttulata, subopace fuliginea. 



83. Hypoxylon subeffüsum Speg. — Fung. guar. pug.I.n. 204-. 

 Hab. In ligno indurato atqué decorticato truncorum in sylvis propé 



Guaiavití, Aug. 1883 (sub num. 3951). 

 Obs. Species pulcherrima, [lyp. Micheliano Ces. & DNts peraffinis 

 ac subsimilis, a quo peritheciis nigro-fuscis minute subrugulo- 

 sis, circa ostiolum plus minusve discoideo-impressis, sporidiisque 

 minoribus (8-9 X 4-4,5 ¡j.) pallidioribusque differt. 



84. Hypoxylon sudaeneum (B. & C.) Speg. — Uyp. plumbeum Speg. 



1. c, n. 193. 

 Hab. Ad truncos decorticatos putrescentes in sylvis subvirgineis 



prope Guarapí, Sept. 1883 (sub num. 3992). 

 Obs. Specimina guaranitica a cubensibus sub nomine Sphaeriae 



subaeneae B. & C. (Sacc, Syll. pyr. I, f. 256 sub Bosellinia) 



