— lOG — 



Diag. Stromata corticola, primo tecta deiii eriimpeiitia ac 

 peridermii laciniis ciiicta, parvula (1-1,5'" diam.), atra, 

 opaca, laevia, parum pulviuata sparsa v. gregaria ac 

 subseriato-subconllueutia, carbonacea, coutextu indi- 

 stincto; loculi globulosi dense constipati ("200-250 [x), 

 inimersi non promiuuli; asci c^-liudracei v. cylindraceo- 

 fusoidei, apice truncati, j)ostice atteuuato-pedicellati 

 (80-100X8-9 [j.), octospori, |)arapliysibus liliformibus 

 paucis obvallati ; sporidia oblique niono-v. di-sticha 

 subcyliudracea, ulriucjue obtusiusculc rotundata ( 15- 

 25 X 4-5 [;.) leniter iuaequilaleralia v. subcurvula, tri- 

 septata, ad septa uou constricta, liyalina. 



Ilab. Ad ramos dejcctos emortuos Chdiolrichi amclloi- 

 dis prope Port Cook in Staten island, Mart. 1882. 



MICROTHYRIACEAE Sacc. 



280. MlCROTHYRIUM ANTARCTICUM Speg. (u. Sp.) 



Diag. Perithecia atra, hypophylla sparsa supcrlicialia, 

 orbiculari-scutata (100-110 ■;.), membranacea subcoria- 

 cella, contextu dense prosenchymatico-radiante, circa 

 ostioIum(15 [j. diam.) subcarbonacea, margiue fimbria- 

 tula; asci cylindracei v. cylindraceo-obclavati, antice 

 obtusi rotundati crassiuscule tunicati minute 1-foveo- 

 lati, postice rotundato-cuneali iu pedicello brevissirao 

 ac ininuto producti (22-27 X 3,5-4,5 \).), octospori, 

 aparaphysati ; si)oridia recte disticha, obovato-elongata, 

 utrinque obtusiuscule rotundata (6,5-7 X 1,5-2 [j,), 

 recta V. vix subinaequilatcralia, 1-septata leniter con- 

 stricta, loculis minute 2-guttuIatis, supero crassiore 

 brevioreque, hyalina. 



Ilab. Ad folia dejecta Derberidis ilicifoliae et Caliixe- 

 nis marginatae in Staten island, Mart. 1882. 



