Pyrenoru^ceUe, Microthyriar^ie, Hidymospcrse, Scynrsia. 638 O a 



POLYSTOMELLA Speg - Syll IX p. 1063. ^^^ni)' — 



1. Polystomella Miconiae Syd. Bull. JFerb. Boiss. 1901, pag. 87. — 2261 ^ 

 Stionmtibuj> hy{.>o|)hyUis, apijlanalis, meiubrauacoo-foriacellis, te- 

 nuiusculis, rigi<1u)i.-?, opacis, atris, 2-10 mm. diani., .sujKjriie pluri- 

 l>ciforato -ostiolatis, ront^xtu indi.etincto; loculis immert^sissimis, 

 210-260 ^. diam., osjtiolo rotiiTHlo douatis; asci?? cylinrira<.eo-claru- 

 latis, suporne rotutidiitis, mlVine brevitor .stipitatis, 'Ui-W » 11-14. 

 o<.t.ospoi'is ; sporidiLs obliquo monostiehis vel subclisi ichi:? fusolHeis, 

 i^pice rotundnti&, basi attenr.utis, 1-septatis, non vel vix cODstri- 

 ctuhs. 13« VlCy, « 3-4. 



Hah. in foliis vivis M i c o n i aB r i g i d i >i f c u 1 se, Saii Franeisco 

 liras?iiiae fULE). 



SEYNESIA Sacc, — Syil. II p. 668, IX p. 10C4, XI p. 881, XIV 

 p. 089. 



1. Seynesia platensis Speg. Fg. Arg;. novi v. crit., pag 298 (1899). 2262 



— Maculis nullis; peritheciia amphigenis, supei^ficialibus, sparsis, 

 atris, opacis, mediocribus, 300-450 /x. diam., diraidiato-scutatjs, 

 astomis, coriacellis, e^^ntextu centrali parenchymatico fere opaco, 

 anibitu prostfitchymatico &ubpellucido, margine grosse iaxeque re- 

 pando-dentioulatis, glabriH, subiculo plaue destitutis; ascis globo- 

 sis v. sul»ovatis, 20 ^. diam., aparaphysatis, octosporis; sporidiis 

 aubcJavuiatis, ntrinque obtusis, 12*5, rectis v. leuissime Ltmequi- 

 lateraUbus, l-septatis, uon coustrictis, primo hyalinis, dein pallide 

 fuligineis, loculis imequalibus, sui^ero couspicue breviore, infero 

 subcuneato longiore et graciliore. 



Hab. ad folia viva Duvauic longifoliae, in silvula Las 

 Taias pr. La Plata Argentinje. 



2. Seynesia Schroeteri Rehm, Hedw. 1898, p. 326, fig. 14. — Pe 2268 

 ritheciis epiphyiiis, in centro raycelii basl radianti gregariis, di- 

 raidiato-scutatis, radiatim contextis, poro conspicuo j^ertusis, nigris, 

 250 li.. diam. ; raycelio orbieulari, ambitu tenuiitsime arachnoideo, 

 nigro, tenui, 3-6 mm. diam., ex hyphis creberrimis ramosiH fuscis 

 septatis 5 [l. crassis composito; ascis ovoideis, GO *^ oO, octosporis; 

 sporidiis oblongo-cuneatis, heloideis, obtusis, iuaequaliter 2-cellU' 

 laribus, 30 ^ longis, cellula superiore globosa 9 fx. diara., infe- 

 riore 21 w 7, hyalinis, dein fuscis. 



HaJb. in foliis C h r j^ s o b a 1 a n i s, B/io de Janeiro Brasilire Ule). 



— Forma sporidiorum siugulari, clavum imitante, ab ( mnibus 

 hujus generis sj)ecLebus recedens. 



