175 



MICROTHYRIACEAE Sacc. 



334. MicROTHYRiuM? ciRciNANS Spcg. Sacc, 1. c f. 665. 

 Hab. Ad folia viva coriacea plantae ignotae in nemorosis 

 prope -4p?'a/ii/, Maj. 1881 (siibn. 1502). 



335. MlCROTHYRIUM MELASTOMACEARUM SpCg. (n. Sp.) 



Diag. Perithecia hypophylla dense constipata plagulas or- 

 biculares atras granulosas efficientia, scutato-dimidiata, 

 minuta ostiolata membranacea ; asci cvlindraceo-clavu- 

 lati aparaphysati ; sporidia clavulata didyma hyalina. 



Hab. Ad folia \i\Si Melastomaceae cujusdam in dumetis prope 

 Apiahy, Aut. 1881 (sine n.). 



Obs. Maculae nuUae v. amphigenae indeterminatae palle- 

 scentes vix perspicuae; perithecia hypophylla scutata 

 (150-250 y-dm.) atra membranacea, contextu minute sub- 

 prosenchymatico-celluloso fumoso atro donata, ostiolo 

 latiusculo (15-25,^dm.) pertusa, glabra laevia densissime 

 constipata, subconfluentia, plagulas subcrustaceas sub- 

 granulosas atras opacas suborbiculares (3-10'" dm.) am- 

 bitu sinuosulo-repandas efficientia ; asci cylindracei v. 

 cyHndraceo-obclavati (60-80 X \0 m-) antice obtusissime 

 V. subtruncate rotundati, crasse tunicati 1-foveolatique, 

 deorsum e cuneato rotundati crasseque brevissimeque 

 stipitati octospori aparaphysati ; sporidia recte di-v. tri - 

 sticha clavulata (45-1 6 X ^-^ /^) medio 1-septato-con- 

 stricta, loculo supero obtuso, infero acuto, hyalina. Su- 

 biculum V. hypothallum plane deficiens. 



336. MlCROTHYRIUM VIRESCENS SpCg. (u . Sp . ) 



Diag. Maculae arescenti-pallescentes orbiculares mediocres ; 

 perithecia hypophylJalaxe gregaria minuta ostiolata mem- 



