I 



Pyrenomycetas, Xylapiacese, Poronia. 3^ 



gulariter depressis, cylindraceo-globosis, 3-B mm. altis et latis, extus 

 luride brunneo-sericeo-vestitis, parietibus durissimis atris nitenti- 

 bus, ostiolo angusto stratum corticale perforante, intus massa glu- 

 tinosa farctis; ascis non observatis; sporidiis giganteis, atris, con- 

 tinuis, ellipticis, utrinque rotundatis, junioribus 35-60 « 20-25, ve- 

 tustioribus 70-110^40-55 variantibus. [Intermixtse inveniuntur 

 spor;c hyalince continuaB elongat«, rectie vel curvulae, guttulatae, 

 20-24 « 6-7]. 



IJdb. ad corticem crassum in silva, Sao Leopoldo Brasilia (Dr. 

 RiCK S, J.). Recedit ab Ustul. macrosperma (Mont.) Sacc. forma 

 late pulvinato-effusa, peritheciis non oblongis sporidiisque majori- 

 bus non cymbiformibus. A typo generis nonnihil recedens. 

 3. Ustulina maxima (Weber) "Wettst. in Verb. zool.-bot. Gesellsch. ^^'^^ 

 Wien (1885) p. B92. — Ita vocanda, prioritatis causa, Sphceria 

 maxima Weber, Ustulina vulgaris Tul. — Syll. I, p. 351. 



PORONIA Willd. — Syll. I p. 348, IX p. 542, XI p. 285, XVI 

 p. 451, XVII p. 620. 



1. Poronia ? caelata Pat., Bull. Soc. Myc. de Fr. XXII (1906) p. 57. 4473 

 — Stromate erecto, simplici, stipite subcylindraceo, 7 cm. longo, 

 apice 1 mm. cr., basim versus regulariter incrassato, longitudina- 

 liter striato, vix squamuloso, inferne villoso, extus sordide brun- 

 neolo, intus ilavescente, apice in discum placentiformem, 6 mni. 

 diam. lutescentem superficie CEelatum dilatato; contextu subcitrino, 

 molli, ex hyphis 10 \x. latis formato; peritheciis sporidiisque non 

 visis. 



Hah. in ligno putrido, Tahiti PolynesisB. 



2. Poronia macrospora Peck, Bull. Torr. Bot. Cl. XXXIII (1906) 4474 

 p. 220. — Stromate 0,75-1,5 cm. lato, irregulari, late ovoideo v. 

 depresse globoso, stipitato, ostiolis nigris v. nigricantibus leniter 

 prominentibus punctato^ rubro-brunneo v. nigro-brunneo, intus 

 albo; stipite irregulari, flexuoso, angusto, simplici v. apice parce 

 subramoso ibique sn.^pe incrassato, basi crispato-tuberculato et per- 

 forato, brunneo-nigro, intus albo; peritheciis immersis, nigris, o- 

 stiolis pallidioribus ; sporidiis magnis, ellipsoideis, primum hyalinis 



et muco involutis, pallide coloratis, 40-60 * 20-30. 



Hah. in sabulosis in horto, New Haven Connect. Amer. bor. 

 (P. W. Graff). 



