

■ 





* 











Pyrenocarpeae Cubeuses. 





409 



lata, leviter depresso-hemisphaerica, basi innata, caeterum nuda et nigra, 

 vertice integra v. vix perspicue umbilicata; perithecium integrum, subtus 



tarnen tenue, basi in sectione axili utrinque vix producto-angulosum ; para- 

 physes confertae, connexae; asei 2-seriatim 8-spori; sporae 20— 



*• 



-32 u 



longae, 8— 13 a latae, 4-loculares. — A proxima P. diluta differt apo- 

 theciis et sporis majoribus. — Verr. Cub.71 pr. pr. (altera ad P. d ilutam 

 pertinere videtur, sed sporae in rneo specim. desunt) . 



6. P. (s. Hemitheciuni] elliptica Müll. Arg.; thallus tlavescenti-albidus 

 tenuis, laevigatus, nitidulus (spermogoniis copiosis thallum fissurinaceo- 

 perforantibus exasperatus); apothecia copiosa, dense sparsa, 5 — 7 / 10 mm. 

 lata, ambitu elliptica, ex immerso demuni triente emergentia et subnuda, 

 nigra, demuni vertice late et profunde umbilicata (et ibidem thalli vestigiis 

 grisea); perithecium dimidiatum, basi non patens, subtus deficiens; sporae 

 in ascis 2-seriales, 15 — 17 \i longae, 5 

 4-loculares. — A proxima brasiliensi P. subnudata differt apotheciis 

 majoribus, ellipticis et thallo nitido. — In Miscellan. parce lecta, in collec- 

 tionibus haud distributa. 



5Y 2 jx latae, elongato-obovoideae, 



. 





Obs. Ad eandem sectionem verisimiliter referenda esset Yerr. Cub. 3, 

 sed specimina mea incomplete evoluta sunt, sporae desunt et apothecia 

 valde juvenilia. 



7. P, (s. Polymeria) ralospora Müll. Arg.; thallus olivaceus, late expan- 

 sus, crassiusculus, subaequalis aut leviter rugosus, superficie laevis, niti- 

 dulus, margine zona lata fulvo-fuscescente et fibroso-radiante cinctus; apo- 

 thecia profunde immersa, globosa, */ 10 mm. lata, apice in Collum gracilem 

 lere totidem longuni superficiem thalli attingentem abeuntia, extus nonnisi 



ostiolo perexiguo cinnabarino perspicua, ostiolum annulo thallino pallidiore 

 decolorato-fulvo ,2 — n lu(> mm. lato cinctum ; perithecium completum, un- 

 dique nigrum et undique satis tenue; paraphyses eonnexae; sporae in 

 ascis 8-nae, fusiformes, magnae, 

 utrinque angustatae, circ. 14 — 18-loculares, loculi fere hexagonales, ulte- 

 riores pariete non separati. — Habitus ut in P. myriommate, sed ostiola 

 multo minora et sporae diversissimae. — Verr. Cub. 234. 



MO — 150 [i longae et 17 — 22 jx latae, 









25. Fyrenula. 

 Pyrenula Fee Ess. Suppl. p.76; Trev. Consp. Yerr. p. 12; Stitzenb. 



Flechtensyst. p. 148. 



§ 1. Perithecium pyramidalis hemisphaericum, dimidiatum v. basi 

 planiuscula completum et tenuius, Iateraliter patens aut angulosum ; semper 



sessile v. saltem alte emergens. 



a. Sporae 10 — 25 <x longae. 



. 



_ — 









I. P, umbilicatula Müll. Arg.; thallus pallide fuscescens, late expansus, 

 (enuissimus, laevigatus, linea fusca limitatus; apothecia dense sparsa, 

 ambitu late elliptica, deplanato-hemisphaerica, diametro majore 9 — 12 / 10 



mm. 



