— 488 — 



222. DiMEROSPORlUM? MICROSTOMUM Speg. (ll. Sp.) 



D/ary. Non parasitans; hypothallus tenuissimus vix perspi- 

 cuus ; perithecia globosa densiuscule gregaria ostiolata 

 glabra; asci cylindracei paraphysati; sporidia obovata 

 pallide olivácea. 



Hab. Ad folia lánguida Sapindaceae cujusdam in dumetis 

 prope Apiahy, Hiem. 1881 (sub n. 1442-1507). 



Obs. Hypothallus epiphyllus tenuissimus primo fibrillosus 

 mox mucedineo-submembranaceus plus minusve late effu- 

 sus (2-5'" It.) olivascens, vix perspicuas epidermide arctiu- 

 scule adnatus ; perithecia in hypothalli centro saepius den- 

 siuscule gregaria globosa v. subovoidea minuta (70-20 /x) 

 atra glabra, laevia utrinque v, superne tantum umbonata, 

 ápice ostiolo latiusculo (25 /^dm.) impresso perforata; 

 asci cylindracei (35-50 X 8-10/^) sursum obtuse rotun- 

 dati crassiusculeque tunicati, deorsum minute pedicellati 

 octospori, non v. parce paraphysati; sporidia obligue v. 

 subrecte disticha, obovata v. subclavulata (9-11 X 3-4 y-), 

 superne obtuse inferné acute rotundata, medio l-s-íptata, 

 parce constrictula, diu hyalina dein pallide olivácea. 



223. DiMEROSPORlUM? LATERiTiuM Speg. (n. sp.) 



Diag. Pheritecia in subiculo atro velutino constipata, glo- 

 bosa rubro-lateritia glabra astoma; asci pyriformes túnica 

 fuscescente instructi paraphysati : sporidia didyma fu- 

 liginea. 



Hab. Ad folia viva Veiloziae in sylvis prope Itabirá do Campo 

 secus Rio das Velhas^ Sept. 1887 (leg. Cl. I. Arechavaleta). 



Obs. Subiculum (an proprium?) hypophyllum maculas atrás 

 velutinas irregulariter orbiculares (3-8'" dm.) efficiens, 

 arctiuscule matrici adnatum pelliculoso-membranaceum, 

 ex hyphis subopacis fuligineis (6 y- crs.) dense intri- 

 cato-ramosis hyphopodiis destitutis efformatum, setulis 

 erectis (150-250 X 6-7/') subopacis rufescenti-atris septu- 

 latis ápice pellucidis integris vestitum; perithecia inter 



