_ 212 



macroscopic aspect: in microscopic regards, however, the two species 

 are undoubtedly differing irom cacli otlior, in s])ito of several coincident 

 characters. 



On leaves of Sacdxiniin: Trinidad, Maravaili Valley. 



Meliola brasiliensis Speg. 



Spores on an average 15 — 1(3 /^ in breadtli (against 18— 20/^ in 

 the type); sometimes are occurring perithecia, whose setae are provided 

 with small stellated branches in the apex. 



On Hura crepita)is L. and various leaves of indeterminaled liosl-plants : 

 Las Trincheras, 15. 12. 91 (H. L.). — On withered, dry branches: The 

 wood near Las Trincheras, 17. 12, 91 (H. L.). — On leaves: St. Este- 

 ban, 4.1.92 (H. L.). — On Panicum divaricatnm L. and Mangifera s\).: 

 Trinidad, Maravaili Valley, 30. 9. 91. 



Myxotheca gen. nov. 



Stroma epiphyllum, superficiale, tenue, membranaceum, structura 

 indistincte pseudoparenchymalica, ambitu substrigosum, laeticolor. Asci in 

 stromate singulatim sparsi, subglobosi, longiuscule stipitali, e centro com- 

 muni 7 — 10 ( — plures) orientes, membrana gelatinoso-deliquescente, 

 ideoque quasi intra locellos mucosos inclusi, nullo autem strato parietino 

 a stromate cingente limitati. Sporidia oblonga, curvula, dense tessellato- 

 muriformia, flavida, deliquescentia ascorum et delapsu stromatis liberata. 



Genus quoad affmitatem ambiguum, Myriangiaceis, inprimis Asco- 

 mycetellae, characteribus nonnuUis accedens, prope Plectascineas utique 

 inserendum. 



Myxotheca hypocreoides sp. n. 



Stromatibus in epiphyllo hinc inde sparsis, e mycelio intracellulari 

 ortis, plaguliformibus, rotundatis, ad 1 mm. diam., vix ^/lo mm. altis, ex 

 ascis maturis prominulis luteolis, zonula albida sterili substrigosa cinctis, 

 membranaceis, structura tenuiter et indistincte pseudoparenchymatica. Ascis 

 in stromate singulatim sparsis, monostichis vel subdistichis, juvenilibus 

 plerumque profundius immersis, maturis — stratis cingentibus incremento 

 protrusis — parum supra superficiem stromatis prosilientibus, subglobosis, 

 ovoideo-globosis vel citriformibus, 70 — 80 /^ long., 50 — 10 jx lat. (mem- 

 brana gelatinosa excepta), deorsum in stipitem circ. 5^ crass, (membrana 

 excepta), long, bis — pluries diametrum ascorum superantem, transeuntibus. 

 Stipitibus singulis seu hyphis ascigeris e centro communi 7 — 10 ( — pluribus) 

 egredientibus, evanescentibus. Membrana ascorum nee non stipitum ma- 

 ture gelatinoso-deliquescente, satis indistincte limitata, qua de causa asci 

 singuli intra locellos gelatinosos inclusi et desuper visi circulo hyalino 



