fungí guaranitici 253 



Diag. Maculae minutae (1-15 mllm, diam.), epipliyllae, rarius 

 ampliigenaé, indetérminatae, arescenti-fuscae v. cinereo-atrae, 

 dense gregariae, rarius confluentes, substromaticae; stromata 

 minuta epiphylla, rarius hypopliylla, suloepidermica, cum ma- 

 eularum sul)stantia confluentia, globulosa, minuta, parce pro- 

 minula (100-120 diam.), atra, glabra, subnitentia, 1-locularia; 

 loculi minuti, e globoso lenticulares (80-100 diam.), solitarii, 

 núcleo albo farcti, ostiolo minuto non v. vix papillulato-perfo- 

 rato donati; asci fusoidei y. fusoideo-subclavati, sursum truncati 

 crassissimeque tunicati, late perforati, deorsum attenuati, pedi- 

 cello párvulo noduloso instructi (50-52 x 7-9), aparaphysati v. 

 pseudoparaphysati, octospori; sporae fusoideo-aciculares, utrin- 

 que acutato-rotundatae, rectae v.leniter curvulaé (40-45x2-2,5), 

 primo multiguttulatae, dein obscure polyblastes (an plurisepta- 

 tae?), hyalinae. 



Ilab. Ad folia viya i nonaceae cujusdam in sylvisprope Paraguarí, 

 Dec. 1881 (sub num. 3439). 



MIGROTHYRIACEAE Sacc. 



MICROTHYRIEAE Speg. 



Simplices; peritbecia superficialia, nigricantia, scutato-dimi- 

 diata, applanata, subiculo nullo v. plus minusve evoluto insiden- 

 tia, centro poro pertusa v. astoma, serius radiatim dehiscentia. 



293. Myiocopron? crustaceum Speg. (n. sp.) 



Diag. Maculae niillae; perithecia ampbigena, saepius hypophylla, 

 densissime aggregata, subconfluentia, late folia crusta fusco-atra 

 continua obtegentia ac nigrifacientia, discoidea, dimidiato-scu- 

 tata, párvula (150-180 diam.), coriacella, contextu radiante 

 subindistincto, ostiolo parum conspicuo subrotunde v. stellatim 

 dehiscente donata; asci subsaccati, ovati v. obovati, ápice obtu- 

 sati, basi abrupte coarctati minuteque stipitati (40-50x15-20) 

 paraphysibus simplicibus parcissimis immixti, octospori; sporae 

 oblique disticbae, ovoideae v. clavulatae, leniter inaequilatera- 

 les utrinque obtusiusculae, non v. medio subcoarctatulae (an 

 demum 1 -septatae ?) granuloso-farctae, hyalinae (15-20x7-8). 



