Theissen, Fungi riograndenses. 
411 
Lembosia microtheca Theiss. n. sp. 
Maculae epiphyllae vix perspicuae, lenissime fuliginascentes, 
minutae, 2—4 mm diam., indeterminatae. Mycelium vix sub 
lente visibile, ex hyphis sparsis, laxe opposito-ramosis, laete 
fuligineis, 2 1 / 2 p crassis compositum. Hyphopodia rara, alterna, 
ramuliformia, astipitata, recta, cylindrica, 5—8 = 2 p. Perithecia 
densiuscule aggregata, aterrima, linearia, recta vel curvula, dimi- 
diato-convexa, contextu brunneo subconcentrice radiante, rima 
tenuissima dehiscentia, longitudine varia, 180—300 = 70—90 p. 
Asci oblongo-elliptici, 25—30 = 9—11 p, interdum deorsum 
paullo angustati et proinde subclavati, 8-spori, sporidia demum 
brunnea, disticha, oblonga, 9—.10 = 2 1 /!—3 p, loculo infero 
paullo angustiore et longiore. Paraphyses copiosae simplices 
filiformes flexuosae, ascos obvallantes. 
In foliis Goeppertiae hirsutae, Sao Leopoldo, Rio Grande 
do Sul. 
