210 ANALES DE LA SOCIEDAD CIENTÍFICA ARGENTINA 



semi-immersa, globosa, mammiformia, párvula (1 80-220), albo- 

 pallescentia, ostiolo papillulato, atro-purpureo, latiuscule fulvo- 

 umbilicato pertnsa, carnosulo-membranacea, contextu indistin- 

 cte parenchymatico, fulvello; asci cylindracei, sursum obtuse 

 rotundati, deorsum breve attenuato-stipitati (75-100x6-10), pa- 

 raphysibus filiformibus, paréis, guttulatis obvallati, octospori; 

 sporae recte v. oblique monosticbae, ellipticae, aequi-v. inaequi- 

 laterales, medio 1-septatae, nonconstrictae, utrinque l-gnttula- 

 tae, loculis aequalibus, non v. 2-guttulatis (10-13x5), hyalinae. 



Hab. In ramis dejectis putrescentibus Cellidis talae in dumetis, 

 Conchas, Maj. 1881. 



Obs. Species pulchella, distinctissima, sed colore atque exiguitate 

 difficillime conspicienda ! 



198. Nectria vulgaris Speg. (n. sp.) 



Piag. Perithecia erumpenti-superficialia, quandoque subsolitaria, 

 quandoque multi (10-30)-coespitosa, primitus strato conidiifero 

 (Verticillium tubercolarioide Speg.J tecta, dein glabrata, libera, 

 sicca contractulo-diíformia, uda subconico-lenticularia (250-300 

 diam), pulcbre subsuccineo-fulvella v. pallide fulvo-aurantiaca, 

 glaberrima, ostiolo non v. vix visibili, crassiuscule membrana- 

 cea, contextu minute ac indistincte parenchymatico, fulvo-ru- 

 bescente ; asci cylindraceo-clavati, sursum truncato-rotundati, 

 deorsum breve attenuato-stipitati (40-45 rarius 60-70 X 5-7), 

 octospori, aparaphysati; sporae distichae v. oblique monosticbae, 

 elliptico-cylindraceae, medio 1-septatae, non v. vix constrictae, 

 utrinque obtusae, v. quandoque truncato-rotundatae (10-12 X 

 3-4), loculis aequalibus, 2-guttulatis, hyalinis. 



Hab. In ramulis caulibnsque dejectis putrescentibus (f. subsparsa) 

 Cüri aurantn, Jussieae longifoliae, Salicis humboldtianae, {f. coe- 

 spitosa) Erythrinae cristae-galli, ac Pircumae dioicae in uligi- 

 nosis nemorosis, Recoleta et Palermo, Feb.-Maj. 1881. 



i 99. Lisea australis Speg. (n. sp.) 



Diag. Perithecia primo tecta dein epidermide secedente libera, su- 

 perficialia, discreta, sparsa v. hinc hinde densiuscule gregaria, 

 sicca collabescenti cupulata, uda emisphaerico-globosa, párvula 

 (200 diam.), atra, glaberrima, contextu indistincte parenchyma- 

 tico, intense violaceo-atro; asci cylindracei v. cylindraceo-subfu- 

 soidei, sursum truncati, atque crassiuscule tunicati, deorsum 



