278 ANALES DE LA SOCIEDAD CIENTÍFICA ARGENTINA 



211. Xylaria grammica Mntgn.=5'acc. Syll. Fung. i, n. 1189. 

 Hab. Ad truncos vetustos putrescentes prope Guarapi, per ann, 



1881-82 (sub num. 2774-3418). 

 Obs. Stipites primo indumento pannoso fusco v. castaneo-olivaceo, 

 velutino vestiti, dein nudi glabri, basi saepe incrassato- dila- 

 tati; clavae in juventute albo-farctae, per aetatem fuscae, sub- 

 cavae; peritbecia globosa v. depressa, majuscula (600-800 

 diam.), ostiolo minuto vix perspicuo; asci cylindracei, antice 

 truncati, postice longe attenuato-pedicellati (p. sp. 60-90x5-6 

 =ped. 30-90x1-3), octospori, parapbysibus flexuosis, graci- 

 libus, dense pseudoseptatis obvallati; sporae recte v. oblique 

 monosticliae, inaequilaterales v. naviculares, utrinque acutiu- 

 scule angulatae (10-11x3,55), in sicco saepe e latera compres- 

 sae (2-2.5), opace fuligineae. 



212. Xylaria bíceps Speg.zrFung. Arg. pug. IV, n. 137. 



Var. MICROSPERMA Speg. 

 Hab. Ad truncos dejectos putrescentes in sylvis prope (Guarapi, 



Jul. 1881 (sub num. 2772). 

 Obs. A typo vix diífert sporidiis conspicue minoribus (8-9x3-3,5), 



opace fuligineis. 



213. Xylaria digitata (Linn.) Grev.r=5'acc. Syll. Fung. 



Var. torulosa Jungh. ? 



Hab. In truncis corticatis dejectis putrescentibus prope Guarapi, 

 per ann. 1883 (sub num. 3774-3904). 



Obs. Stromata gregaria v. sparsa, extus primo albo-leprosa, dein 

 fusco-atra, opaca, glabra, erecta parce ramosa intos albo-farcta, 

 rhachide fulvescente ; rami plus minusve elongati (5-10 mllm. 

 long.xO.5-1 mllm. crass.), compressiusculi, ruguloso-subtorti, 

 glabri, ápice simplices v. bifidi, clavuligeri; clavulae cyjindra- 

 ceae, e peritheciis laxe stipatis subsuperficialibus irregulariter, 

 granuloso-torulosae (7-14 mllm. long xl-2 mllm. crass.), rec- 

 tas V. curvulae, ápice teretes v. snbcompressae, saepe binatae e 

 basi V. e medio liberae ; peritbecia majuscula (600 diam.), glo- 

 bosa, valde prominula, non v. vix papillulato-ostiolata; asci 

 cylindracei, ápice obtuse rotundati, basi plus minusve atte- 

 nuato-pedicellati (p. sp. 50-70x3,5-5=ped. 40-70x1-2), para- 

 physibus exillimis parce obvallati, octospori; sporae recte v. 

 suboblique monostichae, elliptico-naviculares, utrinque acutato- 



