SPEGAZZINI: MYCETES ARGENTINENSES. 347 



54:2. Xylaria hércules Speg. (n. sp.) 



Diag. Xylocoryne, máxima suberosa extus fusco-murina non 

 r. minute reticulato-maculata, clavis cylindraceis v. linguaefor- 

 mibus ¡titas farctis albo-suberosis, stipite ábbreviato r. elongato 

 subvelutino suffultis; ascis cylindraceis longe pedicéllatis; sports 

 mediocribus navicularibus. 



HaT). Frequens acl caudices pútridos cariosos in sylvis circa 

 Formosa, Dec. 1900 nec non in Bobadal, Jujuy, Marfc. 1905. 



Obs. Solitaria v. laxe caespitosa; clavae ubique fértiles saepe 

 irregulart s (5-10 cm lng. = 3 - 5 cm lat. = 1 - 1,5 cm crss. ) 

 in vivo laevea v. obsoletissime ostiolato-punctulatae in sicco 

 plus minusve corrugatae unicolores v. lineolis densis magis 

 fuscis crebre retieulatae, farctae, ubique fértiles antice obtusae 

 v. acntatae, postice abruptiuscul? coarctatae, stipite etiain 

 farcto (2-6 cm alt. = 1-2 cm rlm. ) suffultae ; perithecia dense 

 constipata e globoso subpyriformia non prominula (( 1,75-1 

 mm alt. = 0,6-0,7 nim dm.) coriacella atra ; asci cylindracei 

 (part. sp. 75-100 ;>■ = 7-12 ¡* ) pedicello snbaequilongo suflulti, 

 aparaphysati v. parce paraphysati, octospori; sporae recte v. 

 oblique monosticbae naviculares utrinque subacutiuscule ro- 

 tundatae (16-21 • •_>. = *>-'■> , I opace fuligineae. 



543. Xylaria ianthino-velutina Mtgn. = Sacc, Syll. fng. i, p. 339. 



Hah. Ad legumina putrescentia Piptadeniae macrocarpae in 

 parque Tucunián, Apr. 19< |,; . 



Obs. An huc X. digitata var. torulosa Jungh. ducenda ? Asci 

 cylindracei modice pedicellati (part. sp. 55-65 ;>■ = 5 \>- = ped. 

 30 \¡.) aparaphysati octospori: sporae naviculares utrinque 

 subacutiusculae (10|A = 4 ;>■), fuligineae, túnica mucosa hyalina 

 utrinque crassiuscula vestitae. 



544. Xylaria macropoda Speg. (n. sp.) 



Diag. Xylocoryne, fusco-atra : clavulis subcylindraceis collicu- 

 losis laeoíbus, fusco-farctis, ubique fertilibus, stipite praelongo 

 suffultis; peritheciis immersis globulosis ; ascis cylindraceis longe 

 pedicéllatis subaparapky satis; sports subparvis anguste navicula- 

 ribus fuli¡¡ ineis. 



Hah. Ad palos humifusos subputrescentes in aridia prope 

 Tncumán, Apr. 1906. 



Obs. Caespitosa erecta 20-25 cm alt. sordide atro-fusca 

 e carbonaceo suberosa: clavulae subcylindraceae (5-10 cm 

 lng. = 1 - 1,5 cm dm. aor v. vix compressae atro-fuscae uni- 

 colores, laeves v. obsoletissime scrupulosae v. papillosae, intus 



