158 Hyraenogastracese, Octaviania. 



ino subglobosuin dein ob terrse pressionem irregulariter conipressum, 

 varie gibbose expansum, magnitudine ludens 5-20 diam., basi raa- 

 nifesta iiulla, fibrillis radicalibus perfecte destitutum, album, levis- 

 sirauni, glaberrimum, peridio tenui a pulpa non v. difficile secedente, 

 gleba autem pallide fulvo-olivascente, tremelloideo-subceracea, tu- 

 bulis numerosis, rainutissimis undique irregulariter percursa; tu- 

 bulis gracilibus 150-250 u. diam., varie elongatis, vacuis, parietibus 

 sporiferis cinnaraomeis; sporis elliptico-elongatis, sursum plus nii- 

 nusve attenuato-rotundatis. deorsum acute attenuato-cuneatis ba- 

 sique truncatis, episporio ubique majuscule undulato-subverrucu- 

 loso, saturate olivaceo-fuligineis, protoplasraate grosse graauloso 

 farctis v. 1-guttulatis 15-20 =; 8-10; stipite longiusculo, gracili hya- 

 lino, monospermo fultis. 



Hab. ad terram plus minusve profunde delitescens sub muscis 

 liepaticisque en la Boca del Riachuelo in Rep.Argentina. — Odor 

 fortis, nauseosus, fungino-terreus, subvirosus. Species primo in- 

 tuitu pro Tubere australi Speg. facile sumenda, odore tamen ac 

 sub sectione ceteris characteribus mox distinguenda. Characteri- 

 bus externis nec non vegetationis perscrutatis, dubiose haeret cl. 

 Spegazzini an hic fungus Tuberi ansiralis Speg. statum stylospo- 

 ricum sistat nec non an tubera ascigera sphaeriaceorum more sta- 

 tus metageneticos possideant. Peridium 5-2U mra. diara. 



9. Hysterangium? Pseudo-Acaciae (Fr.) De Ton. Mijliila Pseudo-Aca- '^ 

 cice Fr. Syst. Myc. III, p. 220. — Peridio valde indurato, crasso, 

 duplici strato concreto constante, sponte numquam dehiscente, con- 

 textu obscure vesiculoso; interiori massa a cortice distincta, he- 

 terogenea, subfarinacea, sed valde compacta, alba, maculis fertili- 

 bus difforraibus lutescentibus variegata. 



Hab. ad radices vivas languescentes Robiniae Pseudoacaciae, circa 

 Neufchatel Helvetiae (Chaillet). — Fungus globosus, raagnitudine 

 Elaphoraycetis, extus verrucoso-furfuraceus, subfulvus pallidiorve. 

 Radicula^ fibrillosae, tenues. 



i 



OCTAVIANIA Vittad. Monogr. Tuber. p. 15 (liltym. a cl. V. Ottaviam " 

 cui dicatuin genus). — Peridium continuum vol aliquando tessel- 

 lato-rimosum, leve, molliusculuni, haud iugre separabile, deorsuin 

 in basiin sterilem incrassatura subtusque plus rainus productum 

 auctura et radiculas spurias debiles vel capillaceas emittens; gle- 

 ba peridio continua, inulticellularis, molliuscula, inutal)ilis, demum 

 gelatinosa; cellula) peripherica3 sphiijrica; , centrales multo majo- 



