Hymonogastrace». Hysterangiura. 155 



eelluhie parvse, e lja.si radiantes; spor?e ovat;e, fnsilbrines vel citriformes, 

 leves aut rugulosa^, maturae saturatius colorataj. 

 Uydnanginm. Peridium molle, leve aut villosum; gleba mollis; celluliie ro- 

 tundatoe, centrales majores; sporae sphaericie vel subellipticre, eclunatie 

 rarissime leves dilute vel saturatius coloratae, subhyalinse. 



B) Peridiura nullura vel obsoletum. 



Gautieria. Hypogjfium; sporae longitudinaliter striatfe. 

 Macoioaniles. Epigicum ; sporos tuberculatic. 



HYSTERANGIUM Vittad. Monogr. Tiiber. p. 13 (Etyra. hjjsfej^a ute- 

 rus et angeion vas). — Peridium clausum, iudehiscens, distinctis- 

 sinuim, facile solubile aut etiam natura secedens, tenue vel cras- 

 siusculum, tenax, stupeum v. membranaceum, m^^celio instructum ; 

 gleba mucoso-cartilaginosa , tenacissima, cellulis initio cavis et 

 tandem subfarctis, minutis, rotundatis seu lineari-angustis inter- 

 dumque sub peridii tegumento apertis ubique confossa et excavata; 

 septa cellulas efformantia maxime s^pius insequalia, haud scissilia, 

 utrinque basidiophora, basidia tenuia plerumque 2-spora; sporae el« 

 lipticse v. lanceolatae, subasterigmatica?, copiosissima^, leves plerum- 

 que dilute colorata? et pellucida?. — Fungi gregatim hypog^i, sphae- 

 rici, reguiares, mvcelii candidi copiosissimi peculiari modo floccosi 

 non autem filamentosi gratia polyrrhizi, obvoluti, velati, aliquando 

 contra mvcelio fuoiformi subsimplici haerentes indeque nudi, monor- 

 rliizi, maturi saepius odori. 



1. Hysterangium clathroldes Vittad. Tuber. 13, t. 4, f. 2, Tul. Fung. sn 

 hvp. p. 80, Splanchnomyces clathroides Corda Icon. VI, p. 41, 

 t. VII, f. 77. — Plerumque regulariter spha?ricum, initio candidum, 

 dein maculis brunneis flaveolisve sparsis scrobiculato-notatura, my- 

 celio candidissimo immutatoque late diff"uso prfeditum, tandem vero 

 denudatum ideoque subarrhizum ; peridio nunc sublevi nunc furfura- 

 ceo-gossypino mycelioque continuo, ceterum membranaceo, tenuissi- 

 mo, facile separabili, tenaci, e contextu stupeo albo tandem brunneo, 

 exsiccato saspius crispato-rugoso ; gleba gelatinosa, tenacissima, 

 elastica, densa mox cinerea vel glauco-virescenti, dein saturatiori 

 et olivaceo-virente, ceUulis inaequalibus, angustissimis, elongato-Ii- 

 nearibus, nonnullis rotundatis excavata ; septis glauco-cinereis, 

 sine linea media obscuriori, nec scissilibus, reticulato-connexis; 

 sporis 2-4, basidiis cylindraceo-angustis suffultis, subsessilibus, el- 

 lipsoideo-oblongis, utrinque subacutis, levibus, 12-14 :i 4-0,5, hya- 

 linis, coacervatis griseo-virentibus. 



