168 Hymenogastracese, Hymenog%fiter. 



Hab. in aggere prope Charlestown CarolinEe inferioris in Amer. 

 l)oreali. — Fungus magnit. pomi vix metiens, exsiccatione fere iin- 

 mutabilis. 



HYMENOGASTER Vittad. Monogr. Tuber. p. 20 (Etyra. ad lu/men mera- 

 brana et cjasler iiterus). Hymenangiuin Corda Icon. V, p. 28, Rhi- 

 zopogi sp. Berk. Hymenangii sp. Klotzsch, Splanchnomycetis sp. 

 Corda. — Peridium plerumque tenue, leve v. bysso innato obdu- 

 ctum, nudum, aegre vel nequaquam solubile clausum indehiscens 

 interdumque rimosum; gleba carnoso-solidiuscula, lacunis irregula- 

 ribus, minutis, gyrosis, creberrimis exsculpta; septa loculos liraitan- 

 tia saepius crassiuscula necdividua; basidia subcyliadracea vel ob- 

 ovata, singulatira ut pluriraura bispora; sporse ovatae fusiformes v. 

 .citriformes, apice pierumque papillatae v. cuspidatfe, crassre, leves 

 aut ssepius inaequaliter rugulosae, maturae saturatius colorataB, in ba- 

 sidii apice subsessiles aut sterigmatibus brevibus sufFulta^, demum 

 liberse. — Fungi gregarii globosi, nunc prorsus hypogaei nuuc vertice 

 subemergentes, basi absorbenti minuta nec producta, mycelio parco 

 parum conspicuo nec floccoso aut radiciformi haerenti semper in- 

 structi, maturi varie colorati et olidi, exoleti arescentes vel putre- 

 scentes. 



1. Hymenogaster arenarjus Tui. Fungi Hypog. p. 73, t. X, f. 2. — 55 

 Globosus, amorphus, obovatus, albidus, imrautabilis; peridio levi vel 

 inaequali tenuissimo glabro, sicco; cellulis irregularibus, exiguis, 

 parietibus ferrugineis, sporis obrutis; septis albidis subsericeo-niten- 

 tibus tandem aquose obscuris; sporis minutis, citriforraibus, apice 

 minute obtuseque papillatis, rugulosis, prirao levibus pellucidis, dein 

 luteo-brunnneis, subopacis. 



Hab. gregatim sub arena penitus immersus inter Spartia Scoparia 

 pr. Paris Galliae. — H. arenario et //. tenero raaxime proximus 

 at habitatione magis hypogaea, superficie inaequali sordidula carne 

 grisea et absque nitore in primis differre videtur. Fungillus nuci^ 

 avellana? magnitudine vel paullo major, semper mycelio instructus; 

 peridium 300-350 u. crassum ; odor acerrimus, fere alliaceus, pe- 

 culiaris, 



2. Hymenogaster Bulliardi Vittad. Monogr. Tuber. p. 23, t. III, f. 5, K: 

 Tul. Fungi Hypog. p. 71, t. X, f. 6, Tuber moschatus BuU. Charap. 



t. 479. — Peridio subgloboso vel elongato, reniformi, extus primo 

 albido, (lein fuscescente-nigro, sericeo, levi, glabro; cellulis minutis- 

 simis, diflbrmibus, gleba firina, densa denium saturafe ferruginea; 



