Hytncnogastracea;, Rhizopogop. 101 



gus 1-1,5 ciu. latiis, inodorut:, acro contrahitur. uAii ab Hydnan- 

 <jio carneo distiucta?)) 



Species milii nomine tantum uota. 



8. Octaviania lutea Flesso in Pringsh. Jahrbiich. XVI, (1885), p. 225. ^"^^ 

 llab in Germania (?). 



RHiZOPOGON Fr. Symb. Gasterom. p. 5 em. Tul. F. Hypog. p. 85 

 (Etym. a rhiza radix et pogon barba) Hysleromyces Vittad. Splan- 

 chnornyces Corda p. m. p. — Peridium globosum, tuberiforme, 

 modo crassum subcoriaceum stupeum, oDgre vel nequaquam solu- 

 bile, modo tenue submembranaceo et aliquando snbevanescens; my- 

 celium in funiculos filiformes teretes vel compressos tenaces con- 

 cretum, fungum obducens; gleba mire cellulosa, compactiuscula aut 

 densissima, initio caudida, dein varie colorata, diffluens graveolens 

 et inquiuans; cellulse minuta?, irregulares, subsequales, primo pe- 

 nitu? cava?, demum partim vel omnino oppletaB; septa angustissi- 

 ma, pellucida, pleraque homogenea nec scissilia, exteriora medio 

 subopaca, solubilia; sporae ellipticaB, oblongse, 2-S in quoque basi- 

 dio, subsessiles, l-2-guttulat8e, hyalinte. 



1. Rhizopogon luteolus Fr, Symb. Gast. p. 5, Tul. Fungi Hyp. p. 87, 534 

 tab. I, r. 5 et t. XI, f. 5, Splanchnomyces luieolus Corda Icon. 

 VI, tab. Vn, fig. 69, Hysterangium Duriieaniim Tul. in Chant. 

 Cat. p. 75, Melanogasier Cauoinianus Mont. in litt., Tuber vi- 

 rens .\\h. et Schw. Consp. Lus. p. 77, t. VIII, f. 3, Rhizopogon 

 virens Fr. Syst. Myc. II, p, 294, Tuber obiexium Spr. Plant. mi- 

 nus cogn. II, p. 97, Splanchnomyces Cauvinianus Corda Icou. VI, 



p. 3'), t. VIII, f. 72 Splanchnomyces Rabenhorsiii Corda Icon. 

 VI, p. 39, t. VIII, f. 73. — Peridio difformi, vulgo sphaeroideo, 

 reniformi vel ovoideo, fibrillis radicantibus, laxis, primitus albo, 

 dein helvolo vel sordide luteo, intus lutescenti, livido vel griseo- 

 viridulo; gieba primum candida et immutabili, perfecte lacunosa; 

 cellulis rotundato-anfractuosis; septis angustis , scissilibus; basi- 

 diis lineari-obiongis, 1-6-sporis; sporis ellipsoideis, diluto luteohs 

 vel subhyalinis, levibus, rectis, 7-16-4-6. 



Hab. in arenosis silvisque in Germania, Gallia, Feunia, Rossia, 

 Uelgio, Suecia, in America boreali, in Nova Zelandia. — Usque ad 

 2 cm. latus, sparsus vel gregarius ; odor primum debilis dein gra- 

 vis quasi stercoreus ; sapor fere nullus. 



2. Riiizopogon rubescens Tul. Fungi Hypog. p. 89, t. II, f. 1 ex L XI, 535 



u 



