HETEROBASIDIE^î NONDUM DESCRIPT^. 265 



17. Tulasnella vernicosa. 



Effusa, mucoso-gelatinosa, crassiuscula, sordide hyalina, sicco 

 fuscidula, laccata, — Hyphse 1-2 jx, gelatinosse ; basiclia piriformia, 

 10-12 X 7-8 [x, 4 sterigmatibus oblongis mox fusiformibus, apice 

 subulatis (basidia raro formata, sensim evolutione sterigmatum 

 absorpta) ; sporse oblongo-subellipsoidese, vix depressse, 5-7,5 

 X 3-5 |x. 



Martio-Septembri, ad ligna putrida Populi, Juglandis, etc. 



18. Tulasnella sordida. 



Late effusa, gelatinosa v. ceraceo-mucosa, tenuis, sequalis, opalea 

 sordida v. fuuiosa, ssepius evanescens. — Hyphse 2-7 p.. tenuiter 

 tunicatse, enodulosae ; basidia obovato-oblonga, 8-1 6-30 X 6-12 jx, 

 2-4 sterigmatibus oblongis, 9-10 X 4-5 fx, dein fusiformibus, 10-15 

 X 4^5-5,5 <x ; sporse varias obovatae v. oblongse, basi attenuatse, 

 rarius latere depressse, 5-9-12 X 4-8 tx. 



Per annum, ad ligna putrida Mali, Castaneœ, Quercûs. Alni, 

 Oenistœ, etiam ad ligna fabrefacta et Poriam megaloporam ; 

 haud rara. 



19. Tulasnella obseura. 



Maculseformis, tenuissima, mucoso-gelatinosa, obscure hyalina, 

 fuscescens, subevanida. — Hyphse 3-4 fx, tenuiter tunicatse, enodu- 

 losse ; basidia obovata 8-9-12 X 4,5-6-8 ;x, mox flaccida, 4 sterig- 

 matibus, ex obovatis anguste fusiformibus, 9-15 X 2,5-3 [x; sporse 

 obovato-subglobosse, basi attenuata\ 4,5-6 X 3,5 |x, 1-guttulatse. 



Julio-Decembri, ad ligna putrida Populi, Juglandis , Aveyron. 



20 Tulasnella araneosa. 



Laxe araneosa. ~ Hyphse 3-8 jx, tenuissime tunicatse, enodu- 

 losœ, substrato irrepentes ; basidia obovata v. piriformia 8-15 

 X 6-8 (x, 4 sterigmatibus sphseroideis, mox fusiformibus, 9 X 4-5 u 

 et flaccidis ; sporse obovato-oblongse, oblique basi attenuatse, v. 

 lateraliter depressse, 6-8 X 4-5 a. 



Octobri et Novembri, ad ligna putrida Alni, Fraxini et Cerasi ; 

 Aveyron, Allier. 



21. Giœotulasnella metachroa. 



Late effusa, subinterrupta, ceraceo-mollis, obscure hyalina, plus 

 minus violaceo tincta, demum fuscescens v. evanescens. — Hyphse 

 3-6 jx, tenuiter tunicatse, sat crebre nodulosse ; glœocystidia cylin- 

 drica v. fusiformia obtusa, subflexuosa, tenuiter sed rigidiuscule 

 tunicata, 24-60 x 7-10 [x, succo hyalino homogeneo farcta ; basidia 

 obovata, 12-18 X 8 12 p, 2-4 sterigmatibus subglobosis, oblongis, 



