170 Hymenomycetfe, Polyporaceae, Gyrodon. 



tactu statim ad azureum vergentibus; stipite brevi, caespitoso, saepe 

 irregulari, solido, subtomentoso, basi subvelutino, pallide rubescenti- 

 luteo, apice -basique pallidiore, intus luteo, tactu statim virescente; 

 sporis 13 «:# 6 '/,. 



Hab. ad terram in Alabama Amer. bor. (Underwood). — Pileus 

 2 7,-4 cm. latus; stipes 2 '/,-4 cm. longus, 7-14 mm. crassus. Ad 

 Boletum rubentem accedit. 



24. Boletus flstulasus Peck, Bull. Torr. Bot. Cl. 1897, p. 144. — 492 

 Pileo convexo, viscido, glabro, luteo, margine initio incurvo . v. 

 involuto, came lutea; tubulis planis v. subventricosis, mediocribus, 

 rotundis, adnatis vel interdum circa stipitem depressis, luteis, 



dissepimentis tenuibus; stipite gracili, subaequali, viscido, glabro, 

 cavo, luteo, basi tomento mycelioideo albo tecto ; sporis ellipticis, 

 13 V 6 '/,. 



Hoi). in silvis in Alabama Amer. bor. (Underwood). — Pileus 

 circiter 2'/, cm. latus; stipes 6-10 '/^ cm. longus, 7 mm. crassus. 



25. Boletus Cookei Sacc. et Syd. Sic dicendus est B. lacunosus Cke. 

 et Mass.-Syll. IX, p. 158, quum extet praecedens B. lacunosus Ottla. 



BOLETINUS Kalcbbr. — Syll. VI, p. 51, IX p. 159. 



1. Boietious borealls. Peck, Bull. Torr. Bot. Club. 1895, p. 2(X). — 493 

 Pileo carnoso, convexo obtuso v. subumbonato, brunneo-luteo, lineis 

 rubro-brunneis obscure et reticulate striato; poris magnis, angulosis, 

 inaequalibus, subdecurrentibus, brunneo-luteis ; stipite brevi, aequali 



v. sursum vix angustato, brunneo-luteo, basi tomento albido my- 

 celioideo velato ; sporis oblongis, 10 '/^-l^ v 4-6 '/^. 



Hab. ad terram arenosam, Labrador Amer. bor. (Waghohne). — 

 Pileus 2 '/,-5 '/^ cm. latus ; stipes circiter 2 '/^ cm. longus. 



2. Boletinus appendlculatus Peck, Bull. Torr. Bot. Cl. XXIII, 1896, 494 

 p. 418. — Pileo carnoso, convexo, glabro, ochraceo-luteo, margine 

 velo incurvo membranaceo appendiculato ; carne pallide lutea, im- 

 mutabili; tubulis minutis luteis, ore anguloso, insequalibus, tactu 

 obscurioribus, ad brunneum vergentibus; stipite solido, basi leviter 

 incrassato, luteo; sporis pallide luteis, oblongis, 10y^-13«4. 



Hab. ad terram sub P i n i s, Washington Amer. bor. — Pileus 

 10-21 cm. latus; stipes 6-8 cm. longus, 1-1'/^ cm. crassus. 



6YR0D0N Opat. — Syll. VI p. 51; IX, p. 160; XI, p. 81. 

 1. Gyrodon capensls Sacc. Bull Soc. Myc. de Fr. 1896. p. 68. — 4^ 

 Pileo convexo-expanso, valde subtili, 3-4 cm. lato. 1-2 mm. crasso, 



