168 HymenorijycetH', Folyijoraceif. Bolefiis. 



14. Boiatus Uaderwoodil Peck, Bull. Torr. Bot. CJ. 1897, p. 145. 432 



— Pileo tenui convexo, demum subpiano, subvelutino, laete brun- 

 neolo-rubro, «tate pallidiore; carne lutea, tactu viridi-ccerulescente; 

 tubulis adnatis v. subdecurrentibus, viridi-Juteis, tactu ad azureum 

 vergentibus, ore minutissimo, rotundo, cinnabarino, demum brun- 

 neo-aurantiaco ; stipite aequali v. sursum parum attenuato, subir- 

 regulari, solido, extus intusque luteo; sporis 107,-13 «5'/,. 



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

 5-8 cm. latus; stipes 8-10'/^ cm. longus, 1-1 Va cm. crassus. 



15. Boletus tabacinus Peck, Bull. Torr. Bot. 01 XXin, 1896, p. 418. 483 



— Pileo carnoso, convexo v. subplano, subglabro, ssepe rimoso- 

 areolato, tabacino; carne in maturitate molli, pilei colore; tubulis 

 concavis v. subplanis, circa stipitem depressis, colore pilei, ore 

 minuto, anguloso; stipite suba&quali, soiido, reticuiato, concolori; 

 sporis oblongis v. subfusiformibus, 13-16« 5 '/^. 



Hah. in terra ad margines viarum, Alabama Amer. bor. (Un- 

 derwood). — Pileus 7-13 cm. iatus; stipes 4-8 cm. longus, 1 '/j- 

 2 '/, cm. crassus. 



16. Boletus parvus Peck, Buli. Torr Bot Cl. 1897, p. 145. — Pileo 484 

 convexo, demum subplano, saepe subumbonato, subtomentoso, rube- 

 scente; carne luteo-alba, tactu ad. carneum vergente; tubulis sub- 

 planis, adnatis; poris magnis. angulosis, initio laete rubris, dein 

 rubescenti-brunneis ; stipite yequali v. deorsum subincrassato, rubro; 

 sporis oblongis, 13 * 4 



Hah. in silvis in Alabaraa Amer. bor. (Underwood). — Pileus 

 2 '/,-5 cm. latus; stipes 2 7,-B cm. longus, 4-7 mm. crassus. 



17. BoletUS frustulosus Peck, BuU. Torr. Bot. CI. 1897, p. 146. — 435 

 Pileo crasso, convexo v. subplano, subglabro, rimose areolato, albo 



V. albido, carne alba; tulDulis aequalibus, circa stipitem depressis, 

 albidis, demum pallide brunneis; stipite lequali, solido, albido, 

 supra reticulato; sporis 15 ' ,-18' , ^ 5-6 '/,. 



Hoh. ad terram pluribus locis in America boreali. — Pileus 

 8-13 cm. latus; stipes 2 '/,-5 cm. longus, l'/^-^'/^ cm. cra.?su.s. 



18. Boletus Isabelllnus Peck, Bull. Torr. Bot. CI. 1897, p. 146. — Pileo 486 

 convexo, firmo, minute lomentoso. albido, ietate obscuricre ac 

 glabriore; carne isabellina; tubulis adnatis, rainutis, interdum sti- 

 pitem versus majoribus, subrotundis, albidis; stipite subaequali, 

 subglabro, cavo, albido; sporis subellipticis, 8-9 v 5-6'-'^ 



Hah. m silvis, Mississippi Amer. bor. (Underwood). — Pileu.-^ 

 5-8 cra. latus; stipes 2 '/^-5 cm. longus, 1-1 7a ^"^ crassus. 



