ADDITIONS TO CEYLON FUNGI (ll.). 283 



Polyporaceae. 



Boletus xylophilus n. sp. 



Pileus convex, in the larger undulating and slightly 

 depressed in the centre, margin incurved, up to 12 cm. dia- 

 meter, dark russet-brovni, or yellow-brown, minutely scurfy, 

 sometimes areolated ; flesh up to 2' 5 cm. thick, pale yellow, 

 rapidly changing to blue when cut, colour soon fading, some- 

 times fu^st becoming purple-red. Pore surface yellow, or 

 greenish-yellow, blue when bruised, with a deep sinus round 

 the stalk, and a few pores decurrent on the stalk ; pores up 

 to 1 cm. deep, mouth oval, 0*4 mm. diameter. Stalk up to 

 7" 5 cm. high, 2 cm. diameter, almost equal, or attenuated 

 upwards, red-brown, paler towards the apex, with longi- 

 tudinal anastomosing streaks, minutely pruinose. Spores 

 broadly oval, sometimes flatter on one side, smooth, brownish- 

 yeUow, 4-5 X 3 jji,. Mycelium sulphur-yellow, sometimes 

 ascending the base of the stem. 



Round decaying stumps, or on rotting logs, Urumuwela, 

 1906 ; Peradeniya, November, 1909 ; Eladuwa, June, 1910 ; 

 tjrpe in Herb. Peradeniya, No. 5812, Peradeniya, November, 

 1918. Specimens, probably this species, up to a foot in 

 diameter, have been seen in a damaged condition in the 

 low-country. 



Boletus aureomycetinus Baker and Boletus pernanus Baker, 

 from Singapore, which both have yeUow mycelium, differ, inter 

 alia, in not changing colour when broken. 



Boletus sylvestris n. sp. 



Pileus 3 cm. diameter, pale bay-brown, rather darker in the 

 centre, convex, centre slightly depressed, duU, minutely 

 pruinose ; flesh rather thick, white, turning brownish when 

 cut. Stalk equal, curved, stuffed, 3' 5 cm. long, 4 mm. 

 diameter, brownish, whitish at the base, yellow at the apex, 

 covered with minute red-brown points. Pore surface greenish- 

 yellow, with a deep sinus round the stalk ; pores 4 mm. long, 

 mouth angular, up to 0" 5 mm. diameter. 



On the ground in jungle, Hapugastenna, October, 1909 ; 

 No. 2990 in Herb. Peradeniya. 



