CKYLON POLYPORI. 
137 
Pinkish -red, with a white radiating tomentose margin 
at first ; basal layer thin, white, lower surface red or red- 
brown, horny. In old specimens the margin becomes 
the same colour and consistency as the basal layer. 
Pores medium, up to 0*2 mm. diameter, angular, dis- 
sepiments thin and rigid. Total thickness about 1 mm. 
This species causes one of the commonest root 
diseases of tea in Ceylon. The affected roots are 
covered with red rhizomorphs and sheets of mycelium, 
which ultimately turn black. This is probably Trametes 
these Zimm. 
Poria hypobrunnea n. sp. 
Poria vincta Berk., in B. & Br., Fungi of Ceylon, 
500 (in part). 
Reddish-pink, becoming brownish-red when old ; 
margin white, tomentose. Total thickness 1*5 mm. 
Basal layer blackish-brown, stout, constituting half the 
total thickness, firmly attached to the substratum. 
Pores small, 0* 1 mm. diameter. 
3930, Gangaruwa, December, 1913 ; 3974, Pera- 
deniya, February, 1914. 
This, when fresh, appears to be a small-pored form 
of Poria hypolateritia, but its basal layer is dark brown, 
without any trace of red, and not horny. 
Subruber, ætate brunneo -ruber. Margine albo, 
tomentoso ; circa 1 * 5 mm. crassitudine ; contextu 
fuscobrunneo, crasso, matricem arete applicato ; ports 
parvis, 0* 1 mm. diam. 
Poria albobrunnea n. sp. 
3184, Hakgala, May, 1910, on Acacia decurrens. 
Watery and somewhat spongy when fresh ; rigid and 
separating from the substratum when dry. Totally 
resupinate. White becoming yellowish-brown when 
dry. Sterile margin white, rather broad, minutely 
tomentose. Up to 3 mm. thick. Pores in section 
pale brown ; basal layer stout, compact, blackish- 
brown, composed of interwoven yellow-brown hyphæ. 
Lower surface blackish-brown or olive, usually mottled, 
