260 



IT O.Y,, k). Sterile outgrowths In liymenium of two kinds, (1) 

 slender lougli- walled cystidia, cylindrical, apes blunt, 4-5 [x wdde, 

 hyaline at apex, pale brownish below; (2) larger smooth-walled 

 hairs, cylindrical, apex blunt, 6-8 m wide, occasionally 2-3 

 septate, pale olive-brown. Basidia and spores not seen. Basal 

 liyphae loosely interAvoven, olive-brown, 3-4 /i. 



Ibadan. Common on old stumps by the side of streams. 

 Farquharaon 3. 



The margin when fresh is white, 



Hymenochaete castanea, Wakefield, sp. nov. 



SporopJwre late effusum, tenuum, arete adanatiini^ minute velu- 

 tinuni^ castaneum, ambitu, pallidius. Setulae densae, subuli- 

 formes, brunneae vix abhyphisdiversae. Cystidia omnino deipves^Hy ^ 

 fusiformia, laevia, tenuiter tunicata, interdum basi bifurcata,. 

 flavidula, 47-80 x 11-18 /x. Basidia hyalina vel dilute colorata, 

 27-30 X 5-7 /i. Sporae non visae. HypJiae subhymeniales laxe 

 intertextae, brunneae, 3-5-4 fx diametro. HypJiae basales vix dis- 

 tinctae, ccnglutinatae, flavido-brunneae. 



NiGEi^iA. Ibadan : ad folia palmarum et ad ramos emortuos 

 Thcohromae Cacao, Farquharson 5, 33. 



A remarkably distinct species, marked by the very thin, finely 

 velvety fruit-body, and the rich chestnut colour, varying from 



chestnut-brown " (Ridgway 11^ Orangem), to a much darker 

 shade. In structure it is remarkable for the very slender setae, 

 and the presence of sunken laticiferous bodies or ^^gloeocystidia/' 

 such a^ cccur in various other genera of Theleplioraceae. These 

 cystidia occasionally show one or two septa near the pointed apex. 



Cnx. 



a. 



Ilymenochaele casianea. 



Vertical section of sporophore. 

 Various forms of embedded cystidia 



Hymenochaete noxia, BerL in Herb 



Tissue thick, compact, of closely agglutinated brown hypbae, ' 



