286 POLYPOREAE OF SOUTH AFRICA. 



about 1 mm. long; mouths round to elongated, irregular, 2 to 3 to 

 the mm.; edges thick or thin, somewhat lacerate, yellow; spores 

 hyaline, smooth, 3-7/x by 7/lx ; hyphae 3/x to 7/a diam. 



Distribution'. — Found at Durban, Natal, on rotten log. Dis- 

 tinguished from P. occidentalis by its habit of growth, more tuber- 

 culate surface and context in older part and part above substratum 

 being extremely hard and woody. (Cotype in Natal Herbarium, 

 No. 226.) 



17. Trametes zimmermannii, Bres. 



Plants perennial, sessile; pileus dimidiate, convex, woody, 

 8 cm. by 4-5 cm. by 1 cm. to 3 cm., decurrent behind; surface 

 hard, ashy grey, azonate, minutely tomentose to glabrous, some- 

 what fissured but not rimose ; context straw yellow, hard and 

 woody, zoned, shining; tubes 1 mm. or less long, elongated on 

 reflexed portion, stuffed in older strata; mouths subrotund to 

 irregular, approximately 2 to 3 to the mm.; edges entire, firm. 



Distribution. — Found at Pietermaritzbui'g, Natal, by the 

 writer. According to Mr. C. G. Lloyd this fungus was named as 

 above by Bresadola in MSS. 



18. Trametes incondita, Fries. 



Plants sessile or resupinate, pilei perennial, corky or woody, 

 irregularly developed, at times imbricate, 3-7 cm. to 75 cm. by 

 2 cm. to 3-5 cm. by 0-3 cm. to 2 cm.; surface closely concentrically 

 sulcate, dark; context thin, corky, yellow, with white corky patches 

 and this white tissue appears to practically replace the true con- 

 text; tubes 04 mm. long, yellow within, becoming stuffed in older 

 layers, areas of white patches also in hymenophore in section ; 

 mouths subrotund, 4 to the mm., edges thin, entire, yellow; spores 

 irregular globose to elliptic, 7ju, to 8/x diam. to 5/x by 7{x to 8/x ; 

 hyphae 2/x to 4/x. 



Distribution. — Recorded by J. D. Keet in Eastern Cape Forest 

 Conservancy on Ptaeroxylon utile. 



Recognisable by the irregular development of the pilei, the 

 short tubes and the white patches in the attacked wood, in the 

 context and between the tubes in section. 



A study on the development of this fungus should prove 

 interesting. On attacked wood there are small, pale, corky nodules, 

 white within, which are evidently the beginning of the develop- 

 ment of pilei. In the irregular pilei these noduies are evident at 

 the back and the pilei are by them evidently attached to the sub- 

 stratum. These nodules also develop from the back of the pilei. 



Daedalia (Pers.), Fr. 



Plants sessile or effused reflexed, epixylous, annual, rarely 

 reviving; pileus coriaceous to tough, corky or somewhat woody; 

 context white to light coloured, tough, firm, corky or subwoody; 

 hymenophore typically daedaloid, but sometimes poroid or lamel- 

 late; spores hyaline. 



