SECTION 10. 



Petaloides, velutinate, hirsute (smooth in one species). Pileus flabelliform or 

 spathulate, sessile, attached by a reduced base. As these plants do not have stipes, 

 but are merely reduced at the base, they should not be placed in the "stipitate" 

 section, perhaps rathei in the Apus section. But they are never truly dimidiate, 

 hence intermediate between the two sections. Several species normally dimidiate, 

 as Stereum lobatum and Stereum fasciatum often have similar attachment, and 

 might be sought here. 



Fig. 563 



Stereum involutum. 



STEREUM INVOLUTUM (Lloydella) (Fig. 563). Pileus 

 spathulate, or suborbicular, attached by a reduced base. Upper sur- 

 face brown, velutinate with narrow, concentric zones. Hymenium 

 smooth, reddish-bay with a waxy appearance. A section shows a 

 thick (90 mic.), compact, even hymenial layer, very distinct from 

 subhymenial layer, which is much lighter color. There are a few 

 typical metuloids, thick, hyaline, rough, projecting but little. (Hence 

 it is a Lloydella). 



Stereum involutum was named by Klotzsch (as Thelephora) 

 from Mauritius. It appears to be not infrequent in Africa, Australia, 

 and the Pacific Islands. It has a peculiar, hymenial appearance 

 which may be recognized at sight when once learned. The two 

 following, with the same hymenium, differ as to upper surface, but 

 for me are only forms. 



STEREUM PROXIMUM. I made one collection in Samoa which I am 

 convinced is a form of Stereum involutum, although I have found no metuloids. 

 Otherwise it is quite the same as to peculiar, waxy, thick hymenium, color, attach- 

 ment, etc. The upper surface is more finely velutinate. 



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