STEREUM BRESADOLEAXUM. Pileus orbicular, spathulate, attached by 

 a reduced base. Upper surface dark brown, smooth, with narrow zones. Hymenium 

 smooth, reddish bay, with a waxy appearance. Same metuloids and structure as 

 Stereum involutum. 



There are collections of this plant from Africa at Berlin, also at Paris, referred 

 by Bresadola to Stereum bellum "cum typo comparatum." There must be some 

 confusion as to the type of the latter plant. The type of Stereum bellum is Kunze 

 exsiccatae, collected at Madeira by Holt, on trunks of Laurus. It is for me the same 

 as Stereum versicolor in its true sense, with little resemblance to this plant. There 

 are two examples of this exsiccatae at Paris. One in Desmaziere's herbarium, the other 

 in Montagne's. As the pileus of Stereum Bresadoleanum is smooth, it really does 

 not come in this section, but we include it on account of its evidently close rela- 

 tionship to Stereum involutum. 



SYNONYMS. 



Stereum bellum in sense of Bresadola not Kunze is Stereum Bresadoleanum. 



Stereum phalanarum, Australia, Kalchbrenner = Stereum involutum. 



Stereum prolificans, Queensland, Berkeley. Exactly same as vespilloneum and also involutum 

 for me. 



Stereum vespilloneum, Aru. Islands, Berkeley. I am sure is the same as involutum. Same 

 peculiar structure. The form is more orbicular, hymenium deeper red, zones are more distinct, but it 

 can not be held as a distinct species. 



SECTION 11. HYMENOCHAETE. 



The section Hymenochaete, which is held by many to be a distinct genus, is 

 based on one character only, viz.: deeply colored, rigid, sharp setae that are formed 

 on the hymenium. These setae, not projecting over 60-100 mic. from the surface, 

 are microscopic objects, but fungi of this section may be recognized by the eye by 

 the color and velvety appearance of the hymenium. We feel it is illogical to base a 

 genus in Thelephoraceae on these setae alone, when exactly the same setae occur on 

 most other fungi Agarics, Polyporii, Hydnoids, etc. and in no other class of 

 fungi genera are they held to be of even sectional importance. If these setae make 

 a genus in Thelephoraceae, so should they also in Polyporaceae, etc. We might 

 concede the use of the name as a convenient division of resupinate species, but 

 the old pileate Stereums with these microscopic setae are best called Stereum, as 

 they were originally. 



There are several species of this section among the sessile species of Stereum, 

 but really only one known in the stipitate section. 



STEREUM DAMAECORNE (Fig. 564). The entire plant, in- 

 cluding context, is bright bay-brown. It has a stem varying from 

 two to six inches long, which is brown, tomentose. The pileus is 

 most variable as to shape, and hardly two collections are the same. 

 Sometimes the stem is simple and bears a single regular pileus. Rarely 

 it is infundibuliform. At other times it divides and bears several 

 pilei. The shape is more or less reniform, but it varies from simple, 

 regular, entire to crenate, deeply lobed, or in the moie complex form 

 it becomes pinnatifid or imbricate. 



The hymenium is concolorous and velutinate to the eye, caused 

 by densely colored, rigid, slender setae, projecting 60-100 mic. 



FORMS. The species based on shape have not even value as forms. They 

 are only individuals. Stereum reniformis is the simple form. Hymenochaete 

 Schomburgkii is the pinnatifid form. Stereum elevatum is the cup-shaped form. 

 Hymenochaete formosa is the frondose form. 



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