REPORT OF THE STATE BOTANIST 63 



Prostrate trunks and ground among leaves in woods. Lewis county. 

 September. 



In this species the lamella}, under a lens, appear to be minutely 

 pubescent or velvety. This is due to the colored spinules or setae which 

 clothe them. These are subfusiform and .002 to .004 inch long, .0004 to 

 .0005 broad in the widest part. From this part they gradually taper 

 above to the apex and more abruptly below, forming a shorter and more 

 slender base. These spinules or setae also occur more sparingly on the 

 stems, but ttiey are scarcely visible to the naked eye. The species so 

 closely resembles the preceding one that it might easily be taken to be 

 a peculiar condition of it. The setae give the peculiar color and velvety 

 or pubescent appearance seen in the lamellae. They are apparently 

 similar in character to those found in the genera Hymenochaete and 

 Mucronoporus, and which constitute the essential character of these 

 genera. They differ, however, in not being limited to the hymenium as 

 in those genera, for in our plant those of the surface of the pileus and 

 the stem are clearly of the same character as those of the lamellae. This 

 would indicate that they are not of the same nature as cystidia. And it 

 is perhaps very questionable if these setae should be regarded as having 

 generic value even in those cases where they are present in the hymenium 

 only. Still their employment as a generic character is convenient if not 

 philosophical. But it is scarcely worth while to make a new genus for 

 this plant even though consistency should demand it, for I am not aware 

 of any other agaric possessing such setae. 



The characters of Colly bia lachnophylla Berk., as set forth in its descrip- 

 tion, correspond so closely to those of C. spinulifera as to lead to a 

 suspicion that the two plants are one species. But no setae are attributed 

 to C. lachnophylla and the character of its pubescence is not described, 

 ^ as it probably would have been if composed of stiff setae. Moreover, 

 specimens of our plant were submitted to Kev. M. J. Berkeley for his 

 opinion of them, without any recognition of a relationship to C. lach?io- 

 phylla. It has therefore seemed best to keep them distinct till they can 

 more clearly be shown to be specifically the same. 



Tephrophanse. 



This tnbe was limited by Professor Fries, in Epicrisis, to hygrophanous 

 species having a fuscous or cinereous color with cinereous lamellae. In 

 Icones Selectae, its limits were extended by him, so as to include species 

 having either cinereous or fuliginous lamellae. In the present arrange- 

 ment I have referred to it all our hygrophanous non-ccespitose species 



