Banker: Type Studies in the Hydnaceae 



315 



observed; hyphae hyaline, firm-walled, elastic, infrequently 

 septate, clamp-connections occasional, not easily separable in 

 KOH ; tasteless ; odorless. 



Mexico. Collected by W. A. Murrill. 



Type (Murrill 253) in the New York Botanical Garden. 



The species appears to be closely related to Hydnum razmkense 

 Pers. and vS". Peckii, but is more delicate, with a thinner pileus, 

 and is clearly distinguished by the dark brown disk and base. 



Steccherinum Morgani Banker, Mem. Torrey Club 12 : 



127. 1906 



As has already been stated, the type of Hydnum glabrescens 

 Berk. & Rav. is No. 1634 Ravenel, with which Berkeley also 

 associated No. 385 Thwaites. These specimens are preserved 

 in the Berkeley herbarium at Kew, England. No. 1634 has every 

 appearance of being Steccherinum rawakense (Pers.), q. v., but 

 is not quite typical. No. 385 is simply marked 385 Hydnum 

 glabrescens B. & Rav." and is without any date or locality indi- 

 cated. The specimen is badly worm-eaten and a mere scrap, but 

 does not appear much like No. 1634. It does resemble another 

 specimen in the herbarium marked " Hydnum glabrescens B. & 

 R." in Berkeley's hand. To this specimen is attached a slip with 

 the following memorandum : "A form apparently of no. 385 sent 

 before. Hydnum Central Province Dec. 1868," probably a note 

 by Thwaites. This specimen is also in poor condition. A third 

 specimen with these has no name attached, but is marked " Ceylon 

 1866 G. H. K. T." This specimen is in much better condition 

 than the others and strikingly resembles the plants that I described 

 as Steccherinum Morgani loc. cit. from specimens collected by 

 A. P. Morgan in Ohio. 



These three specimens so far as can be judged are apparently 

 all one species and were probably all collected by Thwaites in 

 Ceylon. On the testimony chiefly of the last specimen they seem 

 to approach closely to the Morgan plants, yet the specimens were 

 too poor to draw positive conclusions. In the Cooke Herbarium, 

 also now preserved at Kew, was found a specimen marked simply 



Hyd. glabrescens B. & R. Ceylon." This was so perfectly 

 identical with the Morgan plants in every way that it seemed nor 



