Banker : Type Studies in the Hydnaceae 
65 
species in existence. Thanks to the excellent figures of Schaefifer 
there has never been much confusion as to the forms intended to 
be included in his species, and they have been more generally 
known by his name. The Linnaean species has been less clearly 
understood on account of the ver)' brief diagnosis and the lack 
of any figure. Nevertheless there appears to be only the one 
known European species to which his description can apply. 
Fries treated these forms as H. tomentosnin L. in all of his 
earlier work, but in Hymenomycetes Europaei 606 he rejected 
the Linnaean name, substituting the name of Schaeffer on the 
ground that the Linnaean species had the pileus tomentose, while 
in these forms the disk was only slightly villose or altogether 
glabrous.® While there is some truth in Fries’s comment, we 
believe that he has given it too much weight. It is true that the 
dark central disk of these forms is often nearly or quite glabrous 
but not always. Moreover, the whitish or light colored border 
of the pileus is always quite densely woolly tomentose. In the 
herbarium at Upsala a specimen was found labelled as follows: 
“ Hydnum tomentosum L. Upsala Sunnerstackog. 1851. E. P. 
Fries.” At first we took this specimen from its dark uniform 
chestnut or bay color to be a Hydnelhun rather than a Phellodon. 
It was only by a careful examination of the teeth and especially 
the spore characters that we became convinced that it was a 
Phellodon, and a representative of the present segregation in 
which the dark character of the central disk had spread quite to 
the margin, practically obliterating the usual whitish tomentose 
border. It may have been such an extreme form that induced 
Fries to abandon the Linnaean name. 
Phellodon carnosus sp. nov. 
Hymenophore terrestrial, mesopodous, solitary, light colored, 
medium size ; pileus expanded, plane to subconvex, slightly de- 
pressed, subround to irregular, 3-4 cm. wide, i mm. thick ; sur- 
face uneven to nearly even, light grayish brown at center with 
subpuberulent whitish or cream colored border about 3-4 mm. 
wide, azonate ; margin thin, sterile, incurved in drying ; substance 
*“Ad hanc speciem manifeste non pertinet H. tomentosum Linn., sed 
pileo tomentoso ad antecedentia (i. e. H. melaleucum). H. cyathiforme disco 
leviter modo villosum 1. omnino glabrum.” Fries, Hym. Eur. 606. 
