192 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
should be called a false veil. It does not become a permanent struc¬ 
ture until the maturity of the fructification. 
Hence it seems evident that the false veil of Lentodium will not 
assist us in determining relationships since it is not homologous with 
the peridium of Gasteromycetes, nor with the partial or universal 
veils of Hymenomycetes, and is, so far as the writer knows, a struc¬ 
ture peculiar to this species. It is probable that the nearest relatives 
of Lentodium are to be found amongst the purely gymnocarpic Poly- 
poraceae and Agaricaceae. The porose-cellular hymenial region 
recalls both these families. In some instances portions of the ventral 
surfaces of young specimens present the regular pored aspect of a 
Boletus in which the mouths of the tubes are partially concealed by 
a thin veil; but in the majority of cases the pores are sufficiently radial 
in arrangement and in elongation to give the impression of anastomos¬ 
ing gills; this arrangement is especially striking near the stipe, and 
frequently amounts to decurrent ridges. 
Saccardo in vol. 14 of the “Sylloge” follows Morgan and places 
Lentodium beside Lentinus, but calls attention to the resemblance of 
its hymenium to that of the Polyporaceae. Hennings (“Pflanzen- 
familien,” vol. II**, p. 196) deems this resemblance so great that he 
places the fungus among the Polyporaceae, where he labels it an 
“ unvollkommen bekannte Gattung.” 
The writer would place the genus Lentodium between the Agarica¬ 
ceae and the Polyporaceae, with no near relatives. Among Poly¬ 
poraceae it most resembles such genera as Daedalea, Favolus, etc., 
which possess anastomosing gills, or irregularly shaped pores, but 
which lack closed spore chambers. In development, structure, con¬ 
sistency, etc., of stipe and pileus Lentodium closely resembles Lentinus, 
as has been noted by all previous observers; but no normal species of 
Lentinus has a similar hymenium. 
Bubak (’04) regards his new genus Lentodiopsis, as a connecting 
form between Lentodium and Lentinus. This genus is based on 
two somewhat dissimilar specimens found growing on roots of living 
fir trees near Tabor. In most respects they agree with Lentinus, but 
the decurrent lamellae anastomose to a certain extent at the stipe, 
which is “mit dem Hutrinde durch einen hautigen, ziemlich dicken, 
weiszen Scheier verbunden, welcher sich entweder am Steil ring- 
formig ablost und mit dem Hutrinde verbunden bleibt oder in strahlen- 
formige, beiderseits befestigte Streifen zerreisst.” This veil is not 
