ON PENIOrHORA. 
19 
with the basidia, much larger, of a broadly fusiform shape, spring- 
ing from the same stratum as the basidia, but extending far 
beyond them, above the surface of the hymenium, for at least half 
their length. These bodies are not of the nature of setae, but are 
obtuse at the apex, hyaline, uncoloured, and externally rough with 
projecting warts, which cover the whole surface above the hyme- 
nium. In this form of hymenium we have the analogue of that 
which prevails in Hymenochcete , the variations being that the pro- 
jecting bodies are broadly fusiform or lanceolate, and not setaeform, 
are hyaline and not coloured, and are externally rough instead of 
smooth. 
A second example of this same type of structure will be found 
in another species equally well known and common, Corticium 
cinereum , Fr., but the projecting bodies, or metuloids, as they 
might be termed, are shorter, still narrowed towards each extremity, 
and externally rough. 
The same very distinct character will be found in the hymenium 
of Stereum disciforme , Fr., and also Stereum papyrinum, Mont., 
Corticium aschistum , Berk. & Curt., Corticium carneum, Berk. & 
Cooke, Corticium lilacinum, Berk. & Br., and Corticium fumigatum, 
Thuemen, which latter is only a form of Corticium cinereum, Fr. 
All the arguments which could be adduced in favour of Hymeno- 
chcete would apply equally to the separation of these forms, under 
a distinct generic name, to which we have applied that of Penio- 
phora, in allusion to the shuttle shaped bodies shown to be peculiar 
to the hymenium. Should it not be considered advisable to adopt 
a new generic name for these abnormal species of Stereum and 
Corticium , they will at least have to be brought together into 
Hymenochcete as a subgenus, leaving to Stereum and Corticium only 
those species which have a naked hymenium. 
There is still one other form which the hymenium assumes in 
two species distinct from either Hymenochcete or Peniophora. The 
type of this form is Hymenochcete veluticeps , Berk. & Curt., a 
species from Cuba, and the other less strongly developed species is 
Hymenochcete crocicereas , Berk. & Br., from Ceylon. In the 
former of these the hymenium is abundantly velvety, as its name 
indicates, but this does not proceed from simple setae, such as we 
have described to exist in Hymenochcete, but from pointed tufts of 
slender flexuous septate hairs which seem to be continuations of 
the fibrous substance of the subliymenial tissue, carried through the 
hymenium, and adhering together in conical tufts at the surface. 
These tufts are double the length of the longest setae in any known 
species of true Hymenochcete, and the septate hairs are quite of a 
different character. In the second species the same structure is 
found, but on a very much reduced scale, the compound conical 
tufts of septate hairs not exceeding in length the setae of Hymeno- 
chcete pellicula , B. & Br., which has perhaps the shortest setae of 
any known species. 
If these two species are still retained in Hymenochcete , they must 
