56 DECADES OF FUNGI. 
piments thin, laciniate, often breaking up into fine lamelli- 
form processes. 
Allied to Pol. abietinus, but at once distinguished by its 
far larger pores, which break up into lamelliform plates, so as 
to present the appearance of a Dedalea, and the different 
aspect of the pileus. It is also nearly allied to P. Menandianus, 
Mont., pergameneus, Fr., arcticus, Fr., laceratus, Berk. ; but 
it is on a larger scale than any of these. Individuals occur 
in which the zones are scarcely visible, and the whole aspect 
of the pileus different, but they have evidently been affected 
by some external causes. 
* P, ferruginosus, Fr. 
On dead wood. 
43. P. (Resupinatus) tardus, n. sp. albus; mycelio ceraceo 
corticiiformi, margine angusto tomentoso; poris tarde eyo- 
lutis parvis integerrimis.—Drumm. n. 130. 
On dead wood. 
At first resembling Corticium molle, at length produc- — 
ing pores, and forming large patches with a narrow tomen- — 
tose margin ; orifices of the pores, which are about 1-100th 
of an inch in diam., quite entire, rather obtuse. The hyme- - 
nium is at first white, but in drying assumes an ochraceous 
tint. 
This species, if the pores were not well-developed, would 
almost belong to Merulius. It isa very distinct species, Et 
difficult to characterise in words. 
* P. vaporarius, Fr.—Drumm. n. 136. 
On dead wood. 
Two other allied forms occur on dead wood; one, n. 137; 
which changes very little in drying, but has no other promi- 
nent character though possibly distinct; and another, with- - 
out any number, on very rotten wood, which has the pores - 
precisely like those of P. vaporarius, but scattered in patches, | 
the interstices having a peculiar glistening appearance, as dE 
powdered with some kind of fecula. This under the micro- | 
scope is found to consist of innumerable crystals, and polt - 
sibly may be entirely independent of the — se 
