448 ENUMERATION OF FUNGI. 
and Ag. miniatus from California. One species from Sitka 
was remarkable for its pileus being viscid to such a degree, 
that the spirit in which it was preserved was quite ropy. I 
have not ventured to describe this, as it resembles very 
closely Agaricus fetens. One or two species appeared new, 
but I found it impossible to do anything satisfactory with 
them. It is, however, an interesting fact that the species 
should be so closely allied to, or identical with, European 
forms, 
1. Agaricus (Mycena) quisquiliaris, n. s., pileo plano- 
depresso, striato, crenulato ; lamellis postice rotundatis, sub- 
adnatis, interstitiis reticulatis; stipite gracili, glaberrimo. 
(Tas. XIV 
On twigs, leaves, &c., New Ireland ; July Marquesas ; Jan. 
1840, 
B. pileo latiore, stipite curto. (Tan. XIV.) 
On sticks, New Guinea; August. 
Umber brown, at least in the preserved specimens. Pi- 
leus 4-1 of an inch broad, orbicular or somewhat irregular, 
membranaceous, plano-depressed, smooth, with the margin 
striate and irregularly crenulate. Gills subfalcate, rounded 
behind, but more or less attached to the stem, sometimes 
slightly anastomosing with reticulate interstices. Stem i- 
inch long, scarce half a line.thick, tough, smooth, but some- 
times clinging to the leaves by a few short distinct white 
threads. 
Two or three forms of this species occur in the collection, 
or at least specimens which I cannot distinguish. The most 
remarkable of these, which is my var. f.., has just the habit 
of Ag. centunculis, with the pileus half an inch broad. The 
species appears to be allied to Ag. metatus. 
Tas. XIV. a.a. A. quisquiliaris, nat. size. ; b. b. magnified ; 
c. section.—A. quisquiliaris 8. nat. size. 
2. Ag. (Mycena) echinulatus,n. s. ; tenerrimus, pileo con- 
vexo, subhemispherico, membranaceo, aculeis curvis echinu- 
lato, demum glabrato, umbrino ; margine crenulato, striatulo; 
lamellis liberis, subventricosis, concoloribus ; stipite tenul, 
