148 
[CRYPT0GAM1A. FUNGI. Agaricus. 
Bull. 288, and 498. 1. 
Stem solids pale brown, tapering downwards, near quarter of an inch high, 
and about half as thick. 
Pileus nearly semi-circular, smooth, pale grey brown, hollowed and uneven, 
sometimes marked with concentric lines, half an inch over. 
Gills or veins, branched, anastomosing, resembling those of M. cornuco - 
pioides. 
(Moss Merulius. E.) Ag. muscigenus. Bulliard 288. Helvetia dimidiata. 
ib. 498. 2. SeeilT. membranaceus. 
This plant is found in great plenty in the months of August and September, 
growing on the Hypnum sericeum , and I never found it on any other 
moss. Bulliard. 
Var. 2. Stemless, circular, white. 
About half an inch in diameter; substance very thin. 
On moss in Packington Park. Autumn. 
(3) Stemless. 
M. membrana'ceus. Sessile, membranaceous, smooth, lobed, curled at 
the edge ; veins on the under side branched. 
{Sowerby 348. E.)— Bolt. 177— Bull. 498. 1.— {FI. Dan. 1077.1. E.) 
j Root longish, slender, fibrous. Plant half to one inch over; flat, thin, 
flexible, tough, red brown above, yellow brown beneath ; veins branched 
and anastomosing. Lobes broad, deep. Bolt. (Whole plant somewhat 
like wet parchment, lobed and waved irregularly, with veins on the 
under side. It is mostly of a light brown colour, and grows either with 
or without a root-like membrane. Sowerby. E. 
Membranaceous Brown Merulius. E.) Helvetia retiruga. Bulliard. 
H. membranacea. Bolt. Dicks. {Merulius retirugus. Pers. E.) Mossy 
soil; thatched houses ; bogs. 
AGAR/ICUS.* 
Pileus with gills underneath. Gills differing in substance 
from the rest of the plant. Seeds in the gills. 
A. Stem central. 
I. SOLID AND DECURRENT. 
(1) Gills white. 
Ag. umbellif^erus. Gills white, broad at the base, few, two or four 
in a set: pileus white, convex, a little bossed, elegantly plaited at 
the sides; stem white, slender. 
Mich. 80. 11 —Bull. 519. 1. A—Bolt. 39. A— Mich. 74. 7 —Buxb. 4. 31.3. 
Gills fixed, white, mostly in pairs in the small, in fours in the larger plants, 
long ones about eighteen. 
* (Said to be derived from dyxpixfo, Agaria, a town in Sarmatia; but why or where¬ 
fore is not very apparent. E.) 
