182 BOTANICAL GAZETTE [Marcu 
while parting with the absorbed moisture. Pressure would crowd 
the lamellz close together and crush them against the pileus, 
obliterating one of the most distinctive features of the fungus. 
In a well prepared specimen, unless the lamallz are very broad, 
one should be able to look between them to the under surface 
of the pileus and make out venose connections if present. 
If the plants are to be poisoned with a solution of corrosive 
sublimate or of strychnin, the poisoning should be done just 
before placing the specimens between the driers. 
Mountinc.— They will be dry enough for mounting after 
they have lain two or three days between the driers. Species 
sheets of standard size will be found preferable to half sheets 
for an herbarium of fleshy fungi. If the collectionfis small, it 
may be placed in an envelope of the Gray Herbarium style, and 
the envelope, bearing its label, should be glued to a card of 
somewhat larger size near its lower end (jig. 4, lower right 
hand corner). Sheets of mounting paper may be cut * 
halves, quarters, eighths, etc., for the cards. If the specimen 
is not scanty, two typical plants should be glued to the nit 
part of the card, one showing the upper surface of the plant | 
the other its undersurface. These plants outside the packet facilt : 
tate comparison when referring to the herbarium, and they also 
catch the eye as one turns the sheets, and help to keep the species 
well remembered (see fig. 4, upper left hand corner). wa 
The small card bearing the collection, part on the card # : 
the remainder loose in the envelope, should be pinned to t : 
species sheet at some place which will aid in keeping fat 
pile of sheets of the genus. The several collections oF peer 
of the same species may be advantageously pinned to the 
species sheet. If the collection is very large, 4 large 
of the style used by Ellis in N. A. Fungi and Fungi Colum 
will hold the specimens from falling out better than the 
Herbarium kind. 
, eee ether 3° 
By this method the whole collection is kept t°8 be too 
specimen in the herbarium. A specimen is not likely t a 
ample. If some plants can be spared from it for exe 
