In cutting an immature specimen the subgleba quickly 
turns yellow, the capillitium remaining white except when 
bruised by the knife. In drying it slowly turns yellow. 
Mature Plant. 
Peridium thin, breaking up and falling off. Capillitium 
dark olivaceous, subgleba much lighter, leather color. Spores 
globose, 4me. smooth, short pedicellate. Threads long, 
branching, slightly thicker than the spores. 
This plant I first found in 1896 in a garden at Pleasant 
Ridge, O. Additional specimens were brought in August, 
1898, by Henry J. Koch, which grew in a hot house at Walnut 
Hills, Q., and which agreed in every particular with the speci¬ 
mens I had found. It differs much in shape from C. rubro- 
flava, Cragin, the only yellow species heretofore described 
and there is no suggestion of “red” in our plant. Lycoper- 
don xanthospermum, Berk, described from India, we judge is 
not a Calvatia. _ 
23—THE GENUS PLUTEUS. 
(Of Cincinnati.) 
We have collected ten species and varieties of Pluteus 
in the vicinity of Cincinnati, of which three are common, viz : 
cervinus, longistriatus, and admirabilis and the others rare, 
having been met only a few times and most of them only once. 
In addition Berkeley determined chrysophaeus from this locality 
on dried specimens sent by Lea and Prof. Morgan deter¬ 
mined leoninus. As neither author mentions admirabilis the 
only and common yellow species which we find here, we pre¬ 
sume all determinations were made on the same plants. Prof. 
Morgan also notes two species phlebophorus and creatophyl- 
lus which we have never met. 
The students of the genus will find the following characters assist in dis¬ 
tinguishing the species. 
Fries divides the genus into three divisions: 
1st. Cuticle of the pileus fibrillose or sometime pubescent or tomentose. 
Here we would place cervinus (and its varieties,) granularis, longistriatus, tomen- 
tosulus, 
2nd. Pileus pruinate w’ith atoms-nanus and tortus (granularis notwith¬ 
standing its name does not belong in this section, if w r e have correctly determined 
it.) 
3rd. Pileus smooth-umbonatus, and admirabilis. 
The following points also should be observed, our notes of course, refer only 
to the species we have met. 
Color. Most of the species are fuliginous, cinereous or umber, varying to 
quite light shades, one admirabilis, is yellow. 
’ 12 
