330 BOTANICAL GAZETTE [OCTOBER 
a depauperate condition of the hymenophore extending down on the stem, as 
in B. edulis described by Yates (form B. pl. 22. fig. 10) and by PATOUILLARD 
(Tab. Analyt. Fung. no. 9, 1883). Besides a few basidia, bearing spores, in 
this reticle on the stem, PATOUILLARD states that cystidia are also present 
similar to those in the normal hymenium of this species, while YATES says 
that cystidia are not present in the forms he examined, although one would 
suspect their presence from his figure. This vesture on the stem of some species 
may grade from a reticle above to an even tomentum below, or to tufts more 
or less crowded, or without a reticle tufts more or less crowded or disparate 
over the stem (B. luridus, for example). Similar examples of depauperate 
hymenia are abundant in the Basidiomycetes, and even occur in the Ascomy- 
cetes, in Gloeoglossum difforme, for example (see DuraND, Ann. Myc. 6421. 
figs. 160-162. 1 
Some of the diffetent forms of B. chrysenteron's described may be inter- 
preted as due to variations in the vesture of the stipe, the tomentum of the 
pileus, and the color changes resulting from the presence of oxydases, due to 
age, vigor of growth, relation of the dissepiment edges to the stipe surface 
during the origin of the hymenophore, etc., which cannot be enlarged upon here. 
However, the author es no mention of the structural features of the 
usually sterile dissepiment edges, which in many species of agarics, at least, 
bear a very interesting relation to the vesture of the stipe. 
The author very properly remarks that, by authority of the Third Botan- 
ical Congress (Brussels, 1910), Frres’s Systema Mycologicum, 1821, is 
starting-point for the nomenclature of the Hymenomycetes. But he follows 
MouRRILL’s nomenclature of the Boleti, perhaps unaware that this author 
does not recognize the rules adopted by the Vienna and Brussels congresses, 
the two largest and most representative legislative assemblies of botanists 
ever held. One of the deplorable results of this hunting for names by groping 
in the mystic and heroic age of mycology is well exemplified by the attempt 
to introduce the generic name Ceriomyces for the section containing the largest 
number and most typical species of the genus Boletus, and citing as the type 
of this genus Ceriomyces crassus Battarra.7 It is not likely that well informed 
botanists will discard the name Boletus edulis, which is in strict conformity 
with the international rules,* and use in its stead Ceriomyces crassus, a Con- 
1s The form C is very likely B. subtomentosus. Some students unite B. chrysenteron 
and B. subtomentosus. For some of the varieties of these two species, see BATAILLE, F., 
Les bolets, classification et determination des espéces. pp. 1-30. Besancon. 1908. 
%N. Am. Flora 9:133-161. IgIo. 
7 BATTARRA, J. A., Fungi Agric. Arim. Hist. 62, 63. pl. 29. 1755. 
% The generic name Boletus was properly retained by HENNINGS (ENGLER und 
PRANTL, Die Nat. Pflanzenfam. 1'**:191. 1898) for the section containing the larger 
number of species, including B. edulis, his action being entirely in accordance with 
the principle of the international rules adopted at Vienna in 1905, and at Brussels in 
1gto (see Article 45). 
