1904] THAXTER: NOTES ON MYXOBACTERIACEAE 4°7 
yet unacquainted with any member of the order he discusses, 
having been misled by fancied resemblances and influenced no 
doubt by an exaggerated notion of the difficulties associated with 
the differentiation of rod-like bacteria from Oedocephalum, 
Torula, and similar hyphomycetous types. -A specimen of 
Myxococcus incrustans (Torula Myxococci-incrustantis n. sp. * Bac- 
terium Myxococci-incrustantis n. sp.), which Dr. Zederbauer has 
kindly communicated to the writer, serves further to confirm this 
impression. An examination of this specimen shows it to con- 
sist of a horny incrustation which at least closely resembles a 
dried up mouldy plasmodium, blackened by the abundant fructifi- 
cations of a toruloid hyphomycete ; and from the fact that the 
bulk of the mass consists of calcic carbonate, one might perhaps 
venture the suggestion that it may be related to the Physareae. 
That a number of organisms are associated in this lichen can 
scarcely be disputed; yet whatever it may prove to be, either as 
a whole, or in detail, it surely has no connection with any of the 
Myxobacteriaceae, as this group is at present understood." It 
seems, therefore, hardly necessary in the present connection to 
discuss the general characters of the order in the light of Dr. 
Zederbauer’s conclusions; or to do more than reaffirm the account 
given in the writer’s second paper, which is in his opinion sub- 
stantially correct throughout. 
The literary history of the Myxobacteriaceae thus bids fair to 
become as remarkable in its diversity as are the characters which 
make the order an anomaly among the plants which appear to 
be its nearest allies. There are certainly few groups including 
members which, as in the present instance, have been relegated 
to several genera of the Hyphomycetes, to the Gasteromycetes, 
to Eubacteria, to insect eggs, to Myxobacteria, to Myxomycetes, 
and finally to a group of “Splatpilzflechten;” and one can but 
*Since the present paper was sent to the GAZETTE for publication a mounted 
preparation containing sections of authentic material of Chondromyces glomeratus 
has been received from Dr. Zederbauer and proves to be the conidial condition of 
Coryne sarcoides (Jacq.) Tul., to which the name 7remella sarcoides was given by Fries. 
It need hardly be remarked that this fungus is a widely distributed and very common 
form, well known to mycologists, having no connection either with “lichens” or 
Myxobacteriaceae. 
