240 ~ BOTANICAL GAZETTE [SEPTEMBER 
produce such epidemics among fish as have been reported in other countries. 
Dead twigs, which have fallen into the water near the shore, form the most 
common habitat for these fungi. They sometimes occur on remains of aquatic 
plants, like Nuphar and Nymphaea, but herbaceous plants do not generally 
seem to be a favorable substratum for their growth. Leaves which fall into 
ngi. ) 
Phycomycetes is in early spring, while the water is still too cold to allow growth 
of bacteria and infusoria. 
The rest of the paper consists of a taxonomic arrangement of the species, 
with notes as to their habits and occurrence. The brief descriptions which 
are given for the known species in the former paper are omitted in the trans- 
lation, diagnoses being given only for the new species. Of these there are 
twelve. One, Pythiomorpha gonapodyoides, represents a new generic type. It 
is unfortunate that the designation ‘“‘sp. nov.”” accompanies the names of these 
species in the translation. It is needless to point out the confusion that may 
result from such double publication of new species in editions appearing 
nearly a year apart. 
The paper, which is an excellent achievement in local botany, shows the 
results which sustained study of a group may be expected to yield in territory 
of which the flora is presumably fairly well known. It is to be hoped that it 
may direct the work of botanists of other countries to this fruitful field. 
According to a brief article by MatrE and Tison,™ sexuality usually attrib- 
uted to Urophlyctis is lacking in that genus. In Urophlyctis empty cells are 
found accompanying the sporocysts, thus making it appear as if conjugation 
had taken place. These empty cells, however, according to the authors, are 
nothing more than the older vegetative cells whose contents have passed into 
the younger cells, which arise as buds from the older ones. The authors con- 
genera, Urophlyctis, Physoderma, and Cladochyirium, forming a well-defined 
natural grow 
CHMER RED has described the abnormalities occurring in a species of 
of these plants and some of which have been figured by several investigators, 
occur mostly in the sporangia, and cause these organs to assume forms and 
modes of behavior characteristic of other genera of the Saprolegniales. Varia- 
tions are described simulating the sporangia of Leptomitus, Pythiopsis, Achlya, 
%8 Marre, REeNf, et T1soNn, ApRIEN, Recherches sur quelques Cladochytriaceae. 
Compt. Rend. 152: ie 10%. nee 
19 LECHMERE, A. FE, g ofa species of Saprolegnia New Phytologist 
9: 305-319. pls. 1, 2. Ig10. 
