1896. ] Aquatic Fungt. 51 
the material examined, the zoosporangia were comparatively 
rare. In all cases the resting spores were formed in grea 
profusion and seemed constant in form though somewhat vari- 
able in size. Their walls, though usually distinctly thick- 
ened, are never as conspicuously so as in the larger species, 
and might very properly be spoken of as conidia; since, in 
many instances, even after they are detached, their walls do 
not appear to be much thicker than those of the sporangia. I 
have never seen an instance, however, in which one seemed 
to have discharged its contents like the normal zoosporangia. 
The species is an insignificant one, and would not have been 
described without further observation, had it not possessed a 
pti interest in connection with its more highly developed 
a 
For convenience of reference a description of B. Pring- 
sheimit is appended, no measurements of this species having 
een previously published. 
BLASTOCLADIA PRINGSHEIMII Reinsch.—Main axis simple 
or several times successively branched sub-dichotomously 
sub-umbellately or irregularly, the free extremities usually 
but not always distally swollen into more or less well defined 
terminal heads. Reproductive organs, sporangia and non- 
sexual resting spores, produced terminally and sub-terminally 
and often associated with slender sterile filaments branched 
or simple and similarly produced. Sporangia long cylindrical 
to long oval, more commonly more or less pod-shaped, pro- 
ducing very numerous biciliate zoospores. Resting spores 
formed like the sporangia, spherical, oval, or long piriform, 
Zoosporangia 150X254 (50X25—225x18u). Zoospores 
about 7x 5u. Resting spores 50x 30-75 x 44yu.—On apples 
and other decaying vegetable matter in ponds and ditches. 
Vicinity of Cambridge, Mass., and Kittery Point, Maine. On 
eccaying apples in water, Germany (Reinsch). Plate III, 
gs. I-13. 
Cambridge, Mass. 
