a 
niet linia 
Oe ee ee 
BOTANICAL GAZETTE 
FEBRUARY, 1896. 
Contributions from the Cryptogamic Laboratory of Har- 
vard University. XXX. 
New or peculiar aquatic fungi, 3. Blastocladia. 
ROLAND THAXTER. 
WITH PLATE III, 
In the two preceding notes on aquatic fungi reference has 
Several times been made to a paper by Reinsch! in which, 
among other interesting forms, he describes the curious genus 
Blastocladia ; including the single species B. Pringsheimiz, 
which, as far as the writer is aware, has not been again ob- 
Served. The genus has since been wholly ignored by system- 
Placed among the doubtful Saprolegniex. . Fischer in 
Bets Comycetes* includes it among the genera of this group 
which are doubtful or to be excluded, while Schroeter in his 
ies of the genus Rhipidium, as was formerly 
The uncertainties which have sur- 
Gdleiientas, « ve been in part due toa lack of exact knowledge 
the pla a3 't, and in part to the truly anomalous character of 
tins . “ee which occupies a distinctly isolated position 
N sinigad aquatic Phycomycetes. 
° withstanding the fact that it has remained unknown for 
fungj : “xperience to be one of the more common aquatic 
8h Occurring in almost every locality where it has been 
jPringsheim’s 
benh. K 
flanzenfam, 93: 103. 1893. [I Th., 1 Abth.]. 
pa segs . de France 24: 2271877. °° 
ol. XXI.—No, -. 
