188 
A. E. Lechmere. 
colourless endospore. The contents are composed of granular 
protoplasm, containing a deeply coloured concentric globule of fat 
(p. 186, fig. 11). Germination has not been observed. 
The foregoing is the full account of the various methods of 
reproduction found in this species while following its life history 
by means of various cultures in the manner already described for 
Species I. Before proceeding to the determination of the species 
and genus, the following brief summary of the chief characters 
is given. 
Summary of the Life History of the Species II. 
Mycelium composed of fairly stout unicellular hyphae, average 
30/-/.. diameter, bearing terminal cylindrical sporocysts, zoospores 
are discharged through terminal opening and are diplanetic. New 
sporocyst frequently formed from a segment of the hypha cut off 
immediately below discharged sporocyst. Zoospores from second 
sporocyst discharged through empty case of first. Sporocyst 
formation may continue by retrogressive segmentation of the hypha. 
Upgrowth (durchwachsend) of the hypha also occurs and frequently 
continues beyond the limits of the sporocyst wall, forming a 
superposed sporocyst. Multiple sporocysts are often found and 
may form chain gemmae. Ordinary gemmae of various shapes also 
occur and on germination give rise to sporocysts or oocysts. The 
oocysts are spherical, pear- or barrel-shaped, and are borne singly 
on lateral branches to which they remain firmly attached ; they 
occur in large numbers and usually contain many ova (six to twelve). 
Special small oocysts are found containing only one oospore. The 
first formed oocysts are often cylindrical in shape and resemble 
sporocysts containing ova. No trace of the presence of an 
antherocyst is found. 
General Classification of the Family. 
In the last paper only a very brief table of genera was given, 
based entirely on the variation in forms of asexual reproduction. 
The full table of classification of the family is given below, taken 
from Rabenhorst (17), after de Bary (3, 4). 
