JOURNAL OF MICROSCOPICAL SCIENCE. 
DESCRIPTION OF PLATE VI, 
Illustrating Mr. Archer’s paper on Saprolegniee. 
Fig. 
1.—Chain of four oogonia in Saprolegnia androgyna, sp. nov., show- 
ing the lateral male branchlets emanating from the oogonia ; 
the two upper oogonia with fully formed oospores, the lowest 
but one showing the contents commencing to become formed 
into primordial cells (Befruchtungskugel, Pringsh.)—the future 
oospores; the lowest oogonium with the granular contents 
dense, but unchanged. 
2.—A single terminal oogonium of Achlya cornuta, sp. nov.; its granu- 
lar contents not yet commenced to be formed into a primordial 
cell or cells. 
3 & 4.—Series of oogonia, the first smaller and with one oospore each, the 
latter larger, with a greater (variable) number; to right of 
middle oogonium is seen a curious depressed lobate form assumed 
by one of the extensions, instead of the usual tapering cornua. 
5.—Shows the development of a lateral branch just under an oogonium ; 
and— 
6.—Three such branches, two of which have become shut off at their 
extremities and developed each an oogonium, each with a single 
oospore. 
