480 The Botanical Gazette. [November, 
completely fill the oogonium. In almost every specimen ex- 
amined the small rounded antheridium was present at the side 
recalling that of species of Rhipidium. It is quite uncertain, 
however, whether these spores are really connected with the 
zoosporic form which they accompany. 
GONAPODYA SILIQUAEFORMIS (Reinsch). Plate XXXT, figs. 
6-I0. 
Saprolegnia siligaeformis Reinsch l. c. 
Gonapodya prolifera Fischer 1.c. Schroeter in Engler and Prantl 
Natiirl. Planzenfam. 93: 107. 1893. 
Hyphez rather stout, more or less regularly divided into 
short elliptical to long clavate segments, copiously and suc- 
cessively sub-umbellately branched, the branches diverging 
in a dense tuft from a common base. Sporangia often once 
to three times proliferous, long pod shaped, inflated below, 
the sometimes very elongate distal portion tapering gradually 
to a blunt apex; borne sessile on the terminal cell of a branch 
or separated from it by aclearly defined constriction. Zoospores 
numerous (more than fifty), uniciliate, oval or elliptical with 
conspicuous nuclei. Oospores (sec. Cornu) oval in terminally 
perforate oogonia like the sporangia. Hyphz 250-500, long, 
‘the segments normally about 2 5X14, but varying greatly. 
Sporangia, average 130x 22, sometimes 200—250y long. ; 
On decaying apples in water. Cambridge, Mass., and Kit- 
tery Point, Maine. 
This species appears to be decidedly rare and has been col- 
lected by the writer on two occasions only, growing in dense 
tufts which formed small pustules on the surface of the sub- 
stratum above mentioned, and there seems to be no record of 
its occurrence since it was found by Reinsch in a similar sit- 
uation. It is distinguished by its very large tapering spo- 
Trangia, the distal portion of which is sometimes very greatly 
elongated. Though its hyphe are commonly rather regu- 
quite distinct from base to apex within the primary ones, 
though more commonly the distal portion only is distinct as 
is represented in fig. 6. 
