1895. Aquatic Fungi. 485 
EXPLANATION OF PLATE XXXI. 
Myrioblepharis paradoxa Thaxter. 
_ Fig. 1. Branched filament, showing a series of six sporangia, the sixth 
just ready to empty itself, its papillate tip hidden by the mass above 
it derived from the fifth sporangium; the contents of the fourth spo- 
rangium have divided into five zoospores which escaped immediately 
after the sixth sporangium discharged its contents. 
Fig. 2. ha having a series ot eleven sporangia, the eleventh 
half developed, the contents of the ninth borne on that of the tenth, 
and beginning to segment. 
ig. 3. A condition similar to that represented in fig. 1: the con- 
tents of the second sporangium having divided into four zoospores, 
the fourth sporangium just ready to discharge its contents. 
The same specimen, after the dehiscence of the fourth spo- 
rangium, the contents of which have united with those of the third 
while the zoospores derived from the contents of the second are sep- 
arating to make their escape. 
ig. 5. Two zoospores showing the extremes of size observed. 
Gonapodya siliqueformis (Reinsch) Thaxter. 
Fig. 9. sporangium, partly emptied, sessile on its segment, the 
four lower zoospores creeping on the inner surface of the wall. 
Fig. 10. Zoospores showing nucleus and anterior granular mass. 
Gonapodya polymorpha Thaxter. 
Figs. 11-12. Portion of two plants in which the segmented parts are 
borne sub-umbellately on slender hyphe. 
Fig. 13. Proliferous sporangia, borne on hypha, in which the seg- 
mentation is almost obsolete. : 
‘ig. 14. Two sporangia on the same hyphe, illustrating the extreme 
variation in the size of zoospores. : : 
Fig. 15. Two segments very clearly distinguished, bearing terminally 
4 sporangium from which the zoospores are escaping. : 
g. 16. Thick walled oospore with antheridium found associated 
the zoosporic form, but not definitely connected with it. 
«*,Note,—Figures 1-5, 8-10, 13-15, are drawn with Zeiss obj. D, oc. 4, the 
remainder with obj. D, oc. 2. All the figures reduced by photo-lithography. 
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with 
