168 FUNGI. 
granular protoplasm, in which float largo oleaginous drops. 
Whilo the zygospore is increasing in size, the suspender of the 
smaller copulative cell becomes a rounded and stipitato utricle, 
olton divided at the base by a septum, and whieh attains almost 
to the size of the zygespore, Tho suspender of tho larger eopu- 
lative cell preserves its primitive form and becomes scarcely any 
larger, It is rare that there is not a considerable difference of 
sizo between the two conjugated cells and the suspenders.® 
Similar conjugation with liko resulis also takes plac in 
Syzyyites meqalocarpus. In this species the germination of the 
vy gospores has been observed. If) after a cortain time of repose, 
theso bodies are placed on a moist: substratum, they emit a 
germ-like tubo, which, without originating a proper mycelinm, 
develops at tho expense of tho nutritive material stored ins the 
zyospore into a carpophoro or fruit benver, whieh is many times 
dichotomously branched, bearing terminal sporangia claractor- 
istic of tho species. 
Tt has alveady been remarked by us that tho Sprofeqe’ ave 
claimed by somo authors ag Alew, whilst wo are more disposed 
to regard them as closely alliod to tho Mucors, and as they 
exhibit in themselves strong evidence in support of the existence 
of soxual reproduction, wo cannot forbear giving a summary of 
what has been observed by Do Bary and othors in this very 
intorosting and singular group of plants, to which My Cornu has 
recently dedicated an exhaustive mouograph.t 
In Saprolegnia monoica, and others, tho fomalo organs consist 
of cogonin-—that is to say, of colls which aro at first globoso and 
rich in plastic mattor, which most gonerally terminate short 
branches of tho mycelium, and which are rively seen ino an 
intorstitial position, Tho constitutive mombrane of tho adult 
oogonia is voubsorbed in a groat many points, and is thoro 
pierced with ronnded holes. At tho samo time tho plasmn is 
divided into a Targor or smallor numbor of distinet portions, 
which aro rounded into little spheres, and separate from tho 
* Do Bary, ‘ Morphologie und Physiologio dor Pilve," oap. 5, p. 1605 
Ann, dos. Sei, Nat.” (1806), p. S43, 
+ Cornu, in Ann, dos Sui, Nat.” (6™* adr,), vol. xv. p. t (1872). 
