140 
THE REPllODUCTION OF ASCOMYCETES. 
Placed upon tlie nutritive liquid, they have not presented any 
development ; upon the pure water, on the contrary, after two days 
and a lialf one might see upon the partition one or two prolonga- 
tions, not terminal, but borne at some one point of the side of the 
concavity or convexity, as if the spore was disposed to germinate 
without augmentation of volume; but this development does not 
always take place. In repeating anew the same sowing under the 
same conditions, I have obtained the same results, equally incom- 
plete. The same fact is presented under similar circumstances 
with the Quaternaria Persooni^ the spermatia of which are like- 
wise linear and recurved en arc. 
Thus in this case, as in the preceding one, the water which has 
determined the dehut of the development of these spores has only 
produced a more considerable elongation ; an appropriate nourish- 
ment appears necessary. We will show further on that the 
spermatia of the Aglaospora profusa have only to be sown upon a 
branch to give place to the production of the Ascomycete. 
In order to achieve the demonstration that the spermatia are really 
some spores and not male organs more ordess analogous to the anthe- 
rozoids, and in order to demonstrate that they germinate easily in 
certain cases, it will be sufficient to signalise the species the 
spermatia of which germinate in water, and the development of 
wdiich is least difficult to obtain. 
Many of these species are indicated in the magnificent work 
of M. Tulasne, and have been represented by him in this state. 
Dothidea melanops (Carp., t. 11, p. 73, pi. 10). — The spermo- 
gones, with spermatiophore branches represented {loc. cit. f. 6), 
are the analogies of those of the Dothidea rihesia, Fr. {loc. cit., pi. 
9, fig. 4), upon which we have no doubt. More condensed 
here and more confused, they bear none the less some identical 
organs, some spermatia. The presence of stylospores very 
clearly confirms still more this determination. In the meantime 
their germination is represented (fig. 7) by M. Tulasne himself. 
Their increase in size is very notable. M. Tulasne calls them 
spermatiform microspores. 
Entypa Acharii (p. 53, pi. 7, fig. 8-20). Here are represented 
some microtylospores which likewise have germinated. The author 
also figures the same, born upon some free branches much resemb- 
ling the spermatiophore branches (fig. 10). This identity drew 
from him the remark that this proves how many are allied to one 
another, the conidia, and these small spores, considered as sper- 
matia, or stylospores {loc. cit. p. 54): “ E mira ilia similitudine 
manifeste patet proximam conidia inter et semina exilia pro stylos- 
poris vel spermatiis habita etiam exstare necessitudinem.” He 
names them stylospores, but in the E. flavovirens he named the 
analogous corpuscles {loc. cit., fig. 4. p. 58) spermatiform stylo- 
spores, and says nothing at all about their germination. 
In the enumeration of the Valsas one will likewise find described 
