20 
'> 
MOXOGRAPU OF THE LABOULBEXIACE^. 
observed and figured in several instance.-;. The developmental relations between the 
appundnge peritlieclinn and receptacle were accurately made out in connection with 
a Laboulbenia and Stigmatomjces, and the origin of the asci as buds 
The asci were not, howeverj accurately 
the two geucr 
fi 
•om some ceii 
tral cell was suggested. 
observed. A third paper by Peyritsch, published in 1875, contains additional notes 
on the devtdopment and occurrence of the Lfiboulbeniacese, without, however, making 
any essential contribution to previously published data. In none of the papers of this 
writer are the characters of the male organs determined, and he seems to incline to the 
opinion that the latter are represented by the shorter branches of the appendages, 
which he regarded as pollinodia and supposed to conjugate with the trichogyne. 
of Peyritsch, we have iii 1884 the suggestive sum- 
■ - 
then known in the 
FoHowlng these pubhcutions 
as 
Tnavy by De Baiy of the characters of the group so far 
" Doubtful Ascomycetes" of his Morphology and Biology of the Fungi, etc. In 1S86 
occurs the note of Gerke, to which my attention was drawn through the kindness of 
Professor Giard, in which he gives a figure that, without doubt, is intended to rep- 
resent the " Appcndic'idaria entomopliila'" of Peck, published two years later. In the 
same year (1SS6), Karsten published in Hedwigia, mider the title " Doubtful Ascomy- 
cetes," a reassertion of his former observations on the sexuality of Stigmatomyces, in 
reply to the pubhcations of Peyritsch and De Bary already mentioned, denying their 
ascomycetous nature and giving what he supposed to be the method by which the 
spores were formed. 
w 
^cies then 
k 
In 1880, Berlese again summarized the group, adding to the thirteen sp 
form (Lahoiilbcnia armillaris) found on an 
d from South Am 
With the exception of the writer's own notes on the family, but two papers published 
since the one just mentioned remain to be noticed : that of Giard (1892), in which he 
describes, as a new genus Thaxteria, a remarkable species of Laboulbenia from 
the 
Javan Mormolyce ; and that of Istvanffi (1895), in which he redescribes as Lahoul- 
benia gir/anlea a large form of Z. ehnrjata, giving his impressions of its morphology and 
development, stating his disbelief 
the 
1 
uality of the group, and 
xp 
the 
opmion that the individuals are derived from a vegetative portion growing 
body cavity of the insect. 
General Morphology and Development. 
Sp 
The 
spores of the Laboulbeniacese 
P 
a 
r]uite remarkable for so varied a group, be 
iformity of for 
d 
hyaline and fusifor 
all cases, without excep- 
or acicular in shape; and although in the 
o 
le genus 
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