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78 . MISSOURI BOTANICAL GARDEN. 
This species resembles the description of C. microspora 
E. and E. but differs in the shape of the ascospores, the 
size of the perithecia, and the length of the beaks. It has, 
in addition, a conidial stage, which serves to further set it 
apart as a new species. On account of the minuteness of 
its perithecia and spores it is named C’. ewigua. 
Ceratostomella moniliformis n. sp. 
Another species of Ceratostomella was found by Dr. 
von Schrenk growing on gum wood in Texas, near Kirby- 
ville, occurring on Liquidambar Styraciflua. This species 
stains the wood of gum a brown color, and is the most 
rapid growing form studied. It is distinct from the other 
species of Ceratostomella in the form of the conidial 
clusters, and in the early color of the mycelium. The peri- 
thecia are covered with short spines, otherwise resembling 
very much those of C. pilifera. The name Ceratostomella 
moniliformis is given to the fungus, with the following 
cultural characters :— 
MYCELIUM. 
Cultures of either conidia or ascospores sown in agar 
plates germinate quickly, andin 24 hours produce the con-. 
idial stage. In two or three days the perithecia are pro- 
duced. The colony is hyaline at first, but in a few hours 
begins to turn gray, and finally becomes black. The my- 
celium is coarsely granular, the filaments measuring 24 to 
8 in diameter. 
CONIDIA. 
The conidia are found on simple or branching, upright 
hyphae, both in simple moniliform chains and in terminal 
clusters, the latter resembling the form occurring with 
some species of Graphium (pl. 5, f. 3, 4,5). They 
are formed by the abstriction of the ends of the hyphae, 
and often fall together as fast as they mature, in rounded : 
