112 BUTANICAL GAZETTE [ AUGUST 
good supply of nutriment, when a profuse vegetative growth 
takes place, the production of conidia is delayed. Transfers, 
however, were made to bean stems in order to determine its 
further growth characters, and to avoid the possibility of con- 
tamination from exposure to the air. As germination had not 
been observed it was impossible to say from what the colony 
had originated. 
On bean stems there was developed a rather compact white 
mycelial growth, and black fruiting bodies made their appeat- 
ance in connection with the Colletotrichum conidia. The former 
developed into perithecia containing paraphysate asci with 
single-celled, curved spores. These spores when sown produced 
conidia, but from the conidia the perfect stage has not yet been 
obtained. Further investigation will be necessary in connection 
with this species, and a further detailed description will be 
deferred to another paper. 
The colonies from both ascospores and conidia, in their uni- 
form growth, with the exception of a slightly open growth around 
the central point, resemble those described in connection with 
Gleosporium piperatum. 
CONCLUSIONS. 
I will sum up briefly.some of the more important results 
obtained in connection with this study: The group of fungi 
under discussion, commonly known as anthracnoses, 10 many 
cases present, in artificial cultures, distinct characters of growth 
for distinct species, which may be made of value in distinguish- 
ing species whose similarity in morphological structure in ss 
nection with their host often renders their systematic position 
uncertain. 
uate 
The artificial growth characters of a single species fluct ; 
ang 
within certain limits with varying conditions of temperature 
nutrient media, and certain characters which are prominent may 
of 
become obscured with age, so that to render the characters 
taxonomic value uniform growth conditions are essential. 
The formation of the so-called secondary spores © 
r buds a 
