104 BOTANICAL GAZETTE [ AUGUST 
ten days after inoculation. The perithecia become mature 
when the cultures have attained an age of three or four weeks. 
Again in November 1895 both stems and leaves were 
received from Kansas affected with G. cingulatum Atk. On the 
leaves the fungus appears in light brown arid spots, oval or 
fusoid, bordering the midribs. Fruiting pustules are formed on 
both surfaces of the leaf, though more abundantly on the upper 
surface. From cultures obtained from these conidia, ascospores 
were again obtained. * The two forms have been obtained 
repeatedly in subsequent transfers made to preserve the species 
in artificial cultures, and definite connection of the two stages 
cannot be doubted. While the pleomorphic course of develop- 
ment can readily be traced, it cannot be said that one stage is 
necessarily intercalated between successive crops of the other. 
Gnomoniopsis piperata Stoneman (figs. 98—rog); Glaosporium 
piperatum E. & E.; on pepper (Capsicum annuum L.). , 
In October 1896, peppers affected with Glwosporium were 
received from Professor S. M. Tracy of the Mississippi Agricul- 
tural Experiment Station. The affected areas appeared as cit 
cular or oval spots in which pale yellowish fruiting pustules had 
ruptured the epidermis in elongated, irregular fissures, which 
were closely associated so as to be confluent at the older affected 
portions; around the margin they were arranged concentrically 
The conidia were elliptical to oval, measuring 12-23 X 5-OM- A 
dilution culture of the conidia was made October 10. The col 
idia germinated in the ordinary manner within twelve hours: 
subsequent growth was slow and lest the colonies should become 
contaminated transfers were made to bean stems on October 23: 
although at this late date no conidia could be found in the eur 
tures. The colonies showed few positive characters, the mycelium 
growing almost uniformly from a small light colored central point 
with the exception of a less abundant growth surrounding te ; 
center about 4-5™" in diameter. On bean stems the fungus devel” a 
oped quite an abundant grayish mycelium, standing out in a i | 
culent mass. On the surface of the infusion it is of a lighter colt 
and is usually more compact than on the stems, although ae 
oes 
