108 BOTANICAL GAZETTE [ AUGUST 
the open portion surrounding the center, but the colonies resem- 
ble those of the orange anthracnose (Col. glaosporoides). 
On bean stems the fungus develops a pure white mycelium 
which in rich nutrient media covers the substratum with a close, 
white felt. In some of the tubes black perithecia-like bodies 
made their appearance on the stems, while in others they were 
mingled with pink acervuli, and again the acervuli appeared 
almost exclusively. On bean stems, to which transfers were 
made February 17, perithecia containing asci were found on 
March 21. In cultures two months old many of the perithecia- 
like bodies retain their white protoplasmic contents, the cessa- 
tionof further development probably being due to the exhaustion 
of the nutrient media. The perithecia measure from 180-2804 
in diameter, are flask-shaped, membranaceous, and _ cespitose. : 
Asci aparaphysate, clavate, sessile, truncate or obtuse when 
mature, measuring 65-70 in length, eight-spored. Sporidia 
hyaline, single-celled, elliptical, curved, measuring 15-20 X 3# 
From the germinated ascospores the conidia were again obtained. 
The first results were verified by cultures made later from differ- 
ent material. 
The ascigerous stage, as may be seen by comparing the : 
description and illustrations, bears a close resemblance to the 
two previous forms. The characters of the colonies show 4 
It is possible that the perithecial stage obtained in artificial 
cultures is identical with that found in connection with the Gl@- 
osporium on the leaf. The difference in size and the presence 
of a stroma might be accounted for by the artificial conditions | 
of growth. Jak 
Gnomoniopsis rubicola Stoneman (figs. 29-30, 105-7 09) + _ 
Colletotrichum rubicolum E.. & E.; on red raspberry ( Rubus ae 
£osus). 7 
In December 1895 some anthracnoses were kindly fo 
warded me by Mr. J. B. Ellis, among them a new species, at 
