76 BOTANICAL GAZETTE [auGusT 
slightly varying conditions of the infusion of bean stems, these 
characters were found to vary and were not regarded as of so 
much importance as the characters developed in Petri dishes. 
Notwithstanding the fact that this fungus has been found to 
grow on the apple and quince in laboratory inoculations, the 
characters manifested in artificial cultures are sufficiently dis- 
tinct, so that it seems to merit a distinct specific name. 
Another disease appearing on maturing tomatoes causes te 
fruit to crack, These fissures are filled with an abundant white 
mycelial growth. The conidia are elliptical, oval, or fusoid, and 
resemble those of G. phomoides. On making a dilution culture 
it was found that the conidia were borne in chains, and proved 
to be the Ordium lactis. 
GLa@OsPORIUM VENETUM Speg. (figs. 8, 42-46); on Rubus sp. 
The raspberry is a most generous host for the anthracnoses, 
and the different genera and species parasitic upon it have 
formed an interesting group for study. 
The most destructive of these, G. venetum Speg., has already 
received considerable attention from economic mycologists, and 
a brief description of the external characters of this species will 
suffice. The disease is said to attack all parts of the plant, 
even the fruit, although so far as the observations of the writer 
extend, it has been confined to the stems and petioles of both 
feral and cultivated plants. 
It appears first in small purple spots, the oldest ones ‘being 
found near the base of the plant. As the spots increase in siz® 
they become grayish-white at the center, where the tissue of the 
host frequently becomes ruptured. Encircling the spot may 2 
usually be seen an elevated purple border. The disease a 
permeates deeply into the tissue of the plant, but is locate¢ — 
chiefly in the cambium layer, where the cells become shrunken 
and brown. . : 
The conidia form amber colored masses on these spots, and 
upon examination may be distinguished easily from the gia 
species on the raspberry by their small size. They are oblong 
