A PARASITIC BOTRYTIS ON PEPPER AND LETTUCE. 465 
The sclerotia germinate in the fall or late spring in one of 
two ways; either producing conidiophores from the swollen 
branches of the hyphae or from the stromatic tissue, which 
is formed as a sort of pseudo-parenchyma on the surface of 
the sclerotia. 
The production of apothecia from sclerotia Istvanffi found 
to take place anywhere on the surface, from two to six de- 
veloping from a single one. The apothecia arise by the 
breaking down of the cortical layer and the pushing out of 
the swollen hyphae in parallel tubes. At this point the 
hyphae grow out and branch, forming the cup of the apothe- 
cium. The process takes place, in some cultures, in less than 
nine days after the sclerotia are placed in moist sand. Re- 
peated infection experiments by the above author with 
ascospores resulted in failure, although they germinated in 
water. However, by using bits of the apothecia he was suc- 
cessful even on the leaves and fruit of the grape. 
The origin and functions of the organs of attachment are 
discussed at length. The author finds that they serve several 
purposes, such as attaching the fungus to the host, breaking 
the cuticle of the fruit and stem and forming, together with 
the mycelium, tufts which are able to live over the winter. 
A disease of hemp, similar to that of lettuce, has been re- 
ported from Europe on several occasions. The infected stems 
are permeated with mycelium, which soon causes the entire 
collapse of the plant. Behrens (5) found both Botrytis 
cinerea and S. Libertiana present on the above host, and at 
first believed them to be stages of the same fungus. However, 
he subsequently concluded that the two forms were probably 
distinct. Tichomiroff (58) observed a disease of hemp 
having the same symptoms which he attributed to a new 
Sclerotinia, called by him S. Kaufmaniana. De Bary was 
able to infect the hemp plants with the ascospores of S. 
Iibertiana, and decided that the disease described by 
Tichomiroff was nothing more than 8S. Libertiana. Later 
Hazlinsky (25),in Hungary, and Hiltner (26), in Germany, 
noticed a disease of the hemp identical with the above. In 
