508 
nidia in the Ceratocystts there is a pycnidia development, search 
was made for this structure in the pineapple cultures; but noth- 
ing of the sort has. appeared. It is, however, true that the pyc- | 
nidial development in the Ceratocystis was shy and not met with but 
a few times during the study of the sweetpotato black rot. There- 
fore realizing the great similarity between the microconidia in form 
and in method of production in the two genera and of the macro- 
conidia in their structures, but not in their origin, one is inclined 
to continue the search for a pycnidial form of fungus in the case 
of Chalara paradoxa. 
‘Notes upon Peach Root Galls—After a study of the root knot 
or gall of the peach, chiefly from the standpoint of possible reme- 
dies, for the past two seasons, it may be well to put on record the 
fact that a fungus similar to the one noted above upon the pine- 
apple is associated with the enlargements at the crown and else- 
where upon the roots of the peach. 
The microconidia are hyaline and 10-15 by 3-4 4, produced 
endogenously as for Chalara and Ceratocystis: The microconidia 
are olive-brown, oval 10-13 » and formed by ordinary fission, and 
in that feature agree with Cha/ara and not with Ceratocystis. In 
its habitat it agrees with the latter in that both are soil fungi, the 
ceratocystis, as stated in the proceeding note, feeding upon the roots 
of the sweetpotato, and this one is upon the roots of the peach. 
The fungus has been frequently met with upon crown and roots 
of seedling peaches while only ‘a few weeks old and before any 
galls had started, and also at the end of the season, when galled 
roots were examined closely, the fungus being upon the surface of 
- the knots and saseetion dos a dark color on the mnuiGitides of dark 
macroconidia.- 
It remains to demonstrate, if possible, the causal connection of 
the fungus with the formation of the galls. 
Natural Enemies of the Asparagus Rust—The season of 1896 — 
was the first one in which the genuine rust of the Asparagus 
(Puccinia Asparagi DC.) had been observed in this country out- 
side of California. Since last year the disease has widened its 
range greatly and has become so severe that ‘asparagus ewe 
have full cause for alarm. 
