146 REPORT OF THE DEPARTMENT OF BOTANY OF THE 
the symptoms of Sporotrichum bud-rot, the exposed petal tips being 
normal while the interior parts were decayed and moldy. The 
strange thing about it was that the decayed petal claws were de- 
cidedly reddish although the blades were white. Neither Sporotri- 
chum nor mites were found in this bud. Instead, there was an 
abundant growth of a species of Fusarium. 
It is noteworthy that in three states —— New York, Illinois and 
Nebraska— Lawson is the variety most affected. This variety 
appears to be particularly susceptible. Two other varieties found 
to be especially susceptible in New York are Enchantress and Bradt. 
It is interesting to note the relationship of these three susceptible 
varieties. Enchantress is a seedling of Bradt crossed with Lawson.§ 
It was originated by Peter Fisher, Ellis, Mass., in 1899. 
Now that we are able to differentiate it from other bud troubles 
of the carnation it seems probable that the Sporotrichum disease 
will be found in a rather common but not an especially important 
one. In floricultural literature there are numerous references to bud 
troubles of the carnation. Sometimes the description given answers, 
in a general way, for the disease under consideration. For example, 
a correspondent of the American Florist’ writes as follows: “ The 
buds form and expand but never open full, only about half, and then 
dry up and wilt.” Another correspondent of the same journal? 
writes: “ They [the plants] make a clean healthy growth and pro- 
duce good stems but fully three-fifths of the flowers go to sleep 
when about half developed.” It is quite possible that these were 
cases of Sporotrichum bud-rot. 
The ‘‘abnormal carnation flowers” described by Arthur? is an 
entirely different trouble as is also the Botrytis disease mentioned 
by Atkinson.1° The hard dry “petrified buds” described by Kin- 
ney™ are likewise to be ascribed to other causes, probably. How- 
ever, the Sporotrichum disease sometimes takes that form. 
Owing to the fact that there are several different bud. troubles 
of the carnation which might be appropriately .called bud-rot this 

°Ward, Charles Willis. The American carnation: How to grow it. p. 
266. A. T. De La Mare Printing and Publishing Co., New York. 1903. 
*Amer., Florist, 12: 514..2 Ja. 1807. 
* Amer, Flarist,. 19:'G10. 20 EF; Tao. 
® Arthur, J. C. Abnormal carnation flowers. Florists’ Ex., 8: 167. Illus. 
on p. 197. 
” Atkinson, Geo. F. Carnation diseases. Amer. Florist, 8: 728. 23 F. 
1893. 
* Kinney, Li. Fo Ri le ota Rot ters1500- 200 210) 
