4 
CLOVE&. 
top of the root-stem and crown. The tissues above this and up to the 
ends of the leaves are disorganised.” 
Anguillulidje. 
1, Tylenchus obtusus ; 2, Aphelenchus avence; 3, Plectus granulosus (of Bastian) ^ 
all enormously magnified. 
Some of these specimens I sent, by kind permission, to Dr. J. 
G. de Man, and also to Dr. Kitzema Bos; and, on April 25th, 
Dr. de Man replied that he had examined the plants with the following 
results, to which I particularly desire to draw attention :— 
“ The Clover plants that you received from Mr. Whitehead, of 
Barming House, near Maidstone, Kent, were indeed diseased, and 
Tylenchus devastatrix ought to be regarded in this case as the cause of the 
disease. I found the interior of one stem decayed and containing a 
number of living specimens of T. devastatrix, both male and female, 
young individuals, and innumerable eggs. I have studied some 
specimens, and I have taken exact dimensions of them. So I found 
that both the male and female attain to a size of 1*5 mm. ; the tail 
measures in both l-15th to l-16th of the whole length ; the ‘ oesophagus ’ 
measures l-7th to l-6th of the whole length; and the * spear’ in the 
head has a length of 0*018 mm. All these dimensions perfectly agree 
with the original description of Kuhn, so that these specimens 
positively are representatives of devastatrix. 
“ In two stems I found again the fungus spores, on which I have 
already written to you. The occurrence of the fungus in this case 
may be either independent of the Tylenchus, or perhaps the fungus 
attacks the plants after having been infested by Eelworms. I cannot 
decide this question. 
