TOMATO DISEASE IN GUERNSEY. 
21 
when mature by wind or rain, or artificially during the process 
of syringing or watering the plants. In structure the fruiting 
branches described above agree with a genus of fungi called 
Diplocladium (fig. 1), and will, in future, be called the Diplo- 
cladium stage of the Tomato fungus, which produces three forms 
of fruit at least. The Diplocladium stage usually lasts for about 
a week, at the end of which period the Tomato stem has become 
very much decayed, especially near the root, and is then usually 
Fig. 1. — Tomato Fungus — Diplocladium Stage : Superficial. 
studded with more or less effused, subglutinous patches, which 
are at first whitish in colour, becoming pale dingy orange at 
maturity. If a portion of this gelatinous mass be examined 
under the microscope, it is seen to consist of myriads of crescent- 
shaped spores, as shown in fig. 2 : these represent the conidia 
of the second or Fusarium stage of the fungus. 
Finally, the mycelium that has produced the Diplocladium 
and Fusarium stages of the fungus in succession at last bears 
numerous resting-spores (fig. 3), which tide the fungus over 
the winter, and until young Tomatos are again present, when 
