212 A NEW GINGER DISEASE IN GODAVARI DISTRICT 
septum in the centre. Sometimes the top-cell of a seta produces a hyaline 
hypha which bears a cluster of spores at its end. 
A comparative study of different characters of Vermicularia on ginger, 
turmeric and chillies. 
Crop Spore pustules — Sete Spores 
Ginger se -- | 50 to 140 » dia. | 875 to 168 y 17-24 X 34 pp 
| 
Chillies 5c -- | 70 to 120 p ,, 70 to 145 y 17-28 xX 3-4 » 
Turmeric ae -» | 35 to 160%, ., | 56 to 102 19-27 x 3-5 po 
It can be seen from the above tabular statement that there is a good deal 
of similarity among the ginger, chillies and turmeric Vermicularia in point of 
spore measurements. But in the measurement of spore pustules and in the. 
formation of chlamydospores there is difference. Observing the morphological 
similarity of the spores of ginger Vermicularia to Vermicularia on chillies and 
turmeric upon which the author is now working, several cross-inoculations 
were carried out, but with negative results. Hence the name Vermicularia 
Zingiberee Dov. sp. 18 suggested. 
Isolation of the fungus in culture. 
Tke fungus was brought into culture. The materials for getting this 
into culture were taken directly from the diseased portion of the plants. Bits 
of leaves showing spore formation were cut out with a pair of sterile scissors 
and put in melted agar tubes and transferred by the ordinary poured plate 
method to Petri dishes. The following day the platings were examined and 
single germinating spores were picked out by sterile platinum scoop and 
transferred to French bean and oat agar tubes. It was found that, for growth 
and sporulation, French bean agar furnished an excellent medium. Conse- 
quently, this was used for cultural work. The fungus grew very vigorously in 
French bean and oat juice agar. In 4 or 5 days dark-coloured pyenidia were 
formed on the surface of the agar slopes. Small, light rose-coloured droplets 
of thick glistening sticky fluid were seen on the surface. This was found to 
consist of a mass of spores. 
