Cakxe — Brown Hof of Citrus. 
31 
(4) . On 16ih June 2 oranges and 1 lemon infected -with myce- 
lium of P. hibernalis on potato dextrose agar from orange. 24tli 
one orange developed BroAvii Hot. The second orange vas lo* 
infected on 1st July. On 9tli July lemon developed Brovii Rot, 
and the second orange on 16th. 
(5) . On 27th June 2 oranges and 2 lemons infected Avitii myce- 
lium of P. Jiihcrnalis on potato dextrose agar isolated from lemon 
leaves the same month. On 7th July one orange and one lemon 
developed Brown Rot, the others moulds . 
(6) . On 29fh June 2 lemons infected with F .hibernalis culture 
on potato dextrose agar from lemon fruits. 9tli July both developed 
Brown Rot . 
(7) . On ^st July 1 orange infected with culture on potato 
dextrose agar from orange. T)evelo])ed Brown Rot on loth. 
(8) . On 2nd July 2 sound lemons were placed in contact with 
an affected lemon. On 13th one lemon developed Brown Rot. The 
other remained sound. 
(9) . On 2nd July Brown-rotted orange ihaced in water with 
2 oranges and 1 lemon, but not allowed to come in contact. Water 
removed on 7th. By 8th all a]>peared to develop BroAvn Rot, but 
this was not confirmed owing to contamination. 
(10). On 2nd July BroAvn-rotted oranges placed in water in 
contact with two oranges and two lemons. Water removed on 7th. 
8th apparent Brown Rot in all but not confirmed. 
(11) . On 2nd July BroAvn-rotted orange placed in contact in 
jar with one orange and tAvo lemons. 13th BroAvn Rot on all but 
confirmed by isolation only from orange as the lemon cultures be- 
came OA^ergroAvn Avith contaminations. 
(12) . On 16th July. Coiiidia from lemon leaf tissue on 
potato dextrose agar placed in AA-ater in glass cells attached to two 
oranges and tAvo lemons Avitli plastieene. 3rd August one lemon 
deA^eloj)ed BroAvii Rot. Others remained sound. 
(13) . On 17th July. Orange and lemon leaf fragments 
placed in Avater Avitli conidia from a culture of lemon tissue on 
potato dextrose agar. 22nd BroAvn Rot lesions on all. 
(14) . On 21th July. One lemon infected Avith tissue from 
lemon Avith BroAA'ix Rot. 31st Developed BroAvn Rot. 
In all eases except Avhere stated Fhytoyhthora hibernalis Avas 
identified by culture on potato dextrose agar. 
