181 
l*AHT IV.] Rama Rao ; Host Plants of the Sandal Tree. 
{70) Psidium Guayuva — (Evergreen tree). — 1 found young root- 
lets of this plant more largely attected than bigger ones ; the 
haustoria on the former were small while on the latter they were 
much bigger ; in both penetration had been effected, but in young 
roots the woody tissues had been disorganized and the haustoria 
burrowed into the wood right up to the pith destroying the host’s 
tissues ; in the bigger roots the cells in contact with the sucker 
lobes had been dissolved. This appears to be a good nurse and 
l)eing a fruit tree would be profitable also on that score when asso- 
ciated with sandal. 
(//) Eucalyptus globulus — (Deciduous tree). — I found roots of 
this pretty largely attacked and the sandal haustoria large on big 
roots and medium-sized on smaller ones ; the haustoria had pene- 
trated the inner wood ; the larger haustoria were of white brown 
colour and flat, closely adhering to the host like limpets and were not 
woody or lignified. As this is a fast growing timber-yielding tree, 
its association with sandal would be very advantageous. Plate V 
is an illustration of an attacked root. 
SAMYnACE-ai. 
{72) Casearia tomentosa — (Deciduous tree). — A small root of 
this was covered with numerous sandal haustoria and scars of 
medium size ; the scars were deep and exposed the inner wood tc 
view ; this species appears to be an excellent host for sandal and is 
a desirable associate on account of its timber also. 
Cxjcurbitace^. 
{73) Cucurhita dioica — (Evergreen climbing herb). — I found 
roots of this species attacked by sandal ; the haustoria were small 
and the only scar seen exposed the inner wood to view. This 
appears io be a good nurse in the younger stages of sandal plants. 
Begoniace.r. 
{74) Begonia (garden) — (Evergreen herb). — Dr. Barber ex- 
amined sandal haustoria on the species ; not being a denizen of 
sandal tracts and being only an ornamental herb, it is not of import- 
ance as a host plant. 
