171 
Part IV.] Rama Rao : Host Plants of the SanHal Tree. 
toria on them. Affected roots of this species have to be examined 
to ascertain to what extent it may prove useful as a nurse. 
(77) Greu'ia sp. (Tamil — Fannipuduhan) — Deciduous shrub. — 
Its roots are largely attacked, numerous scars and haustoria being 
found on the main as well as the side roots and rootlets ; the haus- 
toria are medium sized and whitish-brown when dry, with a thin 
and broad base closely adhering to the surface of the host and the 
central y)ortion flattened on two sides along the axis of the host ; the 
scars are deep and expose the host’s wood to view ; the haustoria 
are not lignifled. This Grewia appears to love moist and deep 
soils and to be a good nurse for the sandal in such localities ; its 
wood is pretty hard and useful for small timber. 
{18) Grewia Inrsuta — (Deciduous shrub). — -j Attacked roots of 
{19) Gcni'ia fili{v folia — (Deciduous tree). — /these plants were 
not examined by me, but Dr. Barber examined sandal haustoria on 
their roots and appears to have found them successfully penetrating 
to the woodv cylinder of the hosts. Perhaps they are as good nurses 
as Fannipudvhan and yield better timber; affected roots of both 
species have to be examined in the field to ascertain their value as 
nurse plants for sandalwood. 
Gee.iniaceje. 
{29) Arerrhoa Cararnhola — (Deciduous tree). — Roots of this tree 
were found affected by sandal roots in a garden near the Lalbagh at 
Bangalore and bore living haustoria of a whitish-brown colour and 
of medium size; they penetrate the woody cylinder of the host as 
seen in the scars on the ho.sts ; the .sandal seems to prey on this 
species only to a moderate extent ; being a fruit tree its association 
with sandal might be found doubly profitable. 
Rxjtace.e. 
{21) Dimonia acidissivia — (Semi-evergreen tree).' — This is very 
extensively attacked and the sandal haustoria on one of the roots 
examined were pretty large, being more than | inch long and f inch 
broad with a flat base closely adhering to the surface of the host 
and the central portion rai.sed ; the haustoria had penetrated to the 
woody cylinder as seen by the exposed wood in the scars of withered 
ones on the host. This appears to be a good nurse and yields fairly 
