IN CEYLON. 
441 
Periodicity. 
Species. Buitenzorg (Treub). Peradeniya. 
Terminalia Catappa Leaves fall very irregu¬ 
larly, often twice a 
year 
Tectona grandis Almost evergreen 
Erythrina indica ... Leaves fall in July 
Undergoes defoliation 
and foliar renewal 
regularly twice per 
year, first from Janu¬ 
ary to February, and 
second from August 
to September (1900 
to 1904). 
Markedly deciduous. 
Leaves fall from 
January to March and 
the tree is perfectly 
leafless for about one 
week. 
Ficus religiosa 
Ficus inf ectoria . 
Ficus elastica 
Ficus altissima 
Leaves fall in January 
and February and new 
leaves appear in March 
and April. 
Leaves fall in March ... Yariable, but the leaves 
usually fall from De¬ 
cember to March. 
. Leaves fall in 
and April 
.. Leaves fall ir 
new leav 
April 
.. Leaves fall in March 
March Leaves fall during 
February and March. 
in April, Irregular ; leaves fall 
appear in from September to 
February. 
Irregular. Leaves fall 
during the dry weather 
from February to 
May. 
Hevea brasiliensis... Leaves fall in July .. 
The leaves usually fall 
in February, some 
a little earlier, and 
others later. Nearly 
every tree is in full 
new leaf in March. 
Lagerstrœmia flos- Leaves fall in Septem- Leaves usually fall in 
reginæ ber January to February 
and in March new 
leaves appear. 
Manihot G-laziovii... Leaves fall in August... Leaves usually fall 
during February and 
March and new leaves 
appear in April and 
May. 
Pithecolobium Sa- Leaves fall in February, Yariable. Usually old 
man March, and July leaves fall in January 
and February and 
new leaves appear in 
February and March. 
