1921.| The Eighth Indian Science Congress. cl]xxxv 
in the Sosae of appearance and facies of at eappsosc plants. Sprin 
vege eta is probably most Bet gece of the summer brings tr orice 
pecies ne aspect ; autumn is temperate in ‘apetine sel ‘abhaeh 
Influence of Man on the Vegetation. 
e population ae s only about 64 per sq. m., but is concen- 
trated in the fertile valleys and on gen ntly slop ing mountain sides 
r u ei 
eut for fuel, fodder and thatching, for the most part severely grazed, and 
often burned over. Along trade routes inte ibet, exploitation is 
especially severe and irresp onsible. The accessible forests of 
tigate er P. excelsa, and rica deodara are exploited for timber, with 
yet little effort at replaceme 
Instances of syncarpy in ag ts indica, L., and some 
other tr ropical plants.—By P. 
Two interesting specimens of mango poh a syncarpy have 
recently come under my notice. One was t by Mr. 8. N. Roy from 
abna 
cord. Mention has been made in this Se of a few other 
tropical plants in whieh synearpy has been noticed by n 
A study of the floristics and ecology of Lucknow.—By 
S. K. MUKERSI. 
The present account is an attempt to give an idea of the flora and 
some interesting ecological observations of Lueknow and its suburbs. 
(1) General features and situation of Lucknow. 
(2) pre se climate and rain. oF 
) oe of plants—(ac sere rding to Engler’s system). 
(4) 8 _ ae wher 1 differ on Hooker and Duthie. 
(5) An account of se successto 
ason * 
(6) Boop observations on the following habitats :-— 
(i) C at Lake. 
(ii) ioe tract ata rsES Lal Gunj-. 
(iii) Gomti a spa bank ; 
(7) Variou «: Savannah formation” from 
face rene? ss othe jee o/ he Himala ayas. 
(8) Human influence egetation. 
The Dal Lake Seo : a’ study in biotic succession.— 
By 8. K. Mux 
rpose of this to trace the hydracch suc cession in 
from the As Ere i pe determine the cance climax for this han 
