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A CENSUS OF THE INDIAN POLYGONUMS. 
O Flowers pedicels long, exserted 
well beyond the stipules , P. plebejum 
VAR. effusa. 
O O Flowers sessile or pedicels quite 
short and very little if at all 
exserted beyond the stipules 
A Stipules many-nerved 
Nut polished, smooth P. plebejum 
^ VAR. polyneura. 
Nut dull, striolate • P. aviculare. 
A 4 Stipules nerveless or 
showing oiily one or 
two nerves 
; ^ II Leaf lamina 
broadly elliptic, 
rather large, 
1-1*5 cm. long 
by *5-1 cm. 
broad, shortly 
petioled . P. cognatum. 
III! Lamina orbicular 
or oblong, very 
small, usually 
not more than 4 
mm. in diame- 
ter, sessile 
Branches very 
n u m e r ous ; 
; , ^ leaves orbi- 
cular, apicu- 
late with a 
distinct me- 
. ^ dian ridge ; 
stipules very 
’ / , , - crinite and 
woolly look- 
: ' ing . P. plebejum 
VAR. Griffithii. 
Branches not 
very numer- 
ous ; leaves 
oblong ; sti- 
