GATES: SWAMP VEGETATION IN Hort SprRIN( 
GS AREAS. ] [PHIL. JoURN. Sci., IX, C, No. 6. 
Hot Water 
L 
BOTTOM ALGAE ASSOC, River Water 
SURFACE ALGAE ASSOC, Vallisneria Assoc 
| Lemna-Pistia Assoc 
Castalia-Nymphaea Assoc. 
Bacopa-Lippiea : 
Assoc, ~.. b 
i TYPHA BS 
bipgaonne Assoc. 
Fimbristylis spa- 
+ Z 
ae grossus 
thacea r 
Assoc, 
ASSOC. 
Assoc. 
PHRAGMLTES 
re Miliacea Lpomoea rep- | 
tans Assoc, | 
PANICUM REPENS 
ASSOC, 
SESBANIA ASSOC. 
! 
Acrostichum Assoc 
Erythrina-Barringtonia 
A ie Swamp Forest Assoc. 
PARANG ASSOC. 
Diagram showing the successions between the plant associations in the Tarlac hot springs 
swamp area, 
Laguna Province 
, Philippine Islands. 1914. Capital letters denote the important 
associations in this area, primary, (LLL! secondary, and......... suc- 
cessions which ordinarily take place, but are not present in this area 
assoc. read Bottom thermal assoc 
(In place of Bottom algae 
and for Surface algae assoc. read Surface thermal! assoc.) 
PLATE XIl. 
