22 FLORIDA GEOLOGICAL SURVEY-NINTH ANNUAL REPORT. 
The bald cypress is now found from southern Delaware to 
eastern Texas in the Coastal Plain and its Pleistocene range was 
somewhat more extensive. In Florida it is found nearly through¬ 
out the State in swamps and low stream valleys. At Vero it is not 
known in the immediate vicinity of the coast, but there are extensive 
swamps about 12 miles west of the town, which are, however, sev¬ 
eral miles beyond the drainage basin of Van Valkenburg’s Creek. 
It has been recorded from Dade County by FTarper. 
ANGIOSPERMAE 
MONOCOTYLEDONAE. 
FAMILY CYPERACEAE. 
GENUS CAREX LINN. 
CAREX SP. SEDGE. 
Two capitate clusters of the perigynia of some species of Carex 
were found fossil at Vero. It is not possible to identify them as to 
species, but the generic reference is positive. Various existing 
species of Carex are. found at Vero and throughout Florida. 
FAMILY ARACEAE. 
GENUS PISTIA LINN. 
PISTIA' SPATHULATA MICHX. WATER LETTUCE. 
A characteristic leaf of this species was found fossil at Vero. 
The water lettuce occurs as a free floating plant in still water or slow 
moving streams throughout the tropics. I11 the United States it 
occurs sporadically from Florida to Texas. It is recorded from the 
Lake region of the central peninsula and from Lake Okeechobee, 
but I did not see it in the Vero region. 
FAMILY ARECACEAE v 
GENUS SERENOA HOOKER F. 
SERENOA SERRULATA (MICHX.) HOOKER. SAW PALMETTO. 
The fossil remains at Vero comprise 3 leaf bases, fragments' 
of the serrated petioles and several stones, all characteristic and 
readily determinable. 
