nities, produce vegetational maps, and assess relationships between communi- 
ties. By comparing results with those from Levy (1976), the development and 
change in importance of delimited vegetative communities over a span of 6 to 
7 years since the construction of the FRF can be assessed. 
II. PROCEDURE 
alee Floristics. 
Plant collections were made frequently throughout the period May 
through December 1981. Diagnostically mature specimens were collected in 
duplicate, identified, mounted, and labeled (Radford, Ahles, and Bell, 
1968). Labeling information included the collection location, date, common 
associated species, and a brief habitat description. The plant collections 
have been deposited at CERC. 
2. Vegetational Studies. 
The objectives of this study were to (a) delimit and characterize the 
number and diversity of the plant communities that occurred in the study 
area, (b) determine various phytosociological parameters of these 
communities through randomized sampling procedures and seasonally sample 
their standing crop, (c) produce an accurate vegetational map of the study 
area, (d) characterize the relationships between the delimited communities, 
(e) relocate and map the representative series of permanent quadrats 
established by Levy (1976), and (f) determine and evaluate any changes which 
might have occurred since Levy's (1976) original study. 
a. Plant Community Identifications. After an intensive review of 
previous work on the study site (Levy, 1976), the study area was traversed 
extensively to determine its vegetational diversity. An east-west base line 
was set up, with a transit and stadia rod, along the southern boundary of 
the study area. Nine 820-meter-long (approximately 2,700-foot) north-south 
transects were established from this base line at 9l-meter (300-foot) inter- 
vals and traversed. Vegetational descriptions were made along these 
transects, with each vegetation type tested for homogeneity using the chi-~ 
Square statistic (Curtis and McIntosh, 1951; Sokal and Rohlf, 1969). Twelve 
distinct community types were initially defined; as seasonal plant growth 
progressed, two additional community types were recognized and added. 
b. Community Sampling. The subjective community identifications 
verified observations made before the initiation of this investigation. Three 
