Date of Award

8-2024

Degree Type

Masters Thesis

Degree Name

Master of Science (MS)

School

Biological, Environmental, and Earth Sciences

Committee Chair

Dr. Mac H. Alford

Committee Chair School

Biological, Environmental, and Earth Sciences

Committee Member 2

Dr. Micheal A. Davis

Committee Member 2 School

Biological, Environmental, and Earth Sciences

Committee Member 3

Dr. M. Wayne Morris

Abstract

Mississippi is one of the least botanically surveyed states in the southeastern United States. A floristic survey of Marion County, Mississippi, was undertaken from August 2021 through August 2024 to document and better understand the vascular flora that comprises Mississippi. Marion County is located in southern Mississippi within the Southeastern Plains physiographic region, characterized by irregular and dissected plains with acidic to circumneutral sandy-clay soils. One major river system occurs in the county, the Pearl River basin, which bisects the county from north to south. In total, 168 families, 542 genera, and 1,274 vascular plant species and infraspecific taxa were recorded. Four hundred ninety-eight (498) of these species were new county records, and 63 of these new county records were species of special concern by the Mississippi Natural Heritage Program. Overall, 109 state-ranked species and 134 globally-ranked species were documented in the vascular flora of Marion County, Mississippi.

Available for download on Thursday, July 11, 2030

Share

COinS