Poster
Systematics
Re-evaluating Sabal louisiana: Is the absence of an aboveground stem enough evidence to justify splitting two growth forms into different species?
Presenting Author
keily peralta
Description
Sabal minor is a dwarf palmetto commonly found within the southeastern United States and it is described as being acaulescent. Along the Gulf Coast of the United States (most commonly in Louisiana), botanist have observed morphological variation of the stem, whereby S. minor can be acaulescent as well as caulescent. Historically, botanists have considered caulescent S. minor to be a distinct species from acaulescent S. minor known as Sabal louisiana. However, LH Bailey combined both the caulescent and acaulescent into one species, S. minor s.l. Nevertheless, the geographically restricted morphological variation of stem type within S. minor warrents taxonomic re-evaluation in light of recent population genetic sequencing efforts.