Data compiled for: Bald Cypress Knees, Taxodium distichum (Cupressaceae): An Anatomical Study, with Functional Implications (manuscript)
Description
Data compiled for: Bald Cypress Knees, Taxodium distichum (Cupressaceae): An Anatomical Study, with Functional Implications (manuscript) George K. Rogers, Palm Beach State College (retired), Palm Beach Gardens, Florida, USA The tables show anatomical measurements compiled during a study on, “Bald Cypress Knees, Taxodium distichum (Cupressaceae): An Anatomical Study, with Functional Implications” manuscript in preparation for intended publication. The field sites are in the vicinity of Jupiter, Palm Beach County, Florida autumn-early winter 2020. The knee designated “purchased” was one of unknown origin sold for ornamental purposes. With the exceptions of the Biopsy Punch Data table, measurements are in microns (μ). The abbreviation PEG refers to embedding in polyethylene glycol for microtome sectioning. In the Biopsy Punch Data table, the measurements proceed downward on the knees from the tip to 25% down from the tip, 50%, and 75%, and the base. All of the measurements above the base are from exposed knee portions. All measurements from the base were submerged. In the Biopsy Punch Data table, the # layers columns give the numbers of layers of still-attached outer bark counted from outside in, i.e., the number of layers the biopsy punch penetrated. The thickness measurements in mm show thickness for inner and outer bark. For the latter, because there were often multiple layers, thickness for each layer is given, and separate columns show those thicknesses combined into a total for each sample height on the knees. The columns at the right side of the table are for non-knee roots.