Data quality assessment
The only systematic error found by the manual inspection was an
alignment failure in diaspores with sharply bent awns belonging from the
Poaceae family, which resulted in inaccurate length and width
measurements. To correct for this error, we edited images of Poaceae
species and erased the elongated appendage with the brush and clone
stamp tools in Adobe Photoshop, saved it as PNG. The images were
labelled with the same name as the original image, with the addition of
’_edit’ (e.g., ‘img_0261’ and ‘img_0261_edit’). Traits of edited
images were extracted with Traitor and merged with the dataset with the
addition of ‘elongated appendages’ on the ‘missing structures’ column.
Original records of species with bent appendages were deleted from the
dataset, while those of species with unbent appendages were kept.
4. Taxonomic data: Species names and family information were
using the functions WFO.match and WFO.one from the R packageWorldFlora (Kindt 2020). The last nomenclature verification was
carried out on September 16th, 2022.