Alchemilla vulcanica Cham. & Schltdl.

This herbarium specimen is a pressed and dried example of Alchemilla vulcanica, a lady's mantle species native to the volcanic highlands of Mexico, collected near Orizaba in 1828 by botanists Schiede and Deppe. Mounted on archival paper with a handwritten locality label, a calibrated scale bar, and a color-reference chart for photographic reproduction, it represents the foundational documentary practice of systematic botany. Such specimens — gathered, pressed, labeled, and deposited in institutional collections — constitute the physical evidence on which species descriptions and taxonomic names legally rest. This sheet is the kind of primary record that underpins both scientific nomenclature and the broader human impulse to classify, annotate, and archive the natural world.