The UPR Herbarium is the center of the scientific activity of the Botanical Garden. The herbarium preserves approximately 40,000 plants specimens from the Flora of Puerto Rico. Our plant specimen collection includes Type specimens and historical collections from the early 20th Century. The herbarium is a training and research facility for students and scientists studying themes like taxonomy, systematics, evolution, biogeography, conservation, and etnobotany. Through workshops and talks the training extends to the community and citizens interested in science or simply nature. The UPR herbarium is a partner of local and international herbaria; it is in constant collaboration with local and US agencies dedicated to plant species conservation. Our collection is continually growing. Accordingly, we are evolving to make space for the future and to make our data available to the scientific community.