The ASU Natural History Collections are comprised of nine different collections that support the university's teaching, research and public outreach functions. They are supported by the School of Life Sciences. Our collections emphasize flora and fauna from the arid southwest of North America, especially Arizona and Sonora, Mexico. Collectively, our holdings rank among the largest collections of Sonoran desert biota in the world.
The ASU Lichen Herbarium (ASU) is among the ten largest collections of lichenized fungi in the US; it contains some 115,000 specimens. The collection has a particularly strong focus on the Greater Sonoran Desert Region [northwestern Mexico: Baja California, Baja California Sur, Sonora, western Chihuahua and northern Sinaloa; and southwestern USA, Arizona, southern California].
The Arizona State University Vascular Plant Herbarium (ASU) is the second largest in the Arid Southwest with over 300,000 specimens, including one of the best collections of Cactaceae in the world. We are particularly proud of our vouchers of chromosomal counts for thousands of taxa.