While the Academy has reopened the public floor, the research collections, labs and offices remain closed to visitors until further notice. Please check back here for updates. For additional inquiries, contact the collections manager at the email listed below.
The California Academy of Sciences' herbarium is the largest collection of vascular plants in the western U.S. and the sixth-largest collection in the country. The CAS collection includes ~2.3 million plant specimens with almost 12,000 types. Over 95% of the specimens are vascular seed plants; the remainder are ferns and a growing collection of bryophytes at ~150,000 specimens.