The Academy of Natural Sciences of Drexel University (PH)

The herbarium of the Academy of Natural Sciences (PH) is the oldest institutional herbarium in the United States. It is a national resource for material from 1750-1850. The diatom herbarium (ANSP) is managed separately.
Collection Manager: Chelsea Smith, crs344@drexel.edu
Collection Type: Preserved Specimens
Management: Data snapshot of local collection database
Last Update: 1 March 2024
Digital Metadata: EML File
Usage Rights: CC BY (Attribution)
Cite this collection:
The Academy of Natural Sciences of Drexel University. Occurrence dataset (ID: d71cc7dc-d5f9-488b-888f-530a04263062) accessed via the PteridoPortal Portal, /portal, 2024-03-29).
Collection Statistics
  • 61,800 specimen records
  • 32,975 (53%) georeferenced
  • 59,725 (97%) with images (60,496 total images)
  • 49,395 (80%) identified to species
  • 51 families
  • 308 genera
  • 2,335 species
  • 2,467 total taxa (including subsp. and var.)
Extra Statistics
Taxon Distribution
Taxon Distribution
  • Acrostichum (3)
  • Arachniodes (22)
  • Arthrobotrys (1)
  • Aspidium (19)
  • Bolbitis (56)
  • Ctenitis (78)
  • Cyclodium (5)
  • Cyrtomium (47)
  • Cystopteris (1)
  • Diacalpe (4)
  • Didymochlaena (28)
  • Dryopsis (1)
  • Dryopteris (6686)
  • Egenolfia (6)
  • Elaphoglossum (311)
  • Hypoderris (2)
  • Lastrea (1)
  • Lastreopsis (24)
  • Leptochilus (1)
  • Leptorumohra (2)
  • Lomagramma (2)
  • Maxonia (5)
  • Megalastrum (19)
  • Microstaphyla (3)
  • Nephrodium (27)
  • Nothoperanema (1)
  • Olfersia (18)
  • Peltapteris (31)
  • Peranema (4)
  • Phanerophlebia (36)
  • Polybotrya (55)
  • Polypodium (1)
  • Polystichopsis (2)
  • Polystichum (2224)
  • Rhipidopteris (1)
  • Rumohra (23)
  • Stigmatopteris (4)
  • Teratophyllum (9)
  • Thelypteris (2)