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: 3 April 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, 2024-04-18).
Collection Statistics
  • 61,800 specimen records
  • 32,987 (53%) georeferenced
  • 59,724 (97%) with images (60,516 total images)
  • 49,423 (80%) identified to species
  • 52 families
  • 308 genera
  • 2,351 species
  • 2,483 total taxa (including subsp. and var.)
Extra Statistics
Taxon Distribution
Taxon Distribution
  • Acrostichum (103)
  • Adianthum (1)
  • Adiantopsis (45)
  • Adiantum (1712)
  • Ananthacorus (3)
  • Anogramma (30)
  • Anopteris (15)
  • Antrophyum (63)
  • Argyrochosma (1)
  • Aspidotis (42)
  • Aspleniopsis (1)
  • Bommeria (50)
  • Ceratopteris (1)
  • Cheilanthes (1479)
  • Cheiloplecton (7)
  • Coniogramme (22)
  • Cosentinia (1)
  • Craspedodictyum (1)
  • Cryptogramma (317)
  • Doryopteris (84)
  • Grammitis (2)
  • Gymnogramma (29)
  • Gymnogramme (67)
  • Gymnopteris (4)
  • Hecistopteris (4)
  • Hemionitis (125)
  • Hypolepis (1)
  • Jamesonia (28)
  • Litobrochia (1)
  • Llavea (16)
  • Lomaria (1)
  • Mildella (16)
  • Monogramma (4)
  • Notholaena (564)
  • Ochropteris (1)
  • Onychium (59)
  • Pellaea (1182)
  • Pentagramma (1)
  • Pityrogramma (329)
  • Polytaenium (16)
  • Psilogramme (9)
  • Pteridanetium (11)
  • Pteridella (2)
  • Pteris (723)
  • Scoliosorus (2)
  • Syngramma (9)
  • Taenitis (24)
  • Trachypteris (1)
  • Trismeria (21)
  • Vaginularia (3)
  • Vittaria (195)