Western Illinois University, ​R. M. Myers Herbarium (MWI)

The R.M. Myers Herbarium contains more than 75,000 specimens, of which most are from western Illinois or southeastern Iowa. We hold a major collection of moss specimens from western Illinois, as well as a set of Opuntia fragilis specimens that document most areas where it grows in the midwest.

Contacts: Ranessa Cooper, RL-Cooper@wiu.edu
Collection Type: Preserved Specimens
Management: Live Data managed directly within data portal
Global Unique Identifier: 5f887025-5ee0-453e-b25b-360c1f5e870a
Digital Metadata: EML File
Usage Rights: CC BY (Attribution)
Rights Holder: Western Illinois University
Collection Statistics
  • 42,498 specimen records
  • 4,037 (9%) georeferenced
  • 42,226 (99%) identified to species
  • 300 families
  • 2,002 genera
  • 6,234 species
  • 7,151 total taxa (including subsp. and var.)
Extra Statistics
Taxon Distribution
Taxon Distribution
  • Achnatherum (18)
  • Aegilops (14)
  • Agropyron (10)
  • Agrostis (121)
  • Aira (7)
  • Alopecurus (49)
  • Ammophila (3)
  • Andropogon (80)
  • Anthephora (1)
  • Anthoxanthum (3)
  • Apera (5)
  • Aristida (71)
  • Arrhenatherum (2)
  • Arundinaria (17)
  • Arundo (2)
  • Avena (13)
  • Axonopus (3)
  • Bambusa (2)
  • Beckmannia (7)
  • Blepharoneuron (4)
  • Bothriochloa (12)
  • Bouteloua (36)
  • Brachyelytrum (10)
  • Brachypodium (1)
  • Briza (4)
  • Bromus (238)
  • Buchloe (8)
  • Calamagrostis (35)
  • Calamovilfa (3)
  • Catabrosa (2)
  • Cenchrus (22)
  • Chasmanthium (16)
  • Chloris (13)
  • Chusquea (2)
  • Cinna (29)
  • Coix (3)
  • Cortaderia (1)
  • Corynephorus (3)
  • Crypsis (1)
  • Cynodon (9)
  • Dactylis (47)
  • Dactyloctenium (5)
  • Danthonia (42)
  • Deschampsia (15)
  • Desmazeria (1)
  • Diarrhena (11)
  • Dichanthelium (229)
  • Digitaria (76)
  • Distichlis (7)
  • Echinochloa (118)
  • Eleusine (23)
  • Elymus (258)
  • Eragrostis (164)
  • Eriochloa (8)
  • Eustachys (3)
  • Festuca (74)
  • Gastridium (1)
  • Glyceria (89)
  • Helictotrichon (1)
  • Hesperostipa (16)
  • Hierochloe (6)
  • Hilaria (1)
  • Holcus (5)
  • Hordelymus (1)
  • Hordeum (69)
  • Hymenachne (2)
  • Ichnanthus (3)
  • Imperata (1)
  • Koeleria (26)
  • Lagurus (1)
  • Lamarckia (1)
  • Lasiacis (2)
  • Leersia (104)
  • Leptochloa (32)
  • Leucopoa (3)
  • Leymus (5)
  • Lolium (23)
  • Luziola (1)
  • Melica (14)
  • Melinis (5)
  • Milium (1)
  • Miscanthus (9)
  • Molinia (1)
  • Monanthochloe (1)
  • Muhlenbergia (150)
  • Nardus (2)
  • Nassella (1)
  • Olyra (1)
  • Orcuttia (3)
  • Oryza (4)
  • Oryzopsis (2)
  • Panicum (174)
  • Pascopyrum (6)
  • Paspalidium (1)
  • Paspalum (76)
  • Pennisetum (40)
  • Phalaris (62)
  • Phanopyrum (1)
  • Phippsia (1)
  • Phleum (51)
  • Phragmites (28)
  • Piptatherum (3)
  • Piptochaetium (1)
  • Pleuraphis (2)
  • Pleuropogon (1)
  • Poa (208)
  • Polypogon (2)
  • Pseudoroegneria (3)
  • Rottboellia (1)
  • Saccharum (7)
  • Schedonnardus (4)
  • Schedonorus (29)
  • Schizachne (1)
  • Schizachyrium (37)
  • Sclerochloa (1)
  • Scleropogon (1)
  • Scribneria (2)
  • Secale (7)
  • Sesleria (6)
  • Setaria (106)
  • Sorghastrum (49)
  • Sorghum (37)
  • Spartina (29)
  • Sphenopholis (52)
  • Sporobolus (112)
  • Steinchisma (3)
  • Stenotaphrum (1)
  • Stipa (4)
  • Thinopyrum (3)
  • Torreyochloa (4)
  • Tridens (34)
  • Triplasis (10)
  • Tripsacum (11)
  • Trisetum (8)
  • Triticum (14)
  • Uniola (2)
  • Urochloa (8)
  • Vetiveria (2)
  • Vulpia (19)
  • Zea (9)
  • Zeugites (1)
  • Zizania (3)