Physematium obtusum
blunt-lobed woodsia
4
Bishop specimens
0
Type specimens
1876
First collected
1957
Last collected
2026
Last seen alive
Two centuries of collecting
The oldest Bishop specimen was collected in 1876 by Spence, Mrs. E.J. (Springfield, Ohio). The Museum last collected it in 1957; iNaturalist observers have seen it in the wild as recently as October 24, 2026.
From the collection
Alive today
6,358 research-grade iNaturalist sightings in the wild since 2000. Most recent first.
2026-10-24
United States
(c) atricaudatuswho, some rights reserved (CC BY-NC)
2026-10-23
Broken Arrow, OK, US
(c) mprull20, some rights reserved (CC BY-NC)
2026-10-23
Broken Arrow, OK, US
(c) katenorrid, some rights reserved (CC BY-NC)
2026-10-21
Sand Springs, OK, US
(c) juliaaangeline, some rights reserved (CC BY-NC)
2026-10-21
State Route 51, Cobden, IL, US
(c) JMWyant, some rights reserved (CC BY-NC)
2026-10-17
Greene County, OH, USA
(c) Alex Uematsu, some rights reserved (CC BY-NC)
2026-10-17
West Siloam Springs, OK 74338, USA
(c) Andrew Mitchell, some rights reserved (CC BY-NC)
2026-10-15
Texas, US
(c) meganphillipslowery, some rights reserved (CC BY-NC)