Polysiphonia nigrescens
44
Bishop specimens
0
Type specimens
1850
First collected
1992
Last collected
No recent record
Last seen alive in Hawaiʻi
Where Bishop collected it
7 mapped specimens. Localities of endangered species are shown approximately.
Two centuries of collecting
1850s1990s
The oldest Bishop specimen was collected in 1850 by Durant, C.F. (New York Bay and Harbor).
From the collection
