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1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
Phormidium chalybeum
BISH 589144 · Doty, M.S., 1965
Hawaiʻi Island
Phormidium chalybeum
BISH 552546 · Newhouse, J.W., 1954
Pohnpei, Micronesia
Phormidium chalybeum
BISH 552547 · Fosberg, F.R., 1952
Kwajalein Atoll, Marshall Islands
Phormidium chalybeum
BISH 552550 · Soriano, J.D., 1949
Luzon, Philippines
Phormidium chalybeum
BISH 552552 · Patrick, R., 1947
Mexico
Phormidium chalybeum
BISH 552553 · Newhouse, J.W., 1954
Venezuela
Phormidium chalybeum
BISH 589140 · Long, C.R., 1964
Mokumanamana
Phormidium chalybeum
BISH 589142 · Lamberton, A.R.H., 1952
Kauaʻi
Phormidium chalybeum
BISH 687631 · Newhouse, J.W., 1952
Kauaʻi