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Calothrix in life
In life — photographed by an iNaturalist observer, not this specimen. (c) licensed media from BioImages DwCA without owner, some rights reserved (CC BY-NC-SA)
BISH 550442Botany

Calothrix

As recorded: Calothrix C.Agardh

Bacteria › Cyanobacteria › Cyanobacteriia › Cyanobacteriales › Rivulariaceae

Collected by
Transeau, E.N.
Collector number
1719b
Locality
Charleston
Region
Illinois, United States
Record type
Preserved specimen
59 Bishop specimens of Calothrix · collected 1906–2009Species page ›

Calothrix observed alive

Since 2000, iNaturalist observers have recorded 4 research-grade sightings in the wild, most recently on 2026-09-19.

Calothrix observed 2026-09-19

2026-09-19

Beverly Marsh, Dundas, Hamilton, ON, Canada

no rights reserved

Calothrix observed 2024-10-15

2024-10-15

28670 Villaviciosa de Odón, Madrid, España

(c) rodrimarquez, some rights reserved (CC BY-NC)

Calothrix observed 2021-06-04

2021-06-04

Puerto del Carmen, Las Palmas, Spanje

(c) Marleen Schouten, some rights reserved (CC BY-NC)

Calothrix observed 2020-08-18

2020-08-18

Beveridge Locks, ON K7H 3C7, Canada

(c) Gone But Not Forgotten - R.I.P, some rights reserved (CC BY-NC)

Observations and photos from iNaturalist, shown only when openly licensed.

Cite this specimen

Calothrix. BISH 550442. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956432469. Accessed via explore.bishopmuseum.org/specimens/bish/550442.

Record sources