Is “Calothrix parietina” in the public domain?

Yes. “Calothrix parietina” is public domain and released under CC0, so it is free to download and reuse for any purpose, including commercially, with no permission needed.

Where is “Calothrix parietina” from?

It is catalogued from the open collection of Smithsonian Open Access and is free to reuse under CC0.

Can I use “Calothrix parietina” commercially for free?

Yes. As a CC0 public-domain work it can be used commercially, modified and redistributed with no fee and no attribution required.

“Calothrix parietina” by North American Terrestrial (4 Aug 1936) is a public-domain (CC0) artwork, free to view, download and reuse for any purpose. It is catalogued from the open collection of Smithsonian Open Access.

Calothrix parietina

Q: Who created “Calothrix parietina”?

North American Terrestrial (4 Aug 1936).

North American Terrestrial

Title	Calothrix parietina
Artist	North American Terrestrial
Date	4 Aug 1936 20th century
Origin	McDonald Lake, Hastings, Barry County, Michigan, United States, North America McDonald Lake
Holding institution	Smithsonian Open Access
Rights	Public domain (CC0)

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