Is there some botanical garden or related institution with germplasm banks of marine macro algae and fern spores?

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Arvind Singh

Please check these links and attachments for said query

https://www.researchgate.net/publication/236158805_Recent_developments_in_ex_situ_and_in_situ_conservation_of_ferns

https://www.bgci.org/garden.php?id=787

Best of Luck

Article Recent developments in ex situ and in situ conservation of ferns

Ana M. Ibars

Seed and Spore bank of Jardi Botànic. Universitat de València

You can see:

http://jardibotanic.org/?apid=banc_de_germoplasma-11&idioma=_eng

Germplasm Bank