Gualterio Looser Schallemberg was a Chilean botanist and engineer of Swiss parentage. He owned a factory that made agricultural implements.
In 1928 Looser joined the American Fern Society, and started to publish papers on the pteridophytes of Chile. His herbarium containing ca 8000 specimens was given Conservatoire and Jardin Botanique Geneva.
Laureliopsis philippiana (Looser)Schodde as Laurelia
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