Louis Otho (Otto) Williams (1908–1991), botanist of USA.

IPNI standard form: L.O.Williams

Taxon names authored

(List may be incomplete)

• 47 taxon names authored by Louis Otho Williams

Publications

(List may be incomplete)

• Williams, L.O. 1961. Tropical American plants, II. Fieldiana: Botany 29: 345–372. BHL Reference page. 

• Standley, P.C. & Williams, L.O. 1961. Flora of Guatemala – Part VII, Number 1. Fieldiana: Botany 24(7/1): 1–185. BHL Reference page. 

• Williams, L.O. 1972. Tropical American plants, XII. Fieldiana: Botany 34: 101–132. BHL Reference page. 

• Standley, P.C. (†) & Williams, L.O. 1975. Rubiaceae. In Flora of Guatemala – Part XI, Numbers 1 to 3. Fieldiana: Botany 24(11/1–3): I–VII, 1–274. BHL Reference page.