(syn. Vireo Ϯ Flat-billed Vireo V. nanus) George Newbold Lawrence (1806-1895) US businessman, collector, ornithologist; "Lawrencia, gen. nov. ... Type, Empidonax nanus Lawrence. ... This new form is dedicated to Mr. George N. Lawrence, of New York City, America's veteran ornithologist, as a slight token of esteem, and also in recognition of his important services to Neotropical ornithology" (Ridgway 1886).