Anonymous - s.n. - United Kingdom
Anonymous - s.n. - United States
Bolander - s.n. - United States
Brewer - 1461 - United States
Brewer - 2007 - United States
Brewer - 2842 - United States
Brewer - s.n. - United States
Engelmann - s.n. - Canada
Engelmann - s.n. - United Kingdom
Engelmann - s.n. - United States
Kellogg - s.n. - United States
Lyall - s.n. - United States
Tsuga mertensiana
Vasey - s.n. - United States
Watson - s.n. - United States