Burke Museum of Natural History and Culture, University of Washington, Seattle, Washington, USA

Holotype UWBM PB 101336 for Concavistylon wehrii Manchester, Pigg et DeVore in Manchester, Pigg, Kvaček, DeVore & Dillhoff

Holotype UWBM 97583 for Fagus langevinii Manchester et R.M.Dillhoff