ROSALES BERCHTOLD & J. PRESL, 1820 URTICALEAN ROSIDS Previously, the Cannabaceae Martinov (1820), Moraceae Gaudich. (1835), and Ulmaceae Mirbel (1815) were placed in the Order Urticales Juss. ex Bercht. and J. Presl (1820); they are now part of the Rosales (APG III) and informally referred to as urticalean Rosids. Three woods of this informal group, not assignable to family were found in the middle Eocene Clarno Nut Beds (Wheeler and Manchester 2002). The nearby Post Hammer locality (UF 279) has multiple samples of Ulmus L. (1753) (Wheeler and Manchester 2007) and one species of Celtis L.(1753) (Cannabaceae) (Wheeler and Manchester 2021). The Cannabaceae are represented in the fruit and seed flora of Dietz Hill (UF 278) by endocarps of Aphananthe Planchon (1848) (Manchester and McIntosh 2007). At Dietz Hill, there are three samples (UF 278-84866, UF 278-84883, UF 278-62702) with features similar to Ulmus woodii Wheeler and Manchester (2007) from Post Hammer (UF 279). Additionally, we have found Dietz Hill (UF 278) woods with features found in the Cannabaceae and Moraceae. These are described below and compared in Table 3.

Published as part of Wheeler, Elisabeth A., Manchester, Steven R. & Baas, Pieter, 2023, A late Eocene wood assemblage from the Crooked River Basin, Oregon, USA, pp. 1-55 in PaleoBios 40 (14) on page 22, DOI: 10.5070/P9401462457, http://zenodo.org/record/10913330