Rhus garwellii

Name

Rhus garwellii

Rank

Species

Generic Name

[Genus] Rhus

Authors (Pub.)

Flynn S. DeVore M. L. Pigg K. B.  

Publication

Morphological features of sumac leaves (Rhus, Anacardiaceae), from the latest Early Eocene flora of Republic, Washington [2019/6]

Journal

International Journal of Plant Sciences

Volume

180

Issue

6

Page number

000 [7] 471

Year

2019

Fossil Status

leaves

Stratigraphy

Ypresian

Strat. comment

49.42 +/- 50.54 Ma / Tom Thumb Member of the Klondike Mountain Formation

Location

Locality 8428; Boot Hill, Republic (Ferry County), Washington, USA

Paleoregion

America (North)

Data for Holotypus

Repository

Stonerose InterpretiveCenter, Republic, USA

Pub.

Morphological features of sumac leaves (Rhus, Anacardiaceae), from the latest Early Eocene flora of Republic, Washington [2019/6]

Diagnosis

Leaflets 8.5 cm long # 3.2–4.0 cm wide (x p 3:3, n p 2), L∶Wratio 2.1–2.6 (x p 2:3, n p 2)∶1, elliptic, medially symmetrical, apex acute, base acute, midvein prominent, tapering and thinning toward apex; secondary veins curved, acute to midvein, variable, alternate to subopposite, bifurcating ca. 40%–60% from midvein, major branch terminating in a tooth, minor branch terminating in sinus above or below vascularized tooth, thinning toward margin; tertiary veins intercostal (if intersecting a secondary vein) and epimedial (if intersecting a primary vein), sinuous; intersecondary veins common, alternating with secondary veins, and alternately attached to rachis; margin serrate; apex of tooth acute,with distal and proximal flanks convex, sinus angular.