Alloberberis caeruleomontana Doweld

Plant Fossil Names Registry Number: PFN001320

Act LSID: urn:lsid:plantfossilnames.org:act:1320

Author: A. B. Doweld

Rank: species

Reference for this name: Doweld, A. B. (2018): New names of fossil Berberidaceae. – Phytotaxa 351(1): 72–80.

Page of description: 74

Previously published illustration or figures: pl. 38, figs 4, 11 in Chaney, R. W. & Axelrod, D. I. (1959): Miocene Floras of the Columbia Plateau II. – Carnegie Institution of Washington publication 617: 135–224.

Replaced synonym

Original diagnosis/description

Leaf lanceolate; total length unknown, estimated at about 8 cm.; base rounded to auriculate; width 3.3 to 4.5 cm.; petiole very short, not more than 2 to 3 mm. long; midrib thick and straight; alternate secondaries diverging at about 45° and then immediately increasing the angle to about 85° and entering marginal lobes; major intersecondaries departing at 40° to 45°, extending toward edge of sinuses, and then looping up- ward along margin, those in lower part of blade diverging at 70° to 85°, looping upward to join those above well within the margin; tertiaries forming large, irregular polygons; finer mesh not preserved; margin coarsely dentate, with outward-pointing, heavy spine tips, the sinuses deep; texture leathery.

Stratigraphy

Neogene, Miocene

Locality

United States
Blue Mountains, Oregon.