The INTERNATIONAL FOSSIL PLANT NAMES INDEX
Global registry of scientific names of fossil organisms covered by the International Code of Nomenclature for Algae, Fungi, and Plants and the International Code of Zoological Nomenclature © 2014-2024

IDNAME urn:idName:ifpni.org:species:F2ACE2A5-21B8-4D2A-BCC5-2216FD38ACFF species
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Quercus orindensis

Quercus orindensis Dorf Publ. Carnegie Inst. Washington, 412: 89. Oct 1930
Name
Quercus orindensis
Rank
Species
Generic Name
[Genus] Quercus
Authors (Pub.)
Dorf E.  
Publication
Pliocene floras of California [1930/10]
Journal
Publications of the Carnegie Institution of Washington
Volume
412
Page number
89
Year
1930
Parent Taxon
[Genus] Quercus
Fossil Status
leaves
Stratigraphy
Pliocene
Location
St. Mary's College, California, USA
Paleoregion
America (North)
Data for Syntypus
Repository
Museum of Paleontology, University of California, Berkeley, USA
Repository Number
360-362
Diagnosis
Leaves obovate to obovate-lanceolate or lanceolate, narrowing gradually to an acutely acuminate base and more abruptly to an acute, pointed, sometimes prolonged apex; length from 3.5 to 6.5 cm; maximum width from 1.5 to 2.9 cm.; petiole rather thin and up to 9 mm. long; midrib rather stout, usually straight or but slightly curved; 6 to 10 pairs of slender secondaries, sub-opposite to irregularly alternate, leaving the midrib at an angle of 30° to 50° or rarely as. high as 80°, and terminating either in the marginal teeth or the sinuses between the teeth; finer venation indistinct; margin with 3 or 4 pairs of lobate teeth, though in some cases the lo bate character is not pronounced; teeth sharp-pointed and directed slightly upward; texture rather firm or sub-coriaceous as indicated by the curling of the leaves and the indistinct tertiary venation.

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