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Populus prefremontii
Populus prefremontii Dorf Publ. Carnegie Inst. Washington, 412: 77. Oct 1930
- Name
- Populus prefremontii
- Rank
- Species
- Generic Name
- [Genus] Populus
- Authors (Pub.)
- Dorf E.
- Publication
- Pliocene floras of California [1930/10]
- Journal
- Publications of the Carnegie Institution of Washington
- Volume
- 412
- Page number
- 77
- Year
- 1930
- Parent Taxon
- [Genus] Populus
- Fossil Status
- leaves
- Stratigraphy
- Pliocene
- Location
- St. Mary's College, California, USA
- Paleoregion
- America (North)
Data for Not defined
- Repository
- Museum of Paleontology, University of California, Berkeley, USA
- Repository Number
- 332
- Diagnosis
- Leaves broadly deltoid to reniform, invariably wider than long, narrowing to an acutely acuminate or slightly rounded apex, and very abruptly to a wide, truncate or slightly cordate base; length from 4 to 5 cm.; width from 5 to 6.2 cm.; petiole not preserved; midrib thin, but firm and straight; 6 to 9 pairs of thin, opposite to alternate secondaries, diverging from the midrib at an obtuse angle approaching 90° near the base and somewhat less toward the apex; secondaries curving widely upward, becoming obscured near the margin; tertiary venation indistinct; margin coarsely serrate, the teeth large, rounded, and asymmetrically pointing toward the apex; texture sub-coriaceous, as indicated by the indistinct venation and the curling of the borders in a few of the specimens.
