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Pteris calabazensis
Pteris calabazensis Dorf Publ. Carnegie Inst. Washington, 412: 67. Oct 1930
- Name
- Pteris calabazensis
- Rank
- Species
- Generic Name
- [Genus] Pteris
- Authors (Pub.)
- Dorf E.
- Publication
- Pliocene floras of California [1930/10]
- Journal
- Publications of the Carnegie Institution of Washington
- Volume
- 412
- Page number
- 67
- Year
- 1930
- Parent Taxon
- [Genus] Pteris
- Fossil Status
- foliage
- Stratigraphy
- Pliocene
- Location
- Calabazas Canyon, California, USA
- Paleoregion
- America (North)
Data for Syntypus
- Repository
- Museum of Paleontology, University of California, Berkeley, USA
- Repository Number
- 301, 302
- Diagnosis
- Outline of frond unknown but at least pinnate and the pinnae pinnatifid; pinnae apparently long-lanceolate with a thin rachis, cut with numerous, separate, sub-opposite, narrowly lanceolate pinnules; individual pinnules sessile with entire or undulate margins, usually lobed at the base, diverging from the secondary rachis at very obtuse or right angles (80° to 90°); pinnules average 13 mm. in length and 5 to 7 mm. in width, the basal lobes increasing the width to 8 or 9 mm.; regularly spaced on the secondary rachis at intervals of 6 to 8 mm.; midrib of pinnules thin and arched slightly upward; veins fine, except the medial ones of the basal lobes, numerous (10 to 14 pairs), and branching dichotomously near the midrib, usually forking again before reaching the margin.
Nomenclatural synonyms (basionyms)
Species
