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Serripteris
Genus Serripteris N.P. Rowe, Galtier Rev. Palaeobot. Palynol., 61(3–4): 259. 14 Nov 1989
- Name
- Serripteris
- Rank
- Genus
- Authors (Pub.)
- Rowe N. P.
Galtier J.
- Publication
- A lower carboniferous plant assemblage from La Serre (Montagne Noire, France). Part I [1989/11]
- Journal
- Review of Palaeobotany and Palynology
- Volume
- 61
- Issue
- 3–4
- Page number
- 259
- Year
- 1989
- Parent Taxon
- [Phylum] Pteridophyta
- Fossil Status
- stems (wood)
- Type
- Serripteris feistii
- Diagnosis
- Plants represented by permineralized fragments of axis containing only primary tissues. Three successive orders of axes. First order axis having four-ribbed primary xylem column with mesarch protoxylem. Large metaxylem elements occurring along the middle of each arm; protoxylem strand occurring near tip of each rib, consisting of tracheids, often represented by a cavity. Protoxylem strand undergoing tangential division before branch trace emission. Vascular traces of two types: major traces produced from the tips of xylem ribs, proximally elliptical in transverse outline, with 2-3 protoxylem strands aligned tangentially, becoming V-shaped distally with three mesarch protoxylem strands; subsidiary traces, circular in transverse outline with central protoxylem strand, occurring at the base of major appendages (second order axes). Order of major trace departure, complex, helical or pseudo opposite. Protoxylem tracheids with helical thickenings, metaxylem tracheids with scalariform to circular-oval bordered pitting. Main appendages (second order axes) with swollen bases. Cortex similar in all axes consisting of inner parenchymatous cortex and relatively thicker-walled elongated cells with diameters decreasing towards periphery
of axis.
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