Back
Sabiaceoxylon jezoense
Sabiaceoxylon jezoense K. Takah., Mits. Suzuki I.A.W.A. J., 24(3): 296. 2003
- Name
- Sabiaceoxylon jezoense
- Rank
- Species
- Generic Name
- [Genus] Sabiaceoxylon
- Authors (Pub.)
- Takahashi K.
Suzuki M.
- Publication
- Dicotyledonous fossil wood flora and early evolution of wood characters in the Cretaceous of Hokkaido, Japan [2003]
- Journal
- IAWA Journal
- Volume
- 24
- Issue
- 3
- Page number
- 296
- Year
- 2003
- Fossil Status
- stems (wood)
- Stratigraphy
- Coniacian
- Strat. comment
- Member Ub, Vpper part of the Yezo Group
- Location
- Obirashibe River, Obira-cho, Rumoi County, Hokkaido, Japan
- Paleoregion
- Eurasia (Japanese Archipelago)
Data for Holotypus
- Repository
- Botanical Garden, Tohoku University, Sendai, Japan
- Repository Number
- KK 94183
- Diagnosis
- Growth rings absent. Wood diffuse-porous. Vessels extremely numerous, 95-188 (mean 138) per square mm; solitary (29%) and in radial multiples of 2 to 3; polygonal in cross section; 20-50 (mean 32) x 25-55 (mean 35) um in tangential x radial diameter; walls rather thick (about 3 pm); 200-530 (mean 383) um in vessel element length; perforation plates mostly simple and sometimes scalariform with less than 10 bars; intervessel pits crowded alternate, large (8 pm in diameter), polygonal; vessel-ray pits large, round to oval, horizontally elongated (10 x 5 um in radial x vertical diameter).
Imperforate tracheary elements libriform fibers with no pits. Axial parenchyma sparse, apotracheal, no crystalliferous elements observed.
Rays up to 3 cells (55 um) wide; 170 um-4.1mmhigh; heterocellular; procumbent cells 40 x 20 um in radial x verticallengths andupright cells 20 x 50 pm in radial x vertical lengths; uniseriate rays abundant; no crystalliferous elements observed.
