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Avicennia sexiensis
Avicennia sexiensis D.W. Woodcock, H.W. Mey., Y. Prado I.A.W.A. J., 38(3): 316. 7 Nov 2017
- Name
- Avicennia sexiensis
- Rank
- Species
- Generic Name
- [Genus] Avicennia
- Authors (Pub.)
- Woodcock D. W.
Meyer H. W.
Prado Y.
- Publication
- The Piedra Chamana fossil woods (Eocene, Peru) [2017/11]
- Journal
- IAWA Journal
- Volume
- 38
- Issue
- 3
- Page number
- 316
- Year
- 2017
- Fossil Status
- stems (wood)
- Stratigraphy
- Bartonian
- Strat. comment
- 39 Mya
- Location
- Piedra Chamana Fossil Forest main site (79°10'W, 6°35' S), near Sexi village, northern Peruvian Andes, Peru
- Paleoregion
- America (South)
Data for Holotypus
- Repository
- Departamento de Paleontología de Invertebrados y Paleobotánica & Mineralogía y Petrología, Museo de Historia Natural, Universidad Mayor Nacional San Marcos, Lima, Peru
- Repository Number
- S1
- Diagnosis
- Wood with bands of parenchyma and included phloem. Vessels solitary
and in radial multiples up to 12–15 vessels, mean tangential diameter ~60 μm, perforations simple, intervessel pits alternate, vessel-ray pits similar to intervessel pits. Fibers non-septate and occasionally septate. Axial parenchyma scanty paratracheal and in anastomosing bands with included phloem. Phloem strands 100 × 150–200 μm (radial × tangential dimensions) occurring in the inner part of the parenchyma band; parenchyma cells dimorphic in radial view, narrow and axially elongate on the inner side of the band and wider and square to rectangular on the outer side of the band. Rays 1–3-seriate with procumbent, square, and upright cells mixed throughout. Sclereids present in the parenchyma bands.
