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Cynometra grandis
Cynometra grandis D.W. Woodcock, H.W. Mey., Y. Prado I.A.W.A. J., 38(3): 345. 7 Nov 2017
- Name
- Cynometra grandis
- Rank
- Species
- Generic Name
- [Genus] Cynometra
- 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
- 345
- 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
- S152
- Diagnosis
- Wood with growth rings marked by marginal parenchyma and changes in
vessel diameter, diffuse porous. Vessels solitary and in radial multiples, mostly of 2–3, mean tangential diameter 50–100 μm, perforations simple; intervessel pits alternate; vessel-ray pits bordered, similar to intervessel pits. Fibers mainly non-septate. Parenchyma scanty paratracheal to vasicentric and unilaterally winged-aliform, also in short apotracheal bands. Rays storied, 1–2-seriate but predominantly biseriate, composed of all procumbent cells or with one to few marginal rows of (square to) upright and high
procumbent cells. Prismatic crystals in axial parenchyma and fibers.
