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Polygonocarpum curtisii
Polygonocarpum curtisii Manchester, E. O’Leary Bot. Rev. (Lancaster), 76(1): 70. Mar 2010
- Name
- Polygonocarpum curtisii
- Rank
- Species
- Generic Name
- [Genus] Polygonocarpum
- Authors (Pub.)
- Manchester S. R.
O’Leary E. L.
- Publication
- Phylogenetic distribution and identification of fin-winged fruits [2010/3]
- Journal
- Botanical Review
- Volume
- 76
- Issue
- 1
- Page number
- 70
- Year
- 2010
- Fossil Status
- fruits
- Stratigraphy
- Paleocene
- Location
- near Almont, North Dakota, USA
- Paleoregion
- America (North)
Data for Holotypus
- Repository
- Florida Museum of Natural History, Gainesville, USA
- Repository Number
- UF15722-22554
Data for Paratypus
- Repository
- Florida Museum of Natural History, Gainesville, USA
- Repository Number
- UF15722-22548, 22558
- Diagnosis
- Fruits wide-elliptical with emarginate base and apex, 9–10 mm high
and 12–14 mm wide, with three radially arranged vertical wings. Fruit body a
fusiform, single-seeded endocarp 1.4–1.8 mm wide and 5–7 mm high, triangular
in cross section. Several longitudinal veins traversing the full length of the fruit
body. Pedicel narrow (0.3 mm), about 4 mm long.
Wings chartaceous, with a dense anastomosing network of fine venation. A
thick, arched longitudinal vein occurs in each wing parallel to the margin of the
achene, 0.5–1 mm outside the achene. Fimbrial vein lacking.
