The INTERNATIONAL FOSSIL PLANT NAMES INDEX
Global registry of scientific names of fossil organisms covered by the International Code of Nomenclature for Algae, Fungi, and Plants and the International Code of Zoological Nomenclature © 2014-2022

IDNAME urn:idName:ifpni.org:species:4F0D7454-E16C-4AD9-BCDE-A9E1F884FB68 species
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Hubeiia dicrofolia

Hubeiia dicrofolia J.-Z. Xue, S.-G. Hao, De-M. Wang, Z.-F. Liu Int. J. Pl. Sci., 166(3): 520. May 2005
Name
Hubeiia dicrofolia
Rank
Species
Original spelling
dicrofollia
Generic Name
[Genus] Hubeiia
Authors (Pub.)
Xue J.-Z. Hao S.-G. Wang D.-M. Liu Z.-F.  
Publication
A new lycopsid from the Upper Devonian of Hubei Province, China [2005/5]
Journal
International Journal of Plant Sciences
Volume
166
Issue
3
Page number
520
Year
2005
Fossil Status
stems
Stratigraphy
Famennian
Strat. comment
Xiejingsi Formation
Location
South side of Luoyan Hill, ca. 20 km southwest of Changyang County, Hubei Province, China
Paleoregion
Cathaysia (South)
Data for Holotypus
Repository
Beijing University, Department of Geology, Beijing, China
Repository Number
PKU-X-11a
Diagnosis
Leaf bases arranged in low helices or alternating pseudowhorls, 12–14 per gyre. Leaves show four-forked appearance, and at a distance of about two-thirds from the base two successive dichotomies occur. Four segments, equal or unequal in length, probably on two intersecting planes, two segments per plane. Solid primary xylem strands occupy the center of axes, with an estimated 20–24 protoxylem ridges on the stele surface. Protoxylem tracheids composed of annular elements. Primary phloem band four to eight cells wide. Phloem cells thin walled, rectangular, and elongate tangentially in transverse section and elongate along the axis of the stem. Leaf trace consists of more than 10 circular or ovate cells in transverse view. Epidermal cells, tapering or truncated at ends, arranged in one of two patterns: radially surrounding leaf bases or longitudinally elongate.
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