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 © 2014-2024

IDNAME urn:idName:ifpni.org:species:047B11DF-6C8E-4B09-B48E-444F346E9F4E species
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Cunninghamia beardii

Cunninghamia beardii Buczk., Stockey, B. Atk., G.W. Rothwell Int. J. Pl. Sci., 177(1): 000. 23 Nov 2015
Name
Cunninghamia beardii
Rank
Species
Generic Name
[Genus] Cunninghamia
Authors (Pub.)
Buczkowski E. L. Stockey R. A. Atkinson B. A. Rothwell G. W.  
Publication
Cunninghamia beardii sp. nov. (Cupressaceae: Cunninghamioideae), anatomically preserved pollen cones from the Eocene of Vancouver Island, British Columbia, Canada [2015/11]
Journal
International Journal of Plant Sciences
Volume
177
Issue
1
Page number
000
Year
2015
Fossil Status
leafy twigs (with male cones & pollen)
Stratigraphy
Eocene
Location
Appian Way, Vancouver Island, British Columbia, Canada
Paleoregion
America (North)
Data for Holotypus
Repository
Royal British Columbia Museum, Victoria, British Columbia, Canada
Repository Number
AW 358 A bot, B1 top, B1 bot.
Diagnosis
Cluster of at least 18 pollen cones, subterminal on leafy branch, helically arranged. Ultimate leafy branch terminating in scale leaves, significantly increasing in diameter where pollen cones attached. Leafy twig with parenchymatous pith surrounded by cylinder of secondary xylem, parenchymatous cortex with numerous resin canals, hypodermis of thick-walled cells. Vegetative leaves amphistomatic, with large central resin canal abaxial to vascular bundle, elongate zone of transfusion tissue, nonplicate mesophyll, hypodermis three to four cells thick. Pollen cones at least 2 mm in diameter, produced in axil of bract; three scale leaves surrounding base of cone axis. Microsporophylls helically arranged. Pollen sacs abaxial, three per microsporophyll, elongate. Pollen subspheroidal; exine scabrate, orbiculate, no papilla evident.

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