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Araucaria grandifolia
Taxonomy
Araucaria grandifolia was named by Del Fueyo and Archangelsky (2002) [Araucaria grandifolia Feruglio emend. Del Fueyo y Archangelsky 2002]. It is not extant.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Araucaria grandifolia Del Fueyo and Archangelsky |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Araucaria grandifolia Del Fueyo and Archangelsky 2002
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. M. Del Fueyo and A. Archangelsky 2002 | Shoots with secondary xylem preserved; rays homocellular, uniseriate, cross-field pitting of the cupressoid type. Leaves multiveined, large, triangular-lanceolate, with acute apex, decurrent base, entire margins; strongly keeled on abaxial surface, imbricate, closely packed and spirally arranged. Leaves also amphistomatic; abaxial and adaxial surfaces indistinguishable; stomata in regular rows; apertures parallel to leaf axis. Stomatal apparatus elliptical; monocyclic with four (two lateral and two polar) subsidiary cells; guard cells sunken, reniform. Epidermal cells of two shapes: in the same stomatal row, polygonal; between stomatal row, elongate rectangular; anticlinal flanges straight. Hypodermal layer of fibres present. Ultrastructure of the cuticular membrane consists of parallel and wavy fibrillar material, alternating with amorphous areas. A lamellate layer is present in the upper part of the cuticle. |