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Laurophyllum australum
Taxonomy
Laurophyllum australum was named by Jordan (1997). It is not extant. It is considered to be a form taxon. Its type specimen is RPU 563, a cuticle. Its type locality is Regatta Point - Early Pleistocene, which is in a Pleistocene/Pleistocene lacustrine mudstone/sandstone in Australia.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1997 | Laurophyllum australum Jordan pp. 61-62 |
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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.
†Laurophyllum australum Jordan 1997
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. J. Jordan 1997 | Leaves elliptic to ovate, about 3-5 mm long, about 1.2-2.0 mm broad. Apex obtusely acuminate, base slightly oblique. Petiole about 4 mm long. Margins revolute. Venation brochidodromous with about 7-8 pairs of secondary veins, tertiary venation weakly percurrent, higher order venation random reticulate, with no free ending veinlets. Cuticle of stomatiferous surface with stomata restricted to areoles between higher order veins. Stomata randomly oriented, guard cells small, sunken more deeply than subsidiary cells, subsidiary cells paired, lateral, even, symmetric. Cuticle of non-stomatiferous surface with irregularly arranged isodiametric epidermal cells, trichome bases common. |