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Langeria
Taxonomy
Langeria was named by Wolfe and Wehr (1987). Its type is Langeria magnifica. It was considered monophyletic by Wolfe and Wehr (1987).
It was assigned to Hamamelidaceae by Wolfe and Wehr (1987); and to Platanaceae by Huegele and Manchester (2022).
It was assigned to Hamamelidaceae by Wolfe and Wehr (1987); and to Platanaceae by Huegele and Manchester (2022).
Species
L. magnifica (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1987 | Langeria Wolfe and Wehr |
| 2022 | Langeria Huegele and Manchester p. 368 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. A. Wolfe and W. Wehr 1987 | Leaves simple; shape elliptic to typically ovate, apex acute, base shallowly cordate to acute; petiole normal, as much as 6 cm long; margin serrate, apical angle acute, serration type C-2 or C-3, sinuses rounded, spacing regular, teeth simple to typically compound; venation pinnate; secondary veins 10 to 12 pairs, departing basally at high (70° to 90°) angles that diminish apically, broadly curved, typically craspedodromous; third through fifth pairs of secondary veins diverging from one another, with three to six conspicuous, craspedodromous external secondary branches; intersecondary veins uncommon; tertiary veins spaced at about 0.3 to 0.5 cm, orthogonal, straight to slightly sinuous, simple or
forked, percurrent; quaternary veins orthogonal, forming a coarse branched reticulum; quinternary veins orthogonal, forming a weakly branched reticulum of areoles; veinlets branching two to three times | |
| I. Huegele and S. Manchester 2022 | Leaves simple, petiolate with an inflated petiole base. Lamina elliptic to ovate, unlobed to trilobed, symmetrical to weakly asymmetrical. Apex acute, base obtuse, cordate to cuneate. Margin serrate, sinuses rounded. Teeth small, usually compound, glandular, distal flank concave, proximal flank convex, straight, or concave. Midvein straight or slightly curved. Secondary veins typically craspedodromous or sometimes mixed camptodromous, curved apically toward margin. Angle between midvein and secondaries generally decreases toward apex. Infrasecondaries present at the base of the lamina and usually paired. Tertiaries orthogonal, opposite ormixed percurrent. Quaternaries form a coarse reticulate mesh. Freely ending veinlets simple straight or branched once. Stipules ochreate, orbicular, foliar, and lobed. Higher-order venation forms a reticulate
mesh with freely ending veinlets. |
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 2009 | |||||
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Eocene | Canada (British Columbia) | L. magnifica (179231) | |
| Lutetian - Bartonian | USA (Washington) | L. magnifica (11537) |