Phylloptelea

Name

Phylloptelea

Rank

Genus

Authors (Pub.)

Doweld A. B.  

Publication

New names in Salix, extant and fossil allied forms (Salicaceae) [2025/11]

Journal

Geophytology

Volume

55

Issue

2

Page number

142

Year

2025

Parent Taxon

[Family] Ulmaceae

Fossil Status

leaves

Type

Phylloptelea nervosa

Diagnosis

Leafy twigs up to 2.5–8 cm long, with 4–10 leaves; internodes 3–12 mm long. Leaves narrow elliptical to ovate or lanceolate, petiolate (1.7–6.5 mm long); 11–65 mm long, 2.1–23 mm wide, length/width ratios 2.1–9.5; apex acute, attenuate, base acute with cuneate to rounded sides, symmetrical to asymmetrical; leaf margin entire to serrate; teeth simple, one per secondary vein; teeth along the full length of the lamina or confined to the upper twothirds to one-third of the lamina; teeth obtuse or right-angled, blunt or rounded, less frequently sharp. Venation pinnate; midvein stout, straight to curved; secondary veins regularly spaced, 6–18 pairs, uniformly curved toward the margin, terminating in teeth or sweeping upward and thinning along the margin (when margin entire), losing identity on approaching the superadjacent secondary, not forming prominent marginal loops; tertiary veins sinuous, often oppositely and alternately percurrent, diverging at right or somewhat obtuse angle to midvein; higher order venation forming a regular, more or less orthogonal mesh; highest order with excurrent branches 5th; areoles 4–sided to polygonal; freely ending veinlets simple, straight to curved, or branched once or twice.