Salix aff. triandra

Denk, Thomas, Sami, Marco, Teodoridis, Vasilis & Martinetto, Edoardo, 2022, The Late Early Pleistocene Flora Of Oriolo, Faenza (Italy): Assembly Of The Modern Forest Biome, Fossil Imprint 78 (1), pp. 217-262 : 240

Salix aff. triandra L., 1753

Text-fig. 12g

M a t e r i a l. Oriolo MSF 626.

D e s c r i p t i o n. Leaf, simple, lamina broad lanceolate, ca. 700 mm long, 15 mm wide, base acute, apex acute, secondary venation brochidodromous, secondary veins departing from primary vein at low angle and then bending upwards, typically two intersecondary veins between two consecutive secondary veins, intersecondaries nearly perpendicular to primary vein or departing at low angles, small veins departing from the looping secondary veins enter teeth, teeth small, glandular, regularly and densely spaced.

R e m a r k s. This well-preserved leaf from Oriolo is virtually identical to modern leaves of S. triandra (verified by field observations [TD] and comparison with numerous herbarium material). Among other species, hybrids between S. caprea × S. viminalis sometimes look quite similar to the leaf from Oriolo, but differ in the crenulation of the leaf margin. Salix triandra has also been reported from the Reuverian (latest Pliocene) of Central Europe ( Laurent and Marty 1923).

Figures

Text-fig. 12. a, b: Salix aff. caprea. a: Oriolo MSF 857. b: Oriolo MSF 860. c, d: Salix aff. alba. c: Oriolo MSF 854. d: Oriolo MSF 854. e, f: Salix aff. viminalis vel eleagnos. e: Oriolo MSF 803. f: Oriolo MSF 801. g: Salix aff. triandra Oriolo MSF 626. h–k: Salix spp. div. indet. h: Oriolo MSF 865. i: Oriolo MSF 807. j: Oriolo MSF 804. k: Oriolo MSF 802. Scale bars 10 mm (a–e, h, i–k), 50 mm (f, g).