Tetrastigma lobata CHANDLER

Dedicated in memory of the late FrantiŠek Holý (1935 - 1984), an eminent Czech palaeobotanist, Holý, František, Kvaček, Zlatko & Teodoridis, Vasilis, 2012, A Review Of The Early Miocene Mastixioid Flora Of The Kristina Mine At Hrádek Nad Nisou In North Bohemia (The Czech Republic), Acta Musei Nationalis Pragae Series B 68 (3 - 4), pp. 53-118 : 69

Tetrastigma lobata CHANDLER

Pl. 6, figs 12-13

1926 Tetrastigma lobata CHANDLER , p. 32, pl. 5, figs 3a-c (Hordle).

1977a Tetrastigma lobata CHANDLER ; Holý, p. 112 (Hrádek/N., Kristina Mine).

Seeds rounded obovoid, 3.5–5.4 mm long, 3.1–4.9 mm wide, apex rounded, with only a narrow raphe, base round- ed, with a short micropyllar knob, dorsal side with oval chalaza and deep radiating furrows that divide the surface into lobes, ventral side with narrow parallel-sided keel and shallow indistinct raphe, the surface perpendicularly divided on both side of keel by furrows in several distinct lobes ( Holý 1975, pp. 79-80, pl. 17, figs 5-7).

D i s c u s s i o n: According to Holý (1975) these seeds deviate from the variation within Tetrastigma chandlerae KIRCHHEIMER and match the record of Tetrastigma lobata from the Upper Lusatia, a single record of this species from the continental Europe, where it is associated with A. chandlerae . Czeczott et al. (1959) assigned similar material from Turów to the latter and stated that it is connected with transitional forms. They did not publish the quantitative variation within their specimens, thus not allowing exact assessment of the relationship.

M a t e r i a l: 10 seeds and fragments, G 3054, 8844.