Ampelopsis malvaeformis (SCHLOTHEIM) MAI

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

Ampelopsis malvaeformis (SCHLOTHEIM) MAI

Pl. 6, figs 8-9

1822 Carpolithus malvaeformis SCHLOTHEIM , p. 98, pl. 21, fig. 9a-c (Penkhof).

1857 Vitis ludwigii A. BRAUN , p. 184 (Dorheim).

1957 Ampelopsis ludwigii (A. BRAUN) DOROFEEV , p. 644, pl. 1, figs 1-2 (Orlovka).

1977a Ampelopsis ludwigii (A. BRAUN) DOROFEEV ; Holý, p. 112 (Hrádek/N., Kristina Mine).

1982 Ampelopsis malvaeformis (SCHLOTHEIM) MAI in Mai and Gregor, p. 418, pl. 21, figs 1-3 (Salzhausen).

2003 Ampelopsis ludwigii (A. BRAUN) DOROFEEV ; Teodoridis, p. 23, pl. 6, fig. 13, pl. 7, figs 1-2 (Hrádek/N., drill cores).

Seeds triangular-cordate, 3.3–4.1 mm long, 2.3–3.5 mm wide, apex rounded to truncate to emarginate, base often long cuneate narrowing into stalk, dorsal side distinctly radially striate with oval chalaza, ventral side with a long trigonal keel of raphe reaching to the basal micropyle, raphe deeply cut into the apex, both lateral furrows diverging from the base obliquely below the apex ( Holý 1975, pp. 77-78, pl. 16, figs 7-12).

D i s c u s s i o n: According to Holý (1975) the seeds perfectly matched those found at Krościenko ( Szafer 1947) and in Upper Lusatia ( Mai 1964). Similar in form but of different size are those from Turów ( Czeczott et al. 1959). The specimens kept at the Naturkunde Museum, Berlin (orig. Mai 1964) are also slightly bigger. As suggested by Mai (2000) the living species matching the above fossils in seed morphology are A. orientalis (BOISS.) PLANCH. (Near East) and A. leeoides PLANCH. ( Japan).

M a t e r i a l: 24 seeds, G 3039, 8840-41.