Middle Miocene palynoflora of the Legnica lignite deposit complex ...

40
and occur in the Oligocene and Miocene deposits
(Ziembińska-Tworzydło et al. 1994a, b).
A few pollen grains of this species were found
in the analysed material, mainly in the grey
clay horizon.
Platycarya Sieb. & Zucc.
Platycaryapollenites Nagy 1969 emend.
Frederiksen & Christopher 1978
(103) Platycaryapollenites miocaenicus
Nagy 1969
Pl. 13, fi gs 6, 7
1969 Platycaryapollenites miocaenicus n. sp., Nagy,
p. 207, pl. 116, fi gs 5–9.
R e m a r k s. This morphological species represents
warm-temperate (A1) element (Stuchlik
et al. 2009). Pollen grains of Platycarya type
occur in the Upper Palaeocene/Lower Eocene to
Miocene deposits (Muller 1981), and are found
sporadically in the Pliocene (Thomson & Pfl ug
1953). They are known from numerous localities
of Europe and North America (Mueller
1981, Manchester 1987). In Poland they occur
in the Middle Miocene, rather not exceeding 1%
(Stuchlik et al. 2009). In the studied material
several pollen grains of this type were found.
The present-day monotypic genus Platycarya
(P. strobilacea Sieb. & Zucc.) is distributed
in Japan, Korea, China, and Vietnam
(Krüssmann 1977, Kubitzki 1993).
Pterocarya Kunth
Polyatriopollenites Pfl ug 1953
(104) Polyatriopollenites stellatus (Potonié
1931) Pfl ug in Thomson & Pfl ug 1953
Pl. 13, fi g. 2
1931b Pollenites stellatus n. sp., Potonié, pl. 2,
fi g. V47b.
1937 Pterocarya-pollenites stellatus (Potonié); Raatz,
p. 18, fi g. 8.
1953 Polyatriopollenites stellatus (Potonié) n. comb.
(Pfl ug); Thomson & Pfl ug, p. 91, pl. 10, fi gs
85–94.
R e m a r k s. These pollen grains represent
warm-temperate (A1) element (Ziembińska-
Tworzydło et al. 1994a), and occur in the
Eocene to Miocene of Europe, North America
and Asia (Manchester 1987). In Poland they
are common in the Middle and Upper Miocene
(Stuchlik et al. 2009). Pollen grains of Polyatriopollenites
stellatus were found in situ in
fossil infl orescences of Platycarya sosnicensis
Kohlman-Adamska, Ziembińska-Tworzydło
& Zastawniak from the Late Miocene fl ora of
Sośnica (Kohlman-Adamska et al. 2004). Pollen
grains of Polyatriopollenites stellatus were
encountered regularly in all studied profi les,
reaching max. 8%.
The recent members of Pterocarya genus
(10 or 6 species of deciduous trees) grow in
the Caucasus, Iran, Japan, China, Laos, and
Vietnam in river valleys on fertile, humid alluvial
soils, in polydominant broad-leaved forests
(Krüssmann 1978, Bugała 1991, Kubitzki
1993).
Ordo ERICALES
Familia SYMPLOCACEAE
Symplocos Jacq.
Symplocoipollenites Potonié 1951
ex Potonié 1960 emend. Słodkowska
in Ziembińska-Tworzydło et al. 1994
(105) Symplocoipollenites latiporis (Pfl ug
& Thomson 1953) Słodkowska in Ziembińska-
Tworzydło et al. 1994
Pl. 13, fi g. 8a, b
1953 Porocolpopollenites latiporis n. sp. (Pfl ug
& Thomson); Thomson & Pfl ug, p. 93, pl. 10,
fi gs 123, 124.
1994b Symplocoipollenites latiporis (Pfl ug & Thomson)
Słodkowska comb. nov.; Ziembińska-Tworzydło
et al., p. 30, pl. 18, fi gs 1a, b, 2.
R e m a r k s. Pollen grains of Symplocoipollenites
latiporis differ from S. vestibulum in
triangular outline with concave sides and
delicate gemmate surface. Only a few pollen
grains of this species were found, mainly in the
Lusatian seam.
(106) Symplocoipollenites vestibulum
(Potonié 1931) Potonié 1951 ex Potonié 1960
Pl. 13, fi g. 9a, b
1931a Pollenites vestibulum n. sp., Potonié, p. 329,
pl. 2, fi g. 23.
1951 Symplocoipollenites vestibulum Potonié, p. 147.