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

34
represent subtropical element (P2), and occur
in the Polish Lowland in the Lower Oligocene
to Pliocene deposits (Stachurska et al. 1973,
Ziembińska-Tworzydło 1974, 1996, Ziembińska-
Tworzydło et al. 1994a). In the studied material
they were encountered sporadically.
(82) Tricolporopollenites staresedloensis
Krutzsch & Pacltová in Krutzsch 1969
Pl. 11, fi g. 14
1969 Tricolporopollenites staresedloensis Krutzsch
& Pacltová; Krutzsch, p. 474, pl. 2, fi gs 26–30.
1974 Tricolporopollenites starosedloensis Krutzsch
& Pacltová; Ziembińska-Tworzydło, p. 397,
pl. 24, fi g. 7a, b.
1994a Tricolporopollenites staresedloensis Krutzsch
& Pacltová; Ziembińska-Tworzydło et al., pl. 16,
fi gs 21–23.
R e m a r k s. Pollen grains of this species occur
in the Eocene to Middle Miocene of the Polish
Lowland (Grabowska 1996a). They represent
subtropical (P2) element (Ziembińska-
Tworzydło et al. 1994a). Only two pollen grains
of this species were found in one sample from
the Mużaków series.
Fossil pollen grains of Parrotia type are
known from the Miocene and Pliocene deposits
(Oszast 1967, 1973, Stachurska et al.
1973, Jahn et al. 1984). Tarasevich (1980) has
reported pollen grains of Parrotia maxima
Taras. from the Upper Miocene of the Oka–
Don plain.
Today Parrotia persica C.A. Mey. is an
endemic tree of the Caspian Sea region and the
Caucasus. The genus Distylium (about 10–18
species) is distributed mainly in south-eastern
Asia, Japan and Malaysia (Kubitzki 1993).
Ordo FAGALES
Familia FAGACEAE
Subfamilia CASTANEOIDEAE
Castanea Mill., Castanopsis (D. Don) Spach.
Castaneoideaepollis Grabowska
in Ziembińska-Tworzydło et al. 1994
(83) Castaneoideaepollis oviformis
(Potonié 1931) Grabowska in Ziembińska-
Tworzydło et al. 1994
Pl. 11, fi g. 10
1931a Pollenites oviformis n. sp., Potonié, p. 328, pl. 1,
fi g. 20.
1934 Pollenites oviformis Potonié, p. 95, pl. 5, fi gs
23, 27.
1953 Tricolporopollenites cingulum (Potonié) n. comb.
subsp. oviformis (Potonié) n. comb., Thomson
& Pfl ug, p. 100, pl. 12, fi gs 42–49.
1994b Castaneoideaepollis oviformis (Potonié) Grabowska
comb. nov.; Ziembińska-Tworzydło
et al., p. 21, pl. 12, fi g. 10.
R e m a r k s. In the analysed material pollen
grains of this taxon were encountered mainly
in the Lusatian seam.
(84) Castaneoideaepollis pusillus
(Potonié 1934) Grabowska
in Ziembińska-Tworzydło et al. 1994
Pl. 11, fi g. 11
1934 Pollenites quisqualis pusillus n. f., Potonié,
p. 71, pl. 3, fi g. 21.
1953 Tricolporopollenites cingulum (Potonié) n.
comb. subsp. pusillus (Potonié) n. comb., Thomson
& Pfl ug, p. 100, pl. 12, fi gs 28–41.
1994b Castaneoideaepollis pusillus (Potonié) Grabowska
comb. nov.; Ziembińska-Tworzydło et al.,
p. 21, pl. 12, fi gs 8, 9.
R e m a r k s. Pollen grains of Castaneoideaepollis
oviformis and C. pusillus occur in the
Palaeocene to Miocene deposits, and are similar
to pollen of Castanea Hill., Castanopsis Spach.,
as well Lithocarpus Bl. They represent subtropical
(P2) element (Ziembińska-Tworzydło
et al. 1994a, b, Grabowska 1996a). They were
encountered regularly in the studied material,
but in quantities not exceeding 2%.
The present-day genus Castanea (about 12
species of deciduous trees) is distributed in
temperate zone of the northern hemisphere,
while Castanopsis (120 species of deciduous
and evergreen trees) grows in tropical and subtropical
zones of southern and south-eastern
Asia. Lithocarpus (about 100 species of mainly
evergreen trees) occurs in the noth-eastern
India, through China and Malaysia to New
Guinea (Krüssmann 1976, Kubitzki 1993).
Subfamilia FAGOIDEAE
(85) Tricolporopollenites pseudocingulum
(Potonié 1931) Thomson & Pfl ug 1953
Pl. 12, fi gs 1a, b, 2a, b
1931a Pollenites pseudocingulum n. sp., Potonié,
p. 328, pl. 1, fi gs 3, 4.
1953 Tricolporopollenites pseudocingulum (Potonié)
n. comb., Thomson & Pfl ug, p. 99, pl. 12, fi gs
99–111.