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

cit.) confi rmed their botanical affi nity with
the genus Reevesia. The morphological species
Reevesiapollis triangulus represents subtropical
(P2) element (Ziembińska-Tworzydło et al.
1994a). It is characteristic for the Middle Miocene
to Upper Pliocene deposits (Sadowska
1973, Jahn et al. 1984). Tertiary localities of
Reevesia are known from southern and central
Europe, as well as from Asia (Petrov & Drazheva-Stamatova
1972). In the studied material
pollen grains of Reevesiapollis triangulus
were encountered regularly, but in quantities
not exceeding 1% (exceptionally reaching 2–3%
in bottom samples of both Legnica profi les).
Nowadays members of the genus Reevesia
(15 species of trees and shrubs) are distributed
in East Asia, from the Himalayas to Taiwan
in evergreen broad-leaved forests and rain forests
(Krüssmann 1978).
Familiae STERCULIOIDEAE,
RUTACEAE
(123) Tricolporopollenites sp. 2
Pl. 14, fi g. 12a, b.
1993 Sterculiaceae–Rutaceae, Tricolporopollenites sp.
12; Kohlman-Adamska, p. 149, pl. 25, fi g. 3a, b.
Pollen grains tricolporate, in equatorial
view circularly oval in outline, 22 × 18 μm in
size. Colpi long, pores about 2 μm in diameter.
Exine about 1 μm thick, surface reticulate
with regular lumina (about 1 μm in diameter)
and thin muri.
R e m a r k s. A few pollen grains of this type of
structure were found in the analysed material.
Ordo ROSALES
Familia ULMACEAE
Celtis L.
Celtipollenites Nagy 1969 emend. Kohlman-
Adamska & Ziembińska-Tworzydło
in Stuchlik et al. 2009
(124) Celtipollenites bobrowskae Kohlman-
Adamska & Ziembińska-Tworzydło
in Stuchlik et al. 2009
Pl. 14, fi g. 18
2009 Celtipollenites bobrowskae Kohlman-Adamska
& Ziembińska-Tworzydło sp. nov.; Stuchlik et al.,
p. 64, pl. 50, fi gs 10–15, pl. 51, fi gs 1–5.
45
R e m a r k s. These pollen grains are close to the
recent species Celtis sinensis Pers. Celtipollenites
bobrowskae represents warm-temperate
(A1) element, and is known from the Miocene –
Pliocene deposits (Stuchlik et al. 2009). These
pollen grains were regularly encountered in
all studied profi les in quantities not exceeding
1–2%, only in the grey clay horizon reaching
2–5%.
(125) Celtipollenites komloensis Nagy 1969
Pl. 14, fi g. 17
1969 Celtipollenites komlóensis n. g. n. sp., Nagy,
p. 456, pl. 43, fi gs 3, 7.
1985 Celtipollenites komloënsis Nagy, p. 197, pl. 111,
fi gs 17–20.
2009 Celtipollenites komloensis Nagy; Stuchlik et al.,
p. 65, pl. 50, fi gs 1–3, 5.
R e m a r k s. These pollen grains are close to
the recent species Celtis occidentalis L., and
represent warm-temperate element (A1). They
are reported from the Miocene-Pliocene deposits.
In Poland they are rarely encountered in
the Middle Miocene deposits (Stuchlik et al.
2009). Several pollen grains of this species
were found in the studied material.
The present-day genus Celtis contains about
80 (100) species of trees, shrubs, rarely climbers,
extended in temperate and tropical zones.
Celtis sinensis Pers. is distributed in eastern
China, Japan and Korea. Celtis occidentalis
grows on humid soils in the Atlantic zone of
North America (Kearney 1901, Krüssmann
1976, Kubitzki 1993).
Ulmus L.
Ulmipollenites Wolff 1934
(126) Ulmipollenites maculosus Nagy 1969
Pl. 14, fi g. 19
1969 Ulmipollenites maculosus n. sp., Nagy, p. 223,
pl. 52, fi gs 1, 2.
R e m a r k s. These pollen grains represent
cool-temperate element (A2), and occur in the
Oligocene to Pliocene deposits (Ziembińska-
Tworzydło 1996, Stuchlik et al. 2009). In the
studied material these pollen grains occurred
regularly in quantities 1–2%, in several
samples of the grey clay horizon and Mużaków
series reaching about 5%.