A Review Of The Early Miocene Mastixioid Flora Of The Kristina Mine At Hrádek Nad Nisou In North Bohemia (The Czech Republic)
Author
Dedicated in memory of the late FrantiŠek Holý (1935 - 1984), an eminent Czech palaeobotanist
Author
Holý, František
National Museum, Václavské nám. 68,115 79 Prague 1, the Czech Republic
Author
Kvaček, Zlatko
Institute of Geology and Palaeontology, Faculty of Science, Charles University in Prague, Albertov 6, 128 43 Prague 2, the Czech Republic, e-mail: kvacek @ natur. cuni. cz
Author
Teodoridis, Vasilis
Department of Biology and Environmental Studies, Faculty of Education, Charles University in Prague, M. D. Rettigové 4, 116 39 Prague 1, the Czech Republic, e-mail: vasilis. teodoridis @ pedf. cuni. cz
text
Acta Musei Nationalis Pragae Series B
2012
2012-12-31
68
3 - 4
53
118
journal article
10.5281/zenodo.13191145
2533-4069
13191145
Tsuga schneideriana
KUNZMANN
et
MAI
Pl. 1, fig. 4, pl. 10, figs 3-4
1976
2005
Tsuga
sp.
; Knobloch and Kvaček, p. 13, pl. 2, figs 6-9, pl. 12, fig. 21, pl. 15, fig. 12, pl. 20, fig. 9, text-fig. 3 (Wackersdorf).
Tsuga schneideriana
KUNZMANN
et
MAI
, p. 106, pl. 12, figs 1-9, pl. 13, figs 1-3 (Wiesa).
Leaves linear, needle-like, flat,
1 mm
wide, one complete
17 mm
long, blunt at apex, shortly petiolate at base, with obliquely attached petiole 0.7 mm long, entire on margin, adaxially slightly grooved along the strong and straight midrib, hypostomatic, epidermis thinly cutinized, non-modified cells straight-walled, very long, with smooth anticlinal walls, two abaxial stomatal bands containing 3–5 rows of stomata with sparsely distributed incompletely amphicyclic stomata arranged longitudinally. Stomatal apparatus composed of two lateral short halfmoon-shaped and two polar elongate subsidiary cells bordering the stomatal pit 25 × 50 µm in size.
D i s c u s s i o n: Fossil needles similar to those described above from the Kristina Mine (Kvaček 1966, p. 19, pl. 3, figs 6a, b, pl. 4, fig. 3, text-figs 8-9) were assigned to
Tsuga
from Wackersdorf by Kvaček and
Knobloch (1976)
and later from Wiesa by
Kunzmann and Mai (2005)
, who more thoroughly studied modern living counterparts. Kvaček (1966) recognized the erroneous identification of such fossils assigned to
Keteleeria
(
Mai 1964
)
and suggested as the most similar living species
T. jeffreyi
HENRY
and
T. mertensiana
(
BONG
.)
SARG
.
from North America while
Kunzmann and Mai (2005)
, based on more complex comparative material argued for
Tsuga dumosa
(D.
DON
)
EICHLER
from southern
China
, NE
India
and
Burma
as the nearest living relative.
M a t e r i a l: Isolated needles on slides, G 8868a-b, 8869a-c, 8870, 8871 (KR 104A, B, 346).
Cathaya
CHUN
et
KUANG