Abstracts of volume 71, 1999
Chytrý M., Grulich V., Tichý L. & Kouřil M.
(1999): Phytogeographical boundary between the Pannonicum and Hercynicum: a
multivariate landscape analysis in the Podyjí/Thayatal National Park, Czech
Republic/Austria. - Preslia, Praha, 71: 23-41.
The phytogeographical boundary between two major Central European floristic
regions is analysed at the landscape scale in the border area between the Czech
Republic and Austria. A database of floristic records, potential natural
vegetation types, selected environmental variables, and mean Ellenberg
indicator values was compiled for a grid of 172 quadrats of approximately
1.2×1.1 km. The data on flora and vegetation were subjected to detrended
correspondence analysis to reveal the main gradients, and to cluster analysis
to suggest a regional land classification. The patterns revealed by these
analyses were related to environmental variables, and cluster analysis of
environmental variables was used to produce an environmental land
classification. The results indicate that the Pannonicum and Hercynicum are
separated by a transitional zone, located on the prominent deforested slope at
the edge of the Bohemian Massif. Floristically, this zone is more closely
related to the Hercynicum, but according to the environmental land
classification it rather belongs to the Pannonicum. This zone possesses some
additional unique features not shared with the two main regions, e. g. low
proportion of nitrophilous species and occurrence of several species restricted
to it. The Dyje/Thaya river valley, which runs roughly perpendicular to the
main phytogeographical boundary, does not influence the regional
phytogeographical subdivision and belongs to the same phytogeographical region
as the adjacent landscape.
Buryová B. & Kučera J. (1999): Two interesting
bryofloristic records from the Krkonoše Mts: Racomitrium macounii subsp.
alpinum and Grimmia reflexidens. - Preslia, Praha, 71: 21-
26.
During the field inventory survey of bryophytes in eastern part of the
Krkonoše Mts carried out in 1998, a new species to the bryoflora of the Czech
Republic was discovered - Racomitrium macounii subsp. alpinum.
After the revision of Racomitrium sudeticum from herbaria PRC and PR,
three other specimens of R. macounii subsp. alpinum were
revealed, all of them collected in the vicinity of existing localities. Another
interesting species discovered was Grimmia reflexidens (known to-date
rather as Grimmia sessitana). This taxon was omitted from the recent
check-list of Czech bryophytes (Váňa 1997) due to the doubts about
Vilhelm's records and poor understanding of G. reflexidens with respect
to Grimmia alpestris. The revision of Grimmia alpestris specimens
from herbaria PRC, PR, BRNU and OP confirmed the Vilhelm's
determination of G. reflexidens from the Krkonoše Mts as correct and
excluded (for the time being) G. alpestris from bryoflora of these
mountains. On the contrary, only G. alpestris could be confirmed for the
bryoflora of the other high Sudeten Mts, i.e. the Hrubý Jeseník Mts.
Hroudová Z., Zákravský P. & Jarolímová V. (1999):
Bolboschoenus glaucus - a new species in the Czech Republic. - Preslia,
Praha, 71: 27-32.
Bolboschoenus glaucus from the former brick-clay pit in the suburb
Košíře of the city of Prague is reported for the first time from the territory
of the Czech Republic. Description of the plant, its European distribution,
characteristics of the locality and vegetation are given. The first ever record
of chromosome number of the species (n = 55) is reported. The species is
supposed to be introduced into the Czech Republic.
Dvořáková M. (1999): Euphrasia corcontica, a
species endemic to the Krkonoše Mts. (West Sudeten). - Preslia, Praha, 71: 33-
35.
A taxonomic reclassification (elevation of a variety to the species level)
is proposed for the species Euphrasia corcontica. Some data concerning
its speciation and distribution are discussed.
Sádlo J. & Štepánková J. (1999): Sedum
caucasicum - a new species for Turkey. - Preslia, Praha, 71: 33-
35.
Sedum caucasicum (Grossg.) Boris. is reported from two localities of
North East Turkey, as a new taxon for the flora of Turkey. Its morphological
characters, chromosome number, differences from some other taxa of Sedum
sect. Telephium and comments on its ecology are given.
Lundevall C.-F. & Oellgaard H. (1999): The genus
Taraxacum in the Nordic and Baltic countries: Types of all specific,
subspecific and varietal taxa, including type locations and sectional
belonging. - Preslia, Praha, 71: 43-171.
An alphabetical list of all published specific and infraspecific taxa in
the genus Taraxacum (Asteraceae), found in the Nordic and Baltic
countries (Denmark, Estonia, Faroe Islands, Finland, Iceland, Latvia,
Lithuania, Norway, Sweden), is presented, including information about their
resp. type specimens (literature with first published protologue, herbarium,
identification data, notes). In total, 424 untypified taxa are typified in
this paper. An appendix, listing taxa with lacking typification, is added. Two
taxa are given resp. a new status and a new name, viz. Taraxacum
canaliculatum (Lindb. fil.) f. potens Lundevall & H. Oellgaard
stat. nov., and Taraxacum oddense Lundevall nom. nov. The sectional
belonging of the resp. species, based on morphological features, is added.
Procházka F. & Harčarik J. (1999): New localities
of Diphasiastrum species in the Krkonoše Mts and elsewhere in the Czech
Republic where three or more species of this genus are recorded. - Preslia,
Praha, 71: 193-215.
Ten localities, found mostly after 1990, with the occurrence of three or
more species of the genus Diphasiastrum Holub have been investigated in
detail in the Czech Republic. One of the localities is in the Krkonoše Mts and
harbours all 6 Central European species of the genus.
Krahulcová A. & Krahulec F. (1999): Chromosome
numbers and reproductive systems in selected representatives of
Hieracium subgen. Pilosella in the Krkonoše Mts (the Sudeten
Mts). - Preslia, Praha, 71: 217-234.
Chromosome numbers and reproductive systems are given for the following
taxa of Hieracium subgen. Pilosella occurring in the Krkonoše
Mts: H. pilosella L. (2n = 36, sexual), H. lactucella Wallr. (2n
= 18, sexual), H. caespitosum Dumort. (2n = 36, the mode of reproduction
unknown), H. aurantiacum L. (2n = 36, apomictic), H. schultesii
F.W. Schultz (2n = 36, sexual; 2n = 45, apomictic), H. macrostolonum G.
Schneider (2n = 54, the mode of reproduction unknown), H. glomeratum
Froel. (2n = 36, 45, both apomictic), H. floribundum Wimm. et Grab. (2n
= 36, apomictic), H. iseranum Uechtr. (2n = 36, apomictic), H.
apatelium Nägeli et Peter (2n = 36, both sexual and apomictic; 2n =
45, apomictic), H. piloselliflorum Nägeli et Peter (2n = 36 the
mode of reproduction unknown; 2n = 45, 44, apomictic; 2n = 54, apomictic),
H. stoloniflorum Waldst. et Kit. (2n = 54, apomictic), H. rubrum
Peter (2n = 54, apomictic). Chromosome numbers are reported for the first time
for H. apatelium, H. iseranum, and H. piloselliflorum, a
new chromosome number was determined for H. macrostolonum and H.
schultesii. The group of species (H. caespitosum, H.
glomeratum, H. floribundum, H. iseranum) has been found to
have a single long marker chromosome in the karyotype; this fact supports the
view of their relationship. The mode of reproduction is here examined for the
first time in polyploid hybridogenous species H. iseranum, H.
apatelium, H. piloselliflorum, H. stoloniflorum, H.
rubrum and H. schultesii from nature; the apomictic reproduction of
tetraploid H. floribundum and of pentaploid H. glomeratum is also
a new information. The variation of Hieracium subgen. Pilosella
in the Krkonoše Mts is discussed in connection with the presence of at least
four sexual types and diversity of reproductive systems. The occurrence of
H. stoloniflorum in the Krkonoše Mts is dealt with.
Procházka F. & Čurn V. (1998): A new orchid hybrid
Dactylorhiza ×silvae-gabretae (D. fuchsii ×
D. traunsteineri) from the Czech Republic. - Preslia, Praha, 70: 193-
215.
An orchid population of Dactylorhiza traunsteineri in the
southeastern part of the Czech Bohemian Forest (Šumava Mts) in southwestern
Bohemia (near the village Želnava) was studied for more than 20 years. Besides
the hybrid of this species with D. comosa subsp. majalis (=
D. ×dufftiana), plants corresponding with the hybrid
combination D. fuchsii × D. traunsteineri were observed.
This new hybrid is described as Dactylorhiza ×silvae-
gabretae Procházka et Čurn. Isozyme markers separated by nondenaturing
discontinuous polyacrylamide gel electrophoresis were used for description and
classification of plants belonging to D. traunsteineri, D.
fuchsii and D. ×silvae-gabretae. The pattern of SDH
(shikimate dehydrogenase) isozymes exhibited a hybrid character in analysed
plants of D. ×silvae-gabretae.
Krahulec F. (1999): Two new hybrids of Epilobium
ciliatum (Onagraceae). - Preslia, Praha, 71: 241-248.
Hybrids of Epilobium ciliatum Rafin. with E. alpestre (Jacq.)
Krocker (E. ×prochazkae) and with E. alsinifolium
Vill. (E. ×josefi-holubii) are described from the Krkonoše
Mts. It is highly probable that E. ciliatum hybrids will be more common
in alpine areas in future, because this species has become a regular component
of the ruderal flora even in area above the timberline. Hybrids between E.
anagallidifolium Lam. and E. palustre L. (E.
×dasycarpum Fries) and E. alpestre and E. collinum
C. C. Gmelin (E. ×hectori-léveilleanum Thell.) are reported
for the first time from this area of the Czech Republic.
Kovář P. (1999): Distribution of heavy metals in
stands of macrophytes along a cross-section gradient in the Elbe River lowland
(near Poděbrady, Czech Republic). - Preslia, Praha, 71: 249-256.
This case study aims to evaluate the degree of retention and removal of
river pollutants by macrophytes. It was carried out in the Elbe river basin
near Poděbrady, Czech Republic. Pollutant loads are evaluated through
biomonitoring of species present in various biotopes on a transect across the
floodplain: river banks, parts of the former river bed, i. e. oxbows, both
connected and disconnected from the river. Pollutant-retention capacity of two
species of different growth strategy and characteristics, Glyceria
aquatica (L.) Wahlb. and Acorus calamus L., is also compared.
Soukupová L. & Rauch O. (1999): Floor vegetation
and soil of acidified Norway spruce forests in the Giant Mountains (Central
Europe). - Preslia, Praha, 71: 257-275.
In autochthonous montane Norway spruce forest of the Giant Mts exposed to
the airborne acidification, four representative communities identified as
Athyrio alpestris-Piceetum typicum, Calamagrostio villosae-Piceetum
typicum, C.v.-P. fagetosum and Sphagno-Piceetum molinietosum
were analysed that. Their plant cover, soil profiles and soil acidity were
examined as a baseline study on six permanent plots, situated along the
gradient of decreasing air deposition. Prevailing soil types were leptic, humic
and gleyed podzols. In 1995, B2 horizons were found strongly acid (pHaq between
4.3 and 3.9), and FH horizons were strongly to very strongly acid (pHaq between
2.7 and 3.9). This soil acidity differed from that referred in the same region
by Matuskiewiczs 35 years ago. In plants, three kinds of long-term responses
were distinguished. (1) Abundance of species with most roots in the uppermost
horizon was related to the opening of the tree canopy in declining forests
(increase of Deschampsia flexuosa, retreat of bryophytes Polytrichum
formosum, Sphagnum girgensohnii, Dicranum scoparium). (2)
Acidophilous forbs (Homogyne alpina, Trientalis europea,
Oxalis acetosella and Maianthemum bifolium) with most roots in
the strongly acidified FH horizon became less frequent. (3) In keystone species
with root system reaching down to B horizon their reaction was not related
linearly to the forest damage and/or soil acidity (e.g., expansion of
Calamagrostis villosa partly due to its facultative endomycotrophy
and/or both dieback-and-increase of Vaccinium myrtillus).
Palice Z. (1999): New and noteworthy records of
lichens in the Czech Republic. - Preslia, Praha, 71: 289-336.
A
commented overview of selected new and noteworthy lichens collected especially
at the territory of the Czech Republic is given. A few remarkable collections
from other European countries (Austria, France, Germany, Romania, Russia,
Slovakia, Sweden) are also included. Apart from lichens, several lichenicolous
and non-lichenized fungi traditionally treated by lichenologists (e. g. some
species of the polyphyletic order Caliciales s. l.) are also included in
the list. The vast majority of the mentioned species was collected in the
Šumava Mts - a highly forested area ranging along the border with Austria and
Germany - at present one of the most preserved regions in the Czech Republic.
Several findings are interesting from the lichenogeographical point of view (e.
g. Agonimia allobata, Anzina carneonivea, Bacidia
carneoglauca, B. viridifarinosa, Chaenotheca sphaerocephala,
Fellhaneropsis myrtillicola, Japewia subaurifera, Melaspilea
granitophila, Micarea anterior, M. contexta, M.
deminuta, M. lapillicola, M. marginata, M. vulpinaris,
Polyblastia gothica, Porina hibernica, Porpidia
ochrolemma, Rinodina interpolata, Scoliciosporum curvatum,
S. schadeanum, Trapeliopsis glaucolepidea etc.). Some of the
treated lichens are probably undercollected to a great degree (e. g.
Anisomeridium nyssaegenum, Arthonia muscigena, Caloplaca
obscurella, Micarea botryoides, M. myriocarpa, M.
polycarpella, Psilolechia clavulifera and taxa of the genera
Absconditella, Macentina, Vezdaea etc.). Altogether 82
taxa are discussed, of which 53 are new for the Czech Republic, of which 10 are
new for Central Europe (Absconditella pauxilla, Chaenotheca
sphaerocephala, Chaenothecopsis epithallina, C. nigra,
Japewia subaurifera, Micarea contexta, M. deminuta, M.
lapillicola, M. marginata, M. vulpinaris). Furthermore, some
of the collections included represent other new country records. The following
species are presumably reported for the first time from the respective
countries: Absconditella celata (Slovakia), Agonimia allobata
(Slovakia), Catillaria alba (Slovakia), Chaenotheca
sphaerocephala (Romania), Fellhaneropsis vezdae (Slovakia),
Hypocenomyce leucococca (Romania), Macentina dictyospora
(Slovakia), Micarea hedlundii (Slovakia), Micarea lynceola
(France), Micarea myriocarpa (Austria), Micarea polycarpella
(Sweden), Micarea vulpinaris (Germany), Porina leptalea (Sweden),
Scoliciosporum curvatum (Romania, Slovakia), and Trapelia
corticola (Romania). The following new combination - Micarea
lynceola (Th. Fr.) Palice comb. nov. is proposed. Trapeliopsis
percrenata is here considered to be conspecific with T.
glaucolepidea.
Mártonfi P., Michálek J., Hadinec J., Mártonfiová L.
& Repčák M. (1999): Hypericum dubium Leers - a new species of the
Czech flora. Preslia, Praha, 71: 337-348.
A new species of the Czech flora, Hypericum dubium Leers (= H.
maculatum subsp. obtusiusculum (Tourlet) Hayek) was found in the
Doupovské hory Mts., in the northwest of the Czech Republic. Besides
morphological description, karyological (2n = 32), chemical and chorological
data (especially for the Czech Republic and Hungary) are given. The find means
a shifting of species distribution limits eastwards north from 50° of the
northern latitude.
Chrtková A. & Jarolímová V. (1999):
Cytotaxonomical study of Caltha palustris. - Preslia, Praha , 71: 349-
360.
Authors have divided the populations of Caltha palustris L. from the
Czech Republic into four subspecies: subsp. cornuta (Schott, Nyman et
Kotschy) Hegi with 2n = 32 chromosomes, subsp. laeta (Schott, Nyman et
Kotschy) Hegi with 2n = 32 (34) in lowland and with 2n = 56 (57, 58, 59, 61,
64) in mountains, subsp. palustris with 2n = 32 (34, 35, 36)
chromosomes, and subsp. procumbens (Beck) Neumayer with 2n = 56 (55, 57,
59, 56 + 6B) chromosomes. The chromosome numbers of 2n = 32, 44, 47 were also
found in some intermediates. Chromosome counts for 88 samples are presented.
Great variation in morphological features were found in all subspecies.
Morphological characters are independent of each other, ecological conditions
influence some of their values. Results are given for plants in wild, in
herbaria and for 129 samples cultivated in an experimental field.
Tan Kit & Strid A. (1999): Phytogeographical notes
on the Parnonas range in Peloponnisos, Southern Greece. - Preslia, Praha, 71:
361-367.
Some phytogeographical notes on the Parnonas mountain range in the
Peloponnese, southern Greece are provided. They include mention of
phytogeographical elements, the high incidence of endemism and taxa widely
disjunct in distribution. It is noted that many Central European and Balkan
species have their southernmost localities on Parnonas. The floristic
connections between Parnonas and nine other Greek mountains are demonstrated
and a brief account of earlier floristic exploration in the area given.
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