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Abstrakty/Abstracts

Zprávy České botanické společnosti 50/1, 2015


Abstrakty/Abstracts

Marek M., Lepší M. & Lepší P.
Peucedanum austriacum subsp. austriacum a Peucedanum austriacum subsp. rablense - dva nově objevené taxony pro květenu České republiky
Peucedanum austriacum subsp. austriacum and Peucedanum austriacum subsp. rablense - two taxa new to the Czech Republic

Abstract

Peucedanum austriacum subsp. austriacum is reported from the Czech Republic for the first time. The newly discovered population consists of ca 15,000 individuals and occurs in a semi-natural open ravine forest near Český Krumlov (South Bohemia). The origin of the locality is discussed in detail but remains unknown - both accidental introduction and native occurrence are possible. All literature records about the occurrence of P. austriacum s. l. in the Czech Republic are revised and are considered dubious. The only exception is a report from the 19th century about a temporary occurrence of the species near Hlubočepy (Prague). This record is based on a herbarium specimen which comprises an individual of P. austriacum subsp. rablense. This taxon has not been accepted in recent botanical compendia of the Czech flora. Peucedanum austriacum subsp. rablense was introduced either deliberately or accidentally at the locality near Hlubočepy. We describe the morphology of P. austriacum s. l. in comparison with similar species and provide brief information on its variability, ecology and distribution. A local distribution map of the species near Český Krumlov, photographs of herbarium specimens, plants in situ and line drawings of the species are included.

Hadinec J. & Lustyk P. [eds]
Additamenta ad floram Reipublicae Bohemicae. XIII.
Additions to the flora of the Czech Republic. XIII.

Abstract

This thirteenth part of floristic contributions includes newly published data of critically endangered species and data unpublished so far. The species Carex ×moravica and Sorbus pauca described from the Czech Republic as new to science, data of taxa newly discovered on the territory of the Czech Republic (Callitriche ×vigens, Pilosella fusca, P. norrliniformis and Verbascum ×duernsteinense) and data of alien species found in the Czech Republic for the first time (Geranium aequale, G. thunbergii, Panicum virgatum) are summarized. Also the recently found Sagina apetala, previously considered to be extinct from the Czech Republic, is included. Furthermore, criticaly endangered species (according to the Red List of Vascular Plants of the Czech Republic) are reported from new sites (e. g. Anacamptis pyramidalis, Botrychium matricariifolium, B. multifidum, Centunculus minimus, Chenopodium chenopodioides, Ch. urbicum, Conringia orientalis, Crepis setosa, Dactylorhiza incarnata, Echium maculatum, Epipactis moravica, E. pontica, Epipogium aphyllum, Eriophorum gracile, Filago vulgaris, Gentianella amarella, Geranium divaricatum, Juncus capitatus, Limodorum abortivum, Lindernia procumbens, Listera cordata, Lycopodiella inundata, Malaxis monophyllos, Marrubium peregrinum, Moneses uniflora, Nuphar pumila, Ophrys apifera, Orchis morio, Phyllitis scolopendrium, Plantago maritima subsp. ciliata, Pulicaria vulgaris and Typha shuttleworthii). Finally, less rare and threatened species are reported from areas where they had not been recorded yet (Asperula cynanchica, Chenopodium vulvaria, Coronopus didymus, Epipactis atrorubens, Lithospermum officinale, Monotropa hypophegea, Parietaria officinalis, Pyrola rotundifolia, Ranunculus arvensis and Viola rupestris).

Kovář P.
Floristické nálezy v Českomoravském mezihoří z exkurzí Katedry botaniky PřF UK z 90. let 20. století
Floristic records in the Českomoravské mezihoří hills from excursions of the Department of Botany, Charles University Prague from 1990s

Abstract

This contribution to the flora of ecologically heterogeneous Českomoravské mezihoří hills, Czech Republic, includes records of 394 plant species and/or subspecies from 120 localities. This set of regional floristic data was originally not intended for publication because of its origin from differently aimed projects. Field sampling was carried out during the 1990s. However, many changes in the landscape during the following twenty years have led us to publish these relatively old data. The specific character of student excursions focused primarily on community ecology, biotope naturalness and demonstration of habitats important for nature protection lead to discovery of several taxa (e. g. Carex sp., Rubus sp., Tetragonolobus maritimus, Cirsium heterophyllum, Veronica filiformis, etc.) interesting from this point of view. Comments on these species are summarised at the end of this contribution.

Zázvorka J.
Herbář Josefa Holuba
Josef Holub´s herbarium collection

Abstract

Josef Holub (1930-1999), one of the greatest figures of 20th century Czech botany, created a large herbarium collection of vascular plants during his life. The collection contains 80,502 specimens. The specimens were, however, only provided with provisional labels, written in almost illegible Holub´s handwriting. The entire herbarium collection had to be re-labelled, Holub´s original labels rewritten and collection sites localized more precisely using Holub´s field records and reports kept separately. J. Holub primarily gathered taxonomically difficult groups of plants, e.g. Rubus (8 000 collections consisting of 25,148 specimens), Crataegus (2,825), Carex (3,493) etc. J. Holub´s collection is now preserved in the herbarium of the Institute of Botany, Czech Acadamy of Sciences, Průhonice, Czech Republic (PRA). The collection will be available after classifying and integrating it into the main collection of the PRA herbarium.