Revision der Familie HippocardiidaePojeta & Runnegar, 1976 (Mollusca; Rostroconchia)

Following the revision and integration of the family PseudobigaleaidaeHoare, Mapes &; Yancey into the existing systematic concept of the rostroconch order Conocardiida the original family of hood-carrying rostroconchs, the HippocardiidaePojeta &; Runnegar, is revised and subdivided in this contribution. Here, we present the members of the subfamily HippocardiinaePojeta &; Runnegar [n. subfam.]. Its erection appeared necessary first, as the family Hippocardiidae had been used for decades as a conglomeration taxon where most varied morphotypes were assigned to the type genusHippocardia, whose character combinations only just now can be distinguished, and secondly because the number of hood-carrying hippocardiid rostroconch taxa increased markedly during our studies. Ten taxa at the species level are assigned to the generaHippocardia Brown, 1843,Bieberiana n. gen.,Cartericardia n. gen.,Fraipontia n. gen.,Hoareicardia n. gen. andPojetorum n. gen. All the taxa are precisely diagnosed and described at the subfamily, genus and species level by a uniform, revised and completed terminology of morphologic characters. This allows comparability of the taxa and aids in the reconstruction of phylogenetic relationships in the Hippocardiinae [n. subfam.], whose members occur from the Late Silurian until the Mississippian.     

Taxonomie und Systematik der HippocardioideaPojeta & Runnegar, 1976 [n. superfam.] (Mollusca; Rostroconchia)

The revisions of the families PseudobigaleaidaeHoare, Mapes &; Yancey, 2002 and HippocardiidaePojeta &; Runnegar, 1976 led to the introduction of a new taxon at the superfamily rank in order to unite the two families and distinguish them from the members of the Conocardiidae and Bransoniidae within the order Conocardiida. The autapomorphy of this new superfamily HippocardioideaPojeta &; Runnegar, 1976 [n. superfam.] — the more or less uniform development of at least one hood — is considered taxonomically as so important that we exclude a common ancestry of the almost contemporaneously occurring taxa of the Hippocardiidae, Pseudobigaleaidae on the one hand and the Bransoniidae sensuPojeta &; Runnegar on the other. The family Hippocardiidae is divided into six taxa on subfamily rank, the HippocardiinaePojeta &; Runnegar, Babinicardiinae n. subfam., Barrandeicardiinae n. subfam., Bohemicardiinae n. subfam., Goticardiinae n. subfam. and Hassiacardiinae n. subfam. At the species level, 13 taxa are assigned to the generaBabinicardia n. gen.,Barrandeicardia n. gen.,Bohemicardia n. gen.,Filicardia n. gen,.Globocardia n. gen.,Goticardia n. gen.,Pohlia n. gen. andHassiacardia n. gen. Additionally, the speciesGoticardia kauffmannii n. gen. n. sp. is introduced, whereas the primary homonymy of ?Conocardium“reticulatum Babin, 1966 is retained, because this taxon remained inassignable to any of the existing genera, but is considered as a member of the Hippocardiidae. The revised family Hippocardiidae occurred stratigraphically from the Middle Silurian (Wenlockian) until Mississippian time; members of the new superfamily Hippocardioidea are known from the Ordovician until the Pennsylvanian.     

The trilobiteProtostygina and the composition of the Styginidae, with two new genera

The Styginidae is regarded as an exclusively Ordovician family of trilobites, separate from the Scutelluidae. The hitherto poorly known genusProtostygina Prantl &P?ibyl, 1949 is revised. It is recorded with certainty only from the Llanvirn of the Czech Republic, and the type species is a senior synonym of“Raymondaspis” rubensi rubensi P?ibyl &VANěK, 1968 and“R.” rubensi lybar ?najdr, 1976. Two new styginid genera are proposed:Cyrtocybe, with type species“Raymondaspis” turgida Whittington, 1965, is known from the upper Arenig and lower Llanvirn of Newfoundland, Maine and Norway; andPromargo, with type speciesP.forteyi n. sp., occurs in the Arenig of Newfoundland and Spitsbergen.Turgicephalus Fortey, 1980 is regarded as a junior synonym ofRaymondaspis P?ibyl inPrantl &P?ibyl, 1949. Three genera are excluded from the Styginidae:Kirkdomina Tripp, 1962,Pseudostygina Zhou inZhou et al., 1982 andStyginella P?ibyl &Vaněk, 1971.     

Ein Beitrag zur Nomenklatur sphinctozoider Schwämme (Porifera)

The sphinctozoid sponge generaFania Senowbari-Daryan 1990 andSpica Termier &Termier 1977 are preoccupied.Fania is replaced byFanthalamia nom. nov. andSpica by the younger synonymFistulispongia Termier &Termier 1977. The invalid subfamily name FaniinaeSenowbari-Daryan 1990 is replaced by Fanthalamiinae n. subfam. The invalid family and subfamily names SpicidaeTermier &Termier 1977 and SpicinaeSenowbari-Daryan 1990 respectively are replaced by FistulispongiidaeTermier atTermier 1977 and FistulispongiinaeSenowbari-Daryan 1990. The generaWaagenium de Laubenfels 1957 andCatubria Merla 1931 were previously overlooked.Waagenium DeLaubenfels 1957 is a younger synonym ofColospongia Laube 1865. The position ofCatubria Merla 1931 is uncertain. Most probablyCatubria is an alga.     

Neue oder wenig bekannte Flechten in der Tschechoslowakei. II

Als Vorarbeit zu einer Flechtenflora der Tschechoslowakei wird der zweite Beitrag oorgelegt, in dem 25 Arten und 2 Gattungen taxonomisch, chorologisch und ökologisch behandelt werden; drei Arten (Caloplaca isidiigera, Forssellia umbilicata undLecanora chalcophila) und eine Gattung (Polysporina) werden als neu beschrieben; eine Emendierung der GattungScoliciosporum Massalongo wird durchgeführt und ein Bestimmungsschlüssel der besser bekannten europäischenScoliciosporum-Arten zusammengestellt. Zehn neue Kombinationen werden vorgeschlagen:Huilia musiva (Koerb.) comb. n. var.subsquamescens (vězda) comb. n.,Gyalidea diaphana (Koerb.) comb. n.,Polysporina simplex (Dav.) comb, n.,P. cyclocarpa (Anzi) comb. n.,P. dubia (H. Magn.) comb. n.,Scoliciosporum chlorococcum (Stenh.) comb. n.,Sc. pruinosum (P. James) comb. n.,Sc. sarothamni (Vain.) comb., n. undSc. schadeanum (Erichs). comb. n.     

Redescription of the largest trigonotarbid arachnid —Kreischeria wiedei Geinitz 1882 from the Upper Carboniferous of Zwickau, Germany

Kreischeria wiedei Geinitz 1882 (Arachnida: Trigonotarbida) from the Upper Carboniferous (Westphalian D) of Zwickau, Germany is redescribed. The family KreischeriidaeHaase 1890 is reinstated and rediagnosed to accomodate this species. We provisionally refer the speciesAnzinia thevenini (Pruvost 1919),Gondwanarachne argentinensis Pinto &Hünicken 1980,Hemikreischeria geinitzi (Thévenin 1902),Pseudokreischeria pococki Gill 1924 andPseudokreischeria varia Petrunkevitch 1949 to Kreischeriidae too.     

Flechtensystematische Studien VII.Gyalideopsis,eine neue Flechtengattung

Die beschriebene GattungGyalideopsis gen. nov. umfasst vier bisher festgestellten Arten:G. peruviana Merr. exVězda sp. n.,G. anastomosans P. James etVězda sp. n.,G. athalloides (Nyl.) Vězda comb. n. undG. muscicola P. James etVězda sp. n. Die Einreihung der GattungGyalideopsis in die FamilieAsterothyriaceae (sensuSantesson) sowie die systematische Stellung dieser Familie werden kurz behandelt.     

Polyploidy and variation in theCampanula rotundifolia complex. Part II. (Taxonomic) I. Revision of the groupsSaxicolae,Lanceolatae andAlpicolae in Czechoslovakia and adjacent regions

A survey is given of three natural groups of the subsectionHeterophylla (Witas.)Fed. of the genusCampanula L. Within theSaxicolae four taxa of higher rank have been revealed:c. xylocarpa Kovanda (2n=34),C. gentilis Kovanda (2n=34),C. moravica (Spitzner)Kovanda subsp.moravica (2n=68), andC. moravica subsp.xylorrhiza (O. Schwarz)Kovanda (2n=102). BothAlpicolae andLanceolatae are represented by a single species: the first byC. cochleariifolia Lam. (2n=34), the latter byC. serrata (Kit. ap.Schult.)Hendrych (2n=34). Cytology, ecology and geographical distribution of all these taxa have been reviewed, and relationships to the other members of the complex discussed. Infraspecific variation within each species has also been examined.     

Eine neue Gattung der Familie LechritrochoceratidaeFlower 1950 (Nautilida,Cephalopoda) aus einem „mittelsilurischen“ Geschiebe von Norddeutschland

The new genus and speciesGrzegorzewskia erratica n.gen. n.sp. from a “Mid-Silurian” erratic boulder of the locality “Brodtener Ufer” (at the shore of the Baltic Sea) near Travemünde, Germany, is described. It is attributed to the family LechritrochoceratidaeFlower inFlower &Kümmel 1950 (Nautilida) which is characterized by dextrally coiled torticone conchs. The new genus and species is distinguished from all other members of the family by its smooth surface, the depressed conch section, and the formation of a ventral rounded keel, as well as by the initial part of the conch which deviates extremely from the axis of coiling. The early ontogenesis of the Lechritrochoceratidae is briefly discussed.     

A new polyploidScilla (Liliaceae) from the Cretan area (Greece)

Scilla talosii Tzanoudakis etKypriotakis from the islet of Dia is described as a new species. It is an autumn-flowering taxon related toScilla autumnalis L. andS. obtusifolia Poiret but distinct morphologically and cytologically from both these taxa.S. talosii is polyploid with 2n=ca. 150 chromosomes.     

Lower Cambrian tubular micro-to macrofossils from the Paseky Shale of the Barrandian area (Czech Republic)

The carbonaceous megafossil (mega-alga)Marpolia spissa Walcott 1919 is described from the Early Cambrian of the Barrandian area for the first time. Macroscopic remains of colonies ofM. spissa are compared with tubular microfossils of the same rocks. Different areas in colonies ofM. spissa are assignable to several (part-based) genera and species of microfossils. Therefore, the microfossil taxaSiphonophycus robustum (Schopf 1968)Knoll et al. 1991,S. typicum (Hermann 1974)Butterfield 1994,S. kestron Schopf 1968,S. capitaneum Nyberg &Schopf 1984,Polytrichoides lineatus Hermann 1974, emend.Knoll et al. 1991,Tortunema angusta (Kolosov 1984)Butterfield 1994 andTortunema wernadskii (Schepeleva 1960)Butterfield 1994 should only be used as form-species in the sense of an artificial taxonomy. The palaeoenvironment of the Paseky Shale and the biological assignment ofMarpolia spissa are discussed.     

Flechtensystematische Studien IX. Die GattungRamonia Stiz. Zusätze 2

Ramonia micrococca Vězda sp. n. undR. stipitata Vězda etH. Hertel sp. n. werden als neue Arten beschrieben. Das Typenmaterial vonRamonia leptospora (Müll. Arg.) Vězda comb. n. wird näher beschrieben. Die Identität vonMaronea porinoidea Zahlbr. 1935 mitRamonia valenzueliana (Mont.) Stiz. wird nachgewiesen. Ein neuer Fund vonR. luteola Vězda wird ange-führt und eine eingehende Beschreibung vonR. chrysophaea (Pers.) Vězda vorgelegt.     

Hybridization studies inSilene subgen.Petrocoptis (Caryophyllaceae)

Silene subgenusPetrocoptis comprises sexual diploid taxa and it is restricted to calcareous cliffs in the Iberian peninsula. Artificial crosses involvingSilene pyrenaica (Bergeret)Mayol etRosselló (≡Petrocoptis pyrenaica (Bergeret)Walp.),Silene laxipruinosa Mayol etRosselló andS. montserratii subsp.crassifolia (Rouy)Mayol etRosselló (≡P. crassifolia Rouy) were attempted to assess the extent of barriers developed within the subgenusPetrocoptis. Usually, intraspecific crosses involving allopatric populations were successful, suggesting that geographically isolated populations are not genetically isolated. Cross-compatibility was noted among the polymorphicS. pyrenaica, which developed fertile F₁ hybrids. All other interspecific crosses failed due to cross- or seed-incompatibility. Crossing results agree with available evidence supporting the merging of segregates ofS. pyrenaica within a single taxon.     

Phytosociological nomenclature and typification of names of heathland syntaxa from W Europe (classCalluno-Ulicetea)

The correct names, author citations and nomenclatural types of the syntaxa names are established for the principal ranks above the association. These syntaxa areUlicion minoris Malcuit 1929,Ericion umbellatae Br.-Bl., P. Silva, Rozeira etFontes 1952,Genisto-Vaccinion Br.-Bl. 1926,Ulicetalia minoris Quantin 1935 andCalluno-Ulicetea Br.-Bl. etR. Tx. 1943