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1.
The presence of the genusEridoconcha Ulrich & Bassler 1923 (Eridostraca) is reported for the first time from the Lower Paleozoic sediments of Germany. The three speciesE. spinosa n. sp.,E. papillosa n. sp., andE. cf.rugosa Ulr. & Bassl. are described from the Lower Middle Devonian of eastern Thuringia.  相似文献   

2.
To the most recent revisions of the family HippocardiidaePojeta &; Runnegar (Rostroconchia, Mollusca) the additional, monotypic genusRheiacardia n. gen. is added. The genus belongs to the recently described subfamily HippocardiinaePojeta &; Runnegar and is unambiguously classified and characterized by differentiation from the previously described genera of the subfamily.Rheiacardia n. gen. has a stratigraphic occurrence from Early to Middle Devonian.  相似文献   

3.
The following genera are redefined:Albatrellus S. F. Gray,Heterobasidion Bref.,Haploporus Bond. et Sing. ex Sing.,Fomitopsis P. Karst. andRigidoporus Murrill two new subgenera are described:Polyporus subgen.Dendropolyporus Pouz. (type:Polyporus umbellatus) andRigidoporus subgen.Neooxyporus Pouz. (type:Polyporus latemarginatus); the genusOxyporus (Bourd. etGalz.)Donk is classified as a subgenus of the genusRigidoporus,Murrill and the generaBjerkandera P. Karst. andLeptoporus quél. are classified as subgenera of the genusTyromyces P. Karst. The new subfamilyAlbatrelloideae Pouz. (genera:Albatrellus andGrifola) is described and 14 new specific combinations are made. The new genusIrpicodon Pouz. (type:Irpex pendulus) is proposed.  相似文献   

4.
Proschizophoria Maillieux is restudied and found to be related to the Silurian genusIdiorthis McLearn and a new genusCordatomyonia, type speciesCordatomyonia shupei, n. sp.Proschizophoria, Idiorthis, andCordatomyonia are united in the new subfamily Proschizophoriinae which is assigned to the dalmanellid family Rhipidomellidae. Rhipidomellidae and its included subfamilies Heterorthinae, Rhipidomellinae, and Proschizophoriinae are emended and newly diagnosed. A new dalmanellid genus,Megasalopina, is proposed for the Lower Devonian species“Dalmanella” elevata Williams & Breger and its allies. It is thought to have been derived from the draboviinid genusSalopina Boucot and therefore belongs to the Schizophoriidae.Dalmanellopsis Khalfin is removed from the synonymy ofLevenea and is shown to be related toSalopina.  相似文献   

5.
The region of Iran, Iraq, Afghanistan and the neighbouring countries is important for some groups of the speciesLotus L., especially those of the circle ofL. corniculatus L. andL. gebelia Vent. The first group is represented by the speciesL. corniculatus L. with 4 subspecies (3 of which are important for this region), andL. tenuis Waldst. etKit. which here attains the eastern boundary of the continuous area of distribution, and by the eastern speciesL. krylovii Schischk. etSerg. andL. rechingeri Chrtková-?ertová. The second group is represented by the speciesL. gebelia Vent.,L. michauxianus Ser. in DC. andL. libanoticus Boiss. their areas of distribution covering mostly those regions. Most of the species show considerable variability within the species.  相似文献   

6.
The new genusViriatellina Bou?ek, 1964 unites the two older species namedNovakia gemündina Runzheimer, 1932 andTentaculites fuchsi Kutscher, 1931. ThusViriatellina gemuendina (Runzheimer) is cancelled, on the other handViriatellina fuchsi (Kutscher) remains valid. RecentlyViriatellina fuchsi (Kutscher) has been found in the tentaculitiferous limestone of Thuringia.  相似文献   

7.
The type specimen ofGonioloboceras goniolobum (Meek), rediscovered by Spath in the British Museum, is the foundation for a more accurate comparative study of this and other species ofGonioloboceras.Gonioloboceras described asG. goniolobum byElias in 1938 is differentiated asGonioloboceras schmidti, new species. Suture sets (new term) for several growth stages inG. goniolobum (Meek),G. welleriSmith,G. schmidtiElias, G.eliasiMiller &Owen, andG. asiaticumLibrovitch are assembled and used for differentiation of the species.The Kazakhstan goniatite faunule containingG. asiaticum is considered of very late Pennsylvanian age.  相似文献   

8.
Chromosome numbers of the Czechoslovak species of the genusLotus, from various localities have been determined. The paper includes the speciesLotus uliginosus Schkuhr,L.tenuis Waldst. etKit. andL. borbásii Ujhelyi.  相似文献   

9.
Im Artikel wird die ursprüngliche Gattungsdiagnose derGyalidea Lett. um die Merkmale der Pilzkomponente ergänzt. Die angenommenen verwandtschaftlichen Beziehungen derGyalidea zu der FamilieAsterothyriaceae werden diskutiert. Alle bisher festgestellten Arten mit Übersichten der revidierten Proben werden kurz beschrieben. Neue Taxa und Kombinationen:Gyalidea dodgei spec. n.,G. epiphylla spec. n.,G. mayaguezensis spec. n.,G. portoricensis spec. n.,G. fritzei (Stein) comb. n.,G. fritzei var.rivularis (Eitn.) comb. n.,G. hyalinescens (Nyl.) comb. n.,G. lecideopsis var.convarians (Nyl.) comb. n.,G. lecideopsis var.stigmatoides (Nyl.) comb. n.,G. mexicana (B. de Lesd.) comb. n. undG. subscutellaris (Vězda) comb. n.  相似文献   

10.
The paper sums up the information which the author has so far collected about the habitats and phytocenotic conditions of the glacial relics ofScorpidium scorpioides (Hedw.) Limpr.,Calliergon trifarium (Web. etMohr.) Kindb.,Paludella squarrosa (Hedw.) Bred., andMeesia triquetra (Hook. etTayl.) Aongstr. in the Highlands ?eskomoravská vrchovina (Bohemian-Moravian Highlands) in Czechoslovakia. Simultaneously, it presents a survey of the localities in which the occurrence of these species has been ascertained up to now.  相似文献   

11.
The paper sums up the information which the author has so far collected about the habitats and phytocenotic conditions of the glacial relics ofScorpidium scorpioides (Hedw.) Limpr.,Calliergon trifarium (Web. etMohr.)Kindb.,Paludella squarrosa (Hedw.) Brid., andMeesia triquetra (Hook. etTayl.)Aongstr. in the Highlands ?eskomoravská vrchovina (Bohemian-Moravian Highlands) in Czechoslovakia. Simultaneously, it presents a survey of the localities in which the occurrence of these species has been ascertained up to now.  相似文献   

12.
The anomalous atrypid brachiopod genusKerpina Struve (family AtrypidaeGill) is restricted in distribution to Eifelian (Middle Devonian) rocks of the Eifel region, Germany, and is found associated with, or attached to, the platy tabulate coralAlveolites. Both coral and brachiopod appear to be characteristics of a currentagitated shallow water environment. The marked variation in shell shape and beak incurvature, as well as the unique internal morphology of the type speciesKerpina vineta Struve are described for the first time.  相似文献   

13.
Flow cytometry was used to determine ploidy levels in the Czech and Slovak taxa of the genusPseudolysimachion (W.D.J. Koch)Opiz (=Veronica auct. p.p.,Scrophulariaceae). In total, 123 populations from the Czech Republic, Slovakia, Ukraine (one locality), Austria (one locality) and Hungary (one locality) were analyzed. InP. maritimum (L.)Á. Löve etD. Löve andP. spicatum (L.)Opiz, two cytotypes were found: diploid (2n=2x=34) and tetraploid (2n=4x=68). In both species the tetraploid cytotype predominated (P. maritimum: 41 tetraploid populations out of 45;P. spicatum: 57 tetraploid populations out of 58). The two cytotypes ofP. maritimum have no taxonomic significance because ploidy level is not obviously correlated with morphology, distribution pattern or ecology. Tetraploid populations ofP. spicatum belong to two morphologically different subspecies, subsp.spicatum and subsp.fischeri Trávní?ek. The diploid cytotype (one population only) should be provisionally classified as a third subspecies ofP. spicatum, which is morphologically similar to the Asian subsp.porphyrianum (Pavlov)Trávní?ek. Only diploid plants (2n=2x=34) ofP. orchideum (Crantz)Wraber were found; all 13 populations that were analyzed belong toP. orchideum s.str. One diploid population sample ofP. spurium subsp.foliosum (Waldst. etKit.)Holub (2n=2x=34) and one tetraploid sample ofP. incanum subsp.pallens (Host)Trávní?ek (2n=4x=68) were also analyzed. In addition, three tetraploid populations of hybrid origin were investigated:P. maritimum ×P. spicatum subsp.spicatum (one population) andP. maritimum ×P. spurium subsp.foliosum (two populations). While hybrid plants ofP. maritimum ×P. spicatum arose from tetraploid parental species, plants ofP. maritimum ×P. spurium probably resulted from a cross between tetraploidP. maritimum and diploidP. spurium. The putative origin and evolutionary importance of polyploids in thePseudolysimachion are discussed.  相似文献   

14.
In the Lower Plattenkalk of Bergisch Gladbach occur, besides the well known?Hians”-beds, polymictic accumulations of shell material. Together with the valves ofMartinia inflata (Schnur),Uncinulus parallelepipedus (Br.) andIsopoma brachyptyctum (Schnur) are great numbers ofSpinatrypa tubaecostata (Paeck.) andAtrypa prisca gladbachensis n. subsp. In spite of the fact that the host rock was deposited as shell debris, in particular the rhynchonellids and atrypids are easily separated from it in a well preserved state. Atrypa (Desquamatia) prisca gladbachensis n. subsp. is commonly found with its alations intact. This subspecies, which is here described in some detail, fluorisched on a marly ooze bottom. The expanded valves increased the food gathering field, while the alations, surrounding the shell margin almost like a flange, functioned as effective particle filters. Because of this, the free valves floated under wave attack and became fossilized almost undamaged. The brachiopod shells and the organoplastic debris were washed on to discontinuity surfaces which probably had already been lithified by algal growth.  相似文献   

15.
The Bohemian speciesAnetoceras solitarius (Barrande 1865) is re-described, including the TurkishA. barrandei (De Verneuil 1866). The other Bohemian species areA. aff.advolvens Erben 1960 and?A. fritschi (Barrande 1877). A new speciesA. recticostatum n. sp. is described from the German Lower Devonian, and several still problematical species of the genus are discussed. Finally, the supposed phylogenetic position and the relations ofAnetoceras are pointed out. The Upper SiegenianA. hunsrueckianum Erben 1960 is regarded as most primitive coiled ammonoid and as connecting link between the bactritids, and early coiled ammonoids.Mimosphinctes Eichenberg is considered to be a descendant fromAnetoceras.  相似文献   

16.
Continuing cytotaxonomic research in the generaCyamopsis andIndigofera, this time with attention payed for the greater part to East Tropical African species yielded the following results:
  1. 1.
    Except for four rather small subsections ofIndigofera proper and the related genusRhynchotropis Harms, information was obtained about all Taxa. Of the 283 species described inGillett'ss monograph, some 80 species, among them a few with subspecies and varieties, now have been cytologically examined.  相似文献   

17.
Five new species and two varieties from the sectionMultifidae are described from the Sino-Himalayan region. They are referred to the affinity ofP. multifida L. andP. griffithii Hook. f.; one of the new species is probably related toP. gerardiana Lindl. and one is intermediate between the species of the sectionsMultifidae andNiveae.  相似文献   

18.
Both quantitative and qualitative immunochemical methods were used for studying the mutual relationships of several spocies and the subspecies of the genusPhaseolus: Ph. vulgaris L. ssp.vulgaris, Ph. vulgaris L. ssp.aborigineus Burk.,Ph. coccineus L.,Ph. acutifolius A. Gray,Ph. lunatus L. (American endemites) andPh. aureus L. (a typical Asian bean). Protein characters of cotyledons (i.e., ?storage” proteins) of the above species were compared with the aid of antisera prepared against seed (cotyledon) proteins ofPh. vulgaris L. ssp.vulgaris, cv. Veltruská Saxa, using
  1. (a)
    the whole complex of cotyledon protein,  相似文献   

19.
Some species ofAsterigerina are described and discerned, as they occur in different levels of the sequence from Eocene to Miocene in northwestern Germany.Asterigerina bartoniana (Dam) in the Eocene is followed byAsterigerina rotula haeringensis Lühr andAsterigerina brandhorstiana n. sp. in the Lower Oligocene (sensuBeyrich).Asterigerina gürichi gürichi (Franke), typical for the lowermost part of sequences of Upper Oligocene age, is furnished with a lectotype out ofFrankes material. This species is substituted by the subspeciesAsterigerina gürichi staeschei (Dam & Reinhold) in the Miocene. The localities of Lower Oligocene in littoral facies near Bünde (Westfalia) are mentioned and described. (Localities “Brandhorst” resp. “Hof Fahrenkamp” and newer outcrops).  相似文献   

20.
Relationship between roots and shoots ofPimpinella saxifraga L.,Petroselinum hortense Hoffm.,Lactuca sativa L., andBeta vulgaris subsp.esculenta (Salisbury) Gürke var.altissima Roessig was studied in irrigated and non-irrigated plants. It was found that the irrigation water did not influence distinctly the root-shoot ratio of the experimental plants. From the statical point of view, this relationship could be expressed by the following quantitative ratios for irrigated and non-irrigated plants: 3∶1 forPimpinella saxifraga L., 2∶1 forPetroselinum hortense Hoffm., 9∶1 forLactuca sativa L., and 1∶1 for beetroot. From the dynamic point of view it is possible to state that this ratio changes in the course of individual development. With plants cultivated for their aerial parts, it increased with age, while with plants cultivated for their roots, it decreased with age. The irrigation water produced much greater morphological changes (the shape and the surface area) in the root and shoot system of experimental plants.  相似文献   

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