Annotated chromosome numbers of selected asiaticPotentilla species

Chromosome numbers are reported for 19 collections representing 16 AsiaticPotentilla taxa. The first chromosome records are reported forP. desertorum Bunge var.arnavatensis Wolf (2n=28),P. festiva Soják (2n=28),P. griffithii Hook f. subsp.beauvaisii (Cardot) Soják (2n=42),P. micropetala D. Don subsp.byssitecta (Soják) Měsí?ek etSoják (2n=14),P. mollissima Lehm. (2n=28),P. moorcroftii Wall. exLehm. (2n=42),P. multicaulis Bunge (2n=14),P. [x]omissa Soják (2n=35, 56, 70) andP. stanjukoviczii Ovcz. exKoczk. (2n=14). Counts differing from those previously recorded are given forP. algida Soják (2n=56) andP. flagellaris Willd. exSchlecht. (2n=42). Chromosome numbers of the following species were confirmed:P. [x]agrimonioides Bieb. (2n=42),P. chinensis Ser. in DC. (2n=14),P. fragarioides L. (2n=14),P. lineata Trev. (2n=14) andP. sericea L. (2n=28). Taxonomy is briefly discussed. A new combinationP. micropetala D. Don subsp.byssitecta (Soják) Měsí?ek etSoják stat. nov. is proposed.     

Nomenklatorische Anmerkungen zur GattungPotentilla

Für folgende inkorrekte Epitheta schlägt der Autor richtige Namen vor, die in Klammern angeführt sind:Potentilla opizii Dom. (=P. lindackeri Tausch),P. dealbata Bunge (=P. virgata Lehm.),P. poterioides Franch. (=P. limprichtii J. Krause),P. fulgens Wall. exHook. (=P. siemersiana Lehm.),P. labradorica Lehm. (=P. flexuosa Raf.),P. ambigua Camb. (=P. cuneifolia Bertol.),P. anserina ssp.egedii (Wormsk.) Hitt. (=P. anserina ssp.groenlandica Tratt.),P. raddeana (Wolf) Juz. (=P. bertramii Aznav.) undP. bipinnatifida Dougl. exHook. (=P. normalis Bess. exSpreng.). FürP. nudicaulis Boiss. etBal.,P. eremica Wolf undP. sericata Wolf werden nomina nova veröffentlicht. Es werden einige neue Kombinationen angeführt:P. supina L. ssp.paradoxa (Nutt. exTorr. etGray) c.n.,P. hispanica Zimm. ssp.oreodoxa (Soják) c. n. undP. h. ssp.ibrahimiana (Maire) c. n. Strauchige Arten, oft in die GattungPotentilla eingereiht, betrachtet der Autor als eine selbständige GattungPentaphylloides und in dieser Gattung führt er einige neue Kombinationen (5 für Arten, 4 für Hybriden) an.     

Studien über dieJungermannioideae (Hepaticae) 8.Jungermannia subg.Plectocolea und subg.Solenostoma in Australien,Neuseeland und Ozeanien

Die achte Studie über die SubfamilieJungermannioideae (Jungermanniaceae, Hepaticae) ist dén Arten der GattungJungermannia L. emend.Dum., die in Australien, Neuseeland und Ozeanien vorkommen, gewidmet. Die meist endemischen Arten, die auf Hawaii vorkommen, werden als eine selbständige (neunte) Studie bearbeitet. Im genannten Gebiet wurden 13 Arten der GattungJungermannia L. emend.Dum. festgestellt.J. (P.) hasskarliana (Nees) Steph.,J. (P.) obliquifolia (Schiffn.) Váňa,J. (P.) tetragona Lindenb.,J. (P.) hirticalyx Steph.,J. (P.) minutiverrucosa Amak.,J. (P.) wattsiana Steph.,J. (S.) ariadne Tayl.,J. (S.) totipapillosa Hodgs.,J. (S.) inundata Hook. fil. etTayl. emend.Mitt. undJ. (S.) orbiculata (Col.) Grolle sind eingehend taxonomisch bearbeitet,J. (P.) micrantha (Mitt.) Steph. wird in die nächste Studie eingereiht.J. (P.) boninensis (Horik.) Inoue wurde vonInoue (Inoue etIwatsuki 1969) eingehend beschrieben und abgebildet,Haplozia comptonii Pears. wurde schon im 2. Teil diskutiert. Die anderen aus dem Gebiet bekannten Arten sind mit den obenerwähnten Arten synonymisiert oder zu anderen Gattungen gestellt.     

Hybriden vonPyrus spinosa

Three hybrids are described whose common parent wasPyrus spinosa Forsk.: 1.Pyrus × bardoënsis Dostálek (P.elaeagrifolia Pall. ×P. spinosa Forsk.).—2.Pyrus × velenovskyi Dostálek (P.pyraster Burgsd. ×P. spinosa Forsk.).—3.Pyrus × jordanovii Dostálek (P. communis L. ×P. spinosa,Forsk.). Notes are given about five other hybrids whose existence has not been conclusively confirmed or which are less important.     

Notes on some African hepatic genera 1–5

The present study deals with five genera of hepatics in Africa, Isotachis Mitt., Anastrophyllum (Spruce) Steph., Tritomaria Schiffn. ex Loeske, Gymnocoleopsis (Schust.) Schust. and Lophozia (Dum.) Dum. All African populations of the genus Isotachis Mitt. are considered to be one species, I. aubertii (Schwaegr.) Mitt. Four species of Anastrophyllum (Spruce) Steph. (s.l.), A. auritum (Lehm.) Steph., A. piligerum (Nees) Spruce, A. subcomplicatum (Lehm. et Lindenb.) Steph. and A. minutum (Schreb.) Schust., and two species of Tritomaria Schiffn. et Loeske, T. camerunensis S. Arnell and T. exsecta (Schrad.) Schiffn. ex Loeske occur in Africa. Gymmocoleopsis multiflora (Steph.) Schust. represents a genus and species hitherto unreported for the African flora. Finally, five Lophozia (Dum.) Dum. species, L. argentina (Steph.) Schust., L. capensis S. Arnell, L. decolorans (Limpr.) Steph., L. hedbergii S. Arnell and L. tristaniana (S. Arnell) Váňa, are reported from central and southern Africa; two of these (L. argentina (Steph.) Schust. and L. decolorans (Limpr.) Steph.) represent the first reports from Africa.     

LignicolousHyphomycetes from Czechoslovakia 2.Bactrodesmium

Six species of the genusBactrodesmium M. C. Cooke are described in this paper from Czechoslovakia:B. betulicola M.B. Ellis,B. obovatum (Oudemans) M.B. Ellis,B. spilomeum (Berk. etBr.)Mason etHughes including three new speciesB. globosum Hol.-Jech.,B. pyriforme Hol.-Jech. andB. submoniliforme Hol.-Jech.     

Foraminifera from the Silberberg Formation («Lower Oligocene») at Silberberg,near Helmstedt (Germany)

From the Silberberg Quarry, type locality of the Silberberg Formation (Martini &Ritzkowski 1968), some planktonic foraminifera are described:Globigerina officinalis Subbotina, Globigerina ouachitaensisHowe &Wallace,G. praebulloides leroyi Blow &Banner, G.praebulloides occlusa Blow &Banner which taxa are here suggested to form intergrading morphotypes within the range of variation of a population dominated byG. officinalis. In addition,G. cf.danvillensis Howe &Wallace is found. The planktonic fauna, together with some elements in the benthonic fauna, suggests a possible correlation with the Danville Landing Member of the Jackson Formation, Louisiana, traditionally ascribed to the Upper Eocene. There is some similarity with European Uppermost Eocene — Lower Oligocene faunas described by various authors. The Silberberg Formation was suggested to be a Neostratotype for the Latdorfian Stage of the Lower Oligocene byMartini &Ritzkowski (1968). It is suggested that the Silberberg Formation may well be coeval with the Upper Priabonian as proposed byCita 1969.     

LignicolousHyphomycetes from Czechoslovakia 6.Spadicoides andDiplococcium

Seventeen species belonging toSpadicoides Hughes andDiplococcium Grove collected in Central Europe mostly in Czechoslovakia are described and illustrated. Two new species are described inSpadicoides—S. carpatica Hol.-Jech.,S. penatium Hol.-Jech. and three new species inDiplococcium—D. bicolor Hol.-Jech.,D. insolitum Hol.-Jech. andD. parcum,Hol.-Jech.     

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.     

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.     

LignicolousHyphomycetes from Czechoslovakia 5.Septonema,Hormiactella andLylea

Three genera of lignicolousHyphomycetes Septonema Corda,Hormiactella Saac. andLylea Morgan-Jones are discussed. Illustrations and determination keys are provided. Five species ofSeptonema—S. fasciculare (Corda) Hughes,S. leptaleum (Ellis & Harkn.) Hughes,S. pinicola Hol.-Jech.,S. secedens Corda andS. laricium Hol.-Jech.—and two species ofHormiactella—H. fusca (Preuss) Sacc. andH. asetosa Hol.-Jech.—have been found in Czechoslovakia. A new speciesS. pseudobinum Hol.-Jech. is described from Romania.Septonema tetracoilum (Corda Hughes is accommodated in the genusLylea Morgan-Jones.     

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.     

Studien über dieJungermannioideae (Hepaticae) 6.Jungermannia Subg.Solenostoma: Europäische und nordamerikanische Arten

Dersechste Beitrag aus der Serie der vorbereiteten Studien über die SubfamilieJungermannioideae (Jungermanniaceae, Hepaticae) enthält die taxonomische Bearbeitung des Subg.Solenostoma (Mitt.)Amak. (GattungJungermannia L. emend.Dum.) in Europa (inkl. Kaukasus und Kleinasien) und Nordamerika. Im genannten Gebiet kommen 10 Arten vor, u. zw.J. caespiticia Lindenb.,J. caucasica Váňa,J. confertissima Nees,J. gracillima Sm.,J. handelii (Schiffn.)Amak.,J. jenseniana Grolle,J. lignicola (Schiffn.)Grolle,J. pyriflora Steph.,J. rubra Gott. exUnd. undJ. sphaerocarpa Hook. Die ArtJ. confertissima Nees (bisher alsSolenostoma levieri (Steph.)Steph. bezeichnet) gehört zu der SektionDesmorhiza Amak., alle anderen Arten gehören zu der SektionSolenostoma.     

Scanning electron microscopic study of anamorphs of someBasidiomycetes in culture

The anamorphs in cultures ofLepista nuda (Bull.:Fr.)Cooke,Coprinus comatus (Müll.:Fr.)S.F. Gray,Fistulina hepatica Sohaeff.:Fr.,Pholiota adiposa (Fr.)Kumm. andAsterophora lycoperdoides (Bull.)S.F. Gray, an imperfect state ofNyctalis lycoperdoides (Bull.)Schroet., were studied by scanning electron microscopy. Arthroconidia were described inLepista nuda for the first time. Examination of the fine structure of dendroid forms inCoprinus comatus revealed why those structures were not propagative.     

LignicolousHyphomycetes from Czechoslovakia 8.Endophragmiella andPhragmocephala

Thirteen species and one variety ofEndophragmiella Sutton and three species ofPhragmocephala Mason etHughes collected by the author in Czechoslovakia, and occasionally in other regions of Europe are described and illustrated. Four new species and one new variety are described inEndophragmiella—E. aseptata Hol.-Jech.,E. fatrensis Holt.-Jech.,E. ramificata Hol.-Jech.,E. similis Hol.-Jech. andE. uniseptata (Ellis) Hughes var.pusilla Hol.-Jech..     

Potentilla L. sect.Rivales Wolf and related taxa in the Baltic states

Morphological variation ofPotentilla norvegica L.,P. heidenreichii Zimmeter andP. supina L. usually treated within the sectionRivales Wolf,P. recta L. (sect.Rectae Wolf),P. canescens Bess.,P. argentea L. s.l.,P. collina Wibel (sect.Argenteae Wolf) andP. goldbachii Rupr. (sect.Chrysanthae Wolf) was studied using multivariate statistical methods. According to k-means clustering,P. canescens stands closer toP. heidenreichii of the sect.Rivales than toP. argentea. P. collina, the other representative of sect.Argenteae, is not connected withP. canescens at all. Therefore,P. canescens should belong to sect.Rivales and not to sect.Argenteae. InPotentilla argentea s.l.,P. impolita Wahlenb.,P. argentea L. var.argentea, var.decumbens (Jord.)Lehm., var.demissa (Jord.) Lehm., var.grandiceps (Zimmeter) Rouy etE.G. Camus and var.tenerrima (Velen.) Wolf were identified.P. impolita specimens did not cluster out into a separate cluster as didP. collina, P. canescens andP. heidenreichii, but formed mixed clusters with different varieties ofP. argentea s.str. Therefore,P. impolita is not worthy of the rank of species and evidently not even that of subspecies, and should be treated as a variety—P. argentea var.incanescens (Opiz) Focke.