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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.  相似文献   

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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.  相似文献   

4.
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..  相似文献   

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The species of three genera—Sporoschisma Berk. etBr.,Sporoschismopsis Hol.-Jech. etHennebert andCatenularia Grove are treated in this paper from Czechoslovakia:Sporoschisma juvenile Boudier,S. mirabile Berk. etBr.,Sporoschismopsis moravica Hol.-Jech. etHennebert andCatenularia cuneiformis (Richon) Mason. The studied fungi produce the conidia in basipetal succession, endogenously or subendogenously, quite internally in large phialides or only inside open swollen collarettes.  相似文献   

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On the basis of taxonomic and nomenclatural revisions of various plant groups 37 new nomenclatural combinations are proposed mostly for European phanerogamous taxa (21 for species, 14 for subspecies, 2 for hybrids.)Medicula Medicus,Pseudofumaria Medicus andThlasidia Rafin. are accepted as taxonomically justified genera and correct generic names.Dactylorhiza longebracteata (F. W. Schmidt)Holub is proposed instead ofD. fuchsii (Druce) Soó, andHylotelephium triphyllum (Haworth) Holub isstead ofH. purpureum (L.)Holub.  相似文献   

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Four species of the genusBrachysporium Sacc. emend.Mason etHughes are treated in this paper from Czechoslovakia:B. nigrum (Link)Hughes,B. obovatum (Berk.)Sacc. and two new species,B. abietinum Hol.-Jech. andB. brevius Hol.-Jech.  相似文献   

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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.  相似文献   

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The present study deals with African species ofSyzygiella Spruce,Allisoniella Hodgs. andGymnomitriaceae Klinggr. Three species ofSyzygiella Spruce,S. geminifolia (Mitt.) Steph.,S. concreta (Gott.) Spruce and one indeterminable species with orbicular leaves (known only in sterile condition) occur in Africa.Allisoniella nigra (Rodw.) Schust. represents a genus hitherto unreported for the African flora. The present knowledge ofGymnomitriaceae Klinggr. in subsaharan Africa is summarised; five species ofMarsupella Dum., one ofGymnomitrion Corda and five ofHerzogobryum Grolle are reported. Finally, some additions to the generaIsotachis Mitt.,Anastrophyllum (Spruce) Steph. andLophozia (Dum.) Dum. are presented.  相似文献   

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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.  相似文献   

12.
A fish from the early Oligocene (Rupelian) of Canton Glarus, Switzerland,Cryptobalistes brevis (Rath 1859), until now placed incertae sedis among triacanthoid tetraodontiforms, is shown to be a triacanthid. It is redescribed and compared with the only other known fossil triacanthids, these being the two species ofAcanthopleurus, also from Canton Glarus, and with the seven Recent species of four genera. All of these triacanthids share five derived features. The four Recent genera are in a clade defined by five synapomorphies, andCryptobalistes andAcanthopleurus form an unresolved trichotomy with that clade. Reconstructions of the three fossil species are provided.  相似文献   

13.
Nyananyo B. L. (1988): The systematic significance of seed morphology and anatomy in thePortulacaceae (Centrospermae).—Folia Geobot. Phytotax., Praha, 23: 275–279.—The seeds of 115 species in eighteen genera of the familyPortulacaceae were examined with the scanning electron microscope. Longitudinal sections of seeds of representatives of all the genera were examined with the light microscope. Two broad groups based on shape of the seeds, ornamentation of the external surface of their testa, and the position of the embryo relative to the endosperm were recognised. The first group comprising three genera:Anacampseros L.,Grahamia Gillies andTalinopsis A. Gray, have seeds which are pyriform with wings and trichomes, and an embryo that is more or less parallel to the endosperm, while the second of fifteen genera:Calandrinia H.B.K.,Calyptridium Nuttall,Calyptrotheca Gilg,Ceraria Pearson etStephens,Claytonia L.,Lenzia Philippi,Lewisia Pursh,Lyallia Hooker fil.,Montia L.,Portulaca L.,Portulacaria Jacquin,Silvaea Philippi,Talinella Baillon,Talinum Adanson, andWangerinia Franz, are reniform without wings and with an embryo that is horse-shoe shaped around the endosperm.  相似文献   

14.
A survey forAcyrthosiphon kondoi Shinji and its insect enemies was conducted in 1976–1977 in Afghanistan, Belgium, Czechoslovakia, Greece, Iran, Israel and Maroc. The search was concentrated in areas having cultivated species ofMedicago. A. kondoi was found only in Afghanistan, and in Iran. It was not found inMedicago-growing areas west from Iran, but it has been reported from India and Japan. Aphidius ervi Haliday,Aphidius urticae group,Praon barbatum Mackauer andAphidius smithi Sharma & Rao, were reared fromA. kondoi constituting new parasite records. New parasite and locality records were also found forA. urticae group,A. smithi andP. barbatum onAcyrthosiphum pisum (Harris). In laboratory trials, all cultures of parasitesA. ervi andP. barbatum readily parasitized and reproduced onA. kondoi onLens esculenta Moench. Cultures ofA. urticae group andA. smithi oviposited on, but did not complete development of immatures in,A. kondoi onL. esculenta. Hyperparasites identified as species includedAsaphes suspensus (Nees),Asaphes vulgaris Walker,Aphidencyrtus aphidivorus (Mayr),Dendrocerus breadalbimensis (Kieffer),Dendrocerus carpenteri (Curtis), andPachyneuron aphidis (Bouche). Available data suggest the origin of distribution ofA. kondoi may be Central Asia, and that populations ofA. ervi may be most suitable for colonization programs againstA. kondoi.  相似文献   

15.
In 74 natural populations of theMyosotis palustris andM. laxa groups from former Czechoslovakia three euploid and one aneuploid cytotypes were found that belong to the following species:M. nemorosa Besser, 2n=22,M. palustris (L.)Nath. em.Reichenb. inSturm, 2n=66,M. laxiflora Reichenb., 2n=66,M. radicans Opiz, 2n=66(64),M. brevisetacea (Schuster) Holub, 2n=66(64), andM. caespitosa C.F. Schultz, 2n=88. With the exception ofM. nemorosa, the chromosome numbers are published for the first time for the Czech Republic. The chromsome numbers, 2n=66, 2n=64 are found inM. brevisetacea, are new for the literature. The correlation between pollen size and ploidy level has been studied as well, and statistically significant differences were found between cytotypes belonging to different ploidy levels.  相似文献   

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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.  相似文献   

18.
Okoli B. E. etNyananyo B. L. (1988): Palynology ofTelfairia L. (Cucurbitaceae).—Folia Geobot. Phytotax., Praha, 23: 281–283.—Scanning and transmission electron microscopic studies were carried out on the pollen of the two species ofTelfairia, T. pedata (Sims.) Hooker andT. occidentolis Hooker fil. Pollen grains in both species are spheroidal, tricolporate and tectate. The extexine is finely reticulate. The tectum, foot layer and columellae are all well developed. Significant differences of taxonomic value do not exist in the structure of the pollen of the two species.  相似文献   

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In 1907, R. Markgraf made a small collection of Oligocene fossil primates from Egypt for the Staatliches Museum für Naturkunde in Stuttgart. Circumstances of discovery suggest that this collection came from the same stratigraphic horizon (the Upper Fossil Wood zone) and possibly the same locality as a similar collection made earlier that year byMarkgraf for the American Museum of Natural History in New York. Three new genera and species were described bySchlosser, based on the Stuttgart collection.Parapithecus fraasi Schlosser is a junior synonym ofApidium phiomense Osborn. “Parapithecus“grangeri Simons is placed in the new genusSimonsius. Propliopithecus haeckeli Schlosser andMoeripithecus markgrafi Schlosser have previously been recognized as synonyms. In addition,Aegyptopithecus zeuxis Simons is known from the Upper Fossil Wood zone.  相似文献   

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