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  • AERODYNAMICS
  • Aerodynamics
  • Angiosperms
  • Animals
  • EARTH RESOURCES AND REMOTE SENSING
  • Springer  (19)
  • 1980-1984  (19)
  • 1955-1959
  • 1925-1929
  • 1983  (19)
Collection
Keywords
Publisher
Years
  • 1980-1984  (19)
  • 1955-1959
  • 1925-1929
Year
  • 1
    Electronic Resource
    Electronic Resource
    Morpho-ecological studies on geophilic plants: Vegetative reproduction inIris vartani (Iridaceae) (1983)
    Springer
    Plant systematics and evolution 141 (1983), S. 177-185 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Iridaceae ; Iris vartani ; Bulb structure ; vegetative reproduction ; bulblet germination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Structure and behaviour of the underground organs ofIris vartani were investigated in connection with the vegetative reproduction of this species. Under favourable conditions, well developed mature plants give rise to two replacement bulbs and to several propagation bulblets each year. In spite of this considerable vegetative propagation, no crowding occurs at the natural habitat. Controlled experiments show that as soon as a small group is formed, each bulb produces only one replacement bulb and not two as before. Moreover, the bulblets do not sprout while they are attached to the respective mother bulbs, but rather die and disintegrate, remaining as empty peels. In contrast, detached bulblets, sown individually in separate pots, germinate readily. Consequently, the aggregates ofI. vartani do not increase to any great extent and thus ensure their survival “in situ” for many years.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00989000
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  • 2
    Electronic Resource
    Electronic Resource
    Chromosome studies in species and hybrids ofPetrorhagia sect.Kohlrauschia (Caryophyllaceae) (1983)
    Springer
    Plant systematics and evolution 141 (1983), S. 243-255 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Caryophyllaceae ; Petrorhagia prolifera ; P. velutina ; P. glumacea ; P. nanteuilii ; Chromosome numbers ; karyotype ; meiotic behaviour ; polyploidy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Cytogenetic investigations have been made in the fourPetrorhagia species and hybrids of the sectionKohlrauschia. The three diploid species show close similarities in chromosome number, size and morphology, with the exception ofP. velutina, where one pair of metacentric chromosomes is represented by a pair of telocentrics. Meiotic studies in hybrids indicate close genomic homology between the diploid species and also between the two floral forms ofP. prolifera. The tetraploidP. nanteuilii behaves as an allotetraploid forming only bivalents at meiosis and results suggest thatP. velutina andP. prolifera are the diploid progenitors of this species. Since meiosis in diploid and triploid hybrids results in extensive intergenomic pairing it is concluded that the natural tetraploid has a bivalent promoting mechanism that prevents pairing between the genomes of its diploid progenitors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00989005
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  • 3
    Electronic Resource
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    Developmental anatomy ofAphyllanthes monspeliensis, a herbaceous Monocotyledon with secondary growth (1983)
    Springer
    Plant systematics and evolution 141 (1983), S. 231-241 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Liliiflorae ; Liliaceae ; Aphyllanthaceae ; Xanthorrhoeaceae ; Aphyllanthes monspeliensis ; Morphogenesis ; anatomy ; vestigial cambium ; secondary thickening ; ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Aphyllanthes monspeliensis is an isolated member of theLiliiflorae endemic to the Mediterranean region. It is herbaceous, but in its rhizome possesses a secondary thickening meristem (STM). The secondary tissues produced are similar to those known in various arborescent Monocotyledons. Ultrastructural features of the STM cells are described. A relictual intrafascicular cambium also occurs in the bundles of the primary system of the rhizome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00989004
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  • 4
    Electronic Resource
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    Morphological dispersal structures in relation to growth habit in theCompositae (1983)
    Springer
    Plant systematics and evolution 143 (1983), S. 1-16 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Compositae ; Dispersal ; pappus ; growth form: annuals ; biennials ; perennial herbs ; shrubs and trees ; weeds and non-weeds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The relationship between gross morphological dispersal structures, growth habit, and weediness is reported for a worldwide sample of 5893 Compositae species from 18 regional floras. A significantly smaller percentage of annual species than perennial species has dispersal structures. Among species with dispersal structures, plumed types are more frequent in perennials while adhesive types are more frequent in annuals. Differences in the occurrence and nature of dispersal structures between perennial herbs, shrubs and trees were minor. Weeds are less likely to have well developed morphological dispersal structures than non-weeds. The data support the idea that dispersal in space may be more important for perennial or non-weedy plants than for annual and weedy plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00984109
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  • 5
    Electronic Resource
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    Ballistic seed dispersal inIllicium (Illiciaceae) (1983)
    Springer
    Plant systematics and evolution 143 (1983), S. 227-232 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Magnoliidae ; Illiciaceae ; Illicium floridanum ; Ballistic dispersal ; seed dispersal ; vegetative propagation ; early angiosperm evolution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The primary mode of fruit dispersal in the woodyMagnoliidae is animal dispersal.Illicium floridanum and other members of the genus have a well development system of ballistic fruit dehiscence. The ballistic dispersal is effective only over short distances, but may be important in propelling the seeds away from the parent tree. The presence of explosive dehiscence mechanisms in relatively primitive angiosperm genera suggests that a diversity of dispersal mechanisms may have been present in early angiosperms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00986380
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  • 6
    Electronic Resource
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    Reproductive characters associated with breeding behaviour inBeta sect.Beta (Chenopodiaceae) (1983)
    Springer
    Plant systematics and evolution 143 (1983), S. 277-283 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Chenopodiaceae ; Beta ; Reproductive biology ; allogamy versus autogamy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Populations of different taxa withinBeta sect.Beta were compared using a number of floral and reproductive characters. Plants which were known to be self-incompatible (through S-allele incompatibility) were found to be morphologically distinct from those which were self-compatible, with the floral characteristics of the latter promoting their autogamy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00986609
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  • 7
    Electronic Resource
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    Chemotaxonomical investigations of theSymphytum officinale polyploid complex andS. asperum (Boraginaceae): Phytosterols and triterpenoids (1983)
    Springer
    Plant systematics and evolution 143 (1983), S. 285-292 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Boraginaceae ; Symphytum ; Phytosterols ; triterpenoids ; chemotaxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract From a comparison of phytosterol and triterpenoid patterns of severalSymphytum officinale cytotypes,S. asperum and their interspecific hybrids,S. ×uplandicum, which were obtained from thin layer chromatography and gaschromatography (also in combination with mass spectrometry), the hybrid character of the latter taxon is clearly shown. The specific value of the triterpenoid isobauerenol as a chemotaxonomical marker within this group is discussed in some detail.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00986610
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  • 8
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    Reproductive relationships between annual species ofCalendula (Compositae) (1983)
    Springer
    Plant systematics and evolution 143 (1983), S. 311-329 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Compositae ; Calendula ; Selfing ; interspecific hybrids ; speciation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Breeding experiments were carried out inCalendula species. In the annuals, which are selfers, rarely some outcrossing was observed only in the most peripheral flowers. In experimental crosses fruit was produced in all combinations. Fertile F1 and F2 hybrids could be grown from crosses between parents with similar chromosome numbers:C. palaestina ×C. pachysperma and crosses of different morphological forms ofC. arvensis. In crosses of species with different chromosome numbers at least partly fertile F1 hybrids were obtained fromC. tripterocarpa ×C. stellata andC. tripterocarpa ×C. arvensis and crosses of the latter withC. palaestina. Fertile F2 plants were grown from the combination ofC. arvensis ×C. tripterocarpa. Considering this information and previously obtained data, a scheme is proposed for explaining speciation in the genusCalendula.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00986612
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  • 9
    Electronic Resource
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    Nuclear ultrastructure: Morphometry of nuclei from various tissues ofCucurbita, Melandrium, Phaseolus, Tradescantia, andVicia (1983)
    Springer
    Protoplasma 115 (1983), S. 59-64 
    Details
    ISSN: 1615-6102
    Keywords: Angiosperms ; Chromatin organization ; Morphometry ; Nuclear ultrastructure ; Species-specific chromatin condensation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The proportion of chromatin in the condensed state was determined in various tissues of five plant species. InVicia faba the influence of treatments with inhibitors of transcription and several growth temperatures was studied. No significant differences could be found except inPhaseolus vulgaris, where cell aging may contribute to some variation in chromatin organization, and in the highly specialized antipodal cells ofMelandrium dioicum, which exhibited an atypical nuclear ultrastructure. These quantitative data confirm earlier suggestions (Nagl 1979 a) that condensed chromatin in angiosperms is fairly species-specific, but not tissue-specific or function-related.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01293581
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  • 10
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    Pollen grain morphology supports the taxonomical discrimination of Mediterranean oaks (Quercus, Fagaceae) (1983)
    Springer
    Plant systematics and evolution 141 (1983), S. 273-284 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Fagaceae ; Quercus ; Pollen exine architecture ; pollen grain size and form
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The exine architecture and some quantitative parameters (polar and equatorial axes and their ratio) of pollen grains allow a clear discrimination between groups of Mediterranean oak species. For the differentiation of species within groups only the quoted parameters prove useful.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00989007
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  • 11
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    Studies in the embryology ofSenecioneae (Compositae) (1983)
    Springer
    Plant systematics and evolution 142 (1983), S. 61-70 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Compositae =Asteraceae ; Senecioneae ; Emilia ; Notonia ; Gynura ; Embryology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Anthers are tetrasporangiate inEmilia sonchifolia andNotonia grandiflora and bisporangiate inGynura nitida. The male archesporium consists of a single row of 6–8 hypodermal cells. Development of anther walls is according to the Dicotyledonous type. The tapetum corresponds to the periplasmodial type. Both tetrahedral and isobilateral pollen tetrads are produced. The pollen grains at the time of anther dehiscence are three-celled inG. nitida andE. sonchifolia;N. grandiflora is male sterile. All the three species have Polygonum type embryo sacs with variable antipodal cells. InG. nitida andE. sonchifolia fertilization is porogamous, endosperm development is of the cellular type, and embryo development closely follows that ofSenecio vulgaris (Souèges 1920a, b).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00989604
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  • 12
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    A numerical-taxonomic study of theJuncus bufonius aggregate (Juncaceae) in Slovakia (1983)
    Springer
    Plant systematics and evolution 142 (1983), S. 137-148 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Juncaceae ; Juncus bufonius ; J. ambiguus ; J. minutulus ; Analysis of variance ; cluster analysis ; chromosome numbers ; karyotaxonomy ; numerical taxonomy ; ordination ; Flora of Slovakia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Samples of 34 populations of theJuncus bufonius aggregate in Slovakia have been submitted to a numerical-taxonomic treatment. Three species corresponding to three known cytodemes, i.e.J. bufonius L. s. str. (2n = c. 100–110),J. ambiguus Guss. (2n = 34) andJ. minutulus (Alb. etJahan.)Prain et al. emend.Snog. (2n = c. 72), have been confirmed for the study area. A survey of quantitative characters by various ordination and cluster techniques reveals that the length of capsules, seeds, inner tepals and anthers as well as the ratio of anther to filament length are significant for the segregation of the cytodemes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00985894
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  • 13
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    Mikromorphologie und Orientierungsmuster epicuticularer Wachs-Kristalloide: Ein neues systematisches Merkmal bei Monokotylen (1983)
    Springer
    Plant systematics and evolution 142 (1983), S. 171-185 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Monocotyledonae ; Epicuticular wax ; micromorphology ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Based on SEM examinations of some 1600 species of monocotyledons out of 61 families the characteristics of their epicuticular waxes are described in this preliminary paper and illustrated by 20 SEM micrographs. Four basic types of waxes are recognized. Two of them occur throughout the monocotyledonous and dicotyledonous orders of angiosperms; two others are of high systematic significance and restricted to particular orders of the monocotyledons: The “Convallaria-Type” is characterized by fine wax platelets with parallel orientation, forming a pattern around the stomata reminiscent of electromagnetic field lines. This type is restricted to the three liliiflorous ordersAsparagales, Liliales, andBurmanniales. The “Strelitzia-Type” is characterized by massive compound wax rodlets; it is restricted to the superordersAreciflorae, Commeliniflorae, Zingiberiflorae, plus the two liliiflorous ordersBromeliales andVelloziales. The data are compared with the classifications ofDahlgren & Clifford (1982); they tentatively indicate the exclusion ofBromeliales, Velloziales, andTyphales from theLiliiflorae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00985897
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  • 14
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    The nature of polyploidy inReseda sect.Leucoreseda (Resedaceae) (1983)
    Springer
    Plant systematics and evolution 142 (1983), S. 223-237 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Resedaceae ; Reseda ; DNA values ; meiotic analysis ; seed protein and esterase isozyme electrophoresis ; polyploidy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We have found two chromosome levels (n = 10 and n = 20) in Spanish species ofReseda sect.Leucoreseda, four species on the first (R. undata, R. paui, R. suffruticosa, R. barrelieri), only one on the second level (R. alba). As already the species with n = 10 apparently behave as polyploids, we propose x = 5 as the original basic chromosome number for this section. The seed protein profile ofR. alba (2n = 40) reveals close relationships withR. undata (2n = 20), while the esterase isozymes suggest affinities withR. paui (2n = 20). Thus,R. alba can be regarded either as an autopolyploid fromR. paui or more likely as an allopolyploid fromR. paui andR. undata. Finally, the DNA values suggest a diploidization process inR. alba since its origin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00985900
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  • 15
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    NewLiparis species (Orchidaceae) from South Central and East Africa (1983)
    Springer
    Plant systematics and evolution 142 (1983), S. 149-156 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Orchidaceae ; Liparis molendinacea spec. n. ; L. chimanimaniensis spec. n. ; L. nyikana spec. n. ; Flora of Tropical East and South Central Africa
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Liparis molendinacea is related toL. deistelii and known so far only from the type locality in Kawambwa district in the Northern Province of Zambia.L. nyikana likewise is related toL. deistelii, it is distributed in E. and SW. Tanzania and in N. Malawi.L. chimanimaniensis is related toL. nervosa and known so far only from the Chimanimani Mountains in the Eastern Province of Zimbabwe.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00985895
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  • 16
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    The impact of copper and cobalt orebodies upon the evolution of some plant species from Upper Shaba, Zaïre (1983)
    Springer
    Plant systematics and evolution 142 (1983), S. 207-221 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Caryophyllaceae ; Silene burchelli ; Silene cobalticola ; Cobalt uptake ; cobalt tolerance ; copper uptake ; copper tolerance-‚evolution ; flower morphology ; leaf anatomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The flora of the copper-cobalt ores of Upper Shaba, Zaïre, comprises some 220 taxa including 42 endemics. The origin of this flora is examined and an assessment has been made of its relationship with the flora of the high plateaux steppe-savannah (dilunguan flora). A first group consists of undifferentiated species limited to these two floras. A second group comprises cupriphilous taxa derived from closely-related and widely distributed species observed on the high plateaux and elsewhere. A third group consists of closely-related species or ecotypes confined to the areas. In theSilene burchelli complex (Caryophyllaceae) there is a gradual transition from the widespreadS. burchelli var.angustifolia on the high plateaux to a newly discoveredS. burchelli ecotype from a cupriferous outcrop at Luita, and toS. cobalticola from highly mineralized copper-cobalt deposits at Mindigi. This ecophyletic series provides a gradient of morphological anatomical, and physiological changes whose end members are distinct species. The subject of palaeoendemism and neoendemism in relation to metallophytes of Upper Shaba is also discussed. Colonisation of metalliferous soils by elements of the non-mineralised high plateau is believed to be a neoendemic process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00985899
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  • 17
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    Ultrastructural, micromorphological and phytochemical evidence for a “Central Position” ofMacarthuria (Molluginaceae) within theCaryophyllales (1983)
    Springer
    Plant systematics and evolution 143 (1983), S. 151-161 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Caryophyllales ; Molluginaceae ; Macarthuria ; Sieve-element plastids ; pollen ; ultrastructure of exine ; seed-coat surface ; anthocyanins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Subtype PIII sieve-element plastids, anthocyanins, spinulose, perforate-tectate pollen grains and the specific seed-coat sculpturing found in twoMacarthuria species (M. australis, M. neocambrica) consolidate their placement withinMolluginaceae. The unique form of the sieve-element plastids, i.e. with cubic crystals and starch grains (PIIIc″fs), finds its closest counter-part inLimeum. The multiple intertwinement of different genera of theMolluginaceae with many other centrospermous families led to a consideration of their more central position withinCaryophyllales.
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    URL: http://dx.doi.org/10.1007/BF00984117
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  • 18
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    Phylogenetic conclusions from Giemsa banding and NOR staining in top onions (Liliaceae) (1983)
    Springer
    Plant systematics and evolution 143 (1983), S. 245-256 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Liliaceae ; Alliaceae ; Allium cepa ; Allium fistulosum ; Top onions ; hybrids ; karyotypes ; Giemsa banding ; silver staining ; nucleolus organizing region (NOR) ; satellite chromosomes ; phylogeny
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The chromosomes of different strains of the top or tree onion, ofAllium cepa andA. fistulosum, as well as of cloned progenies from reciprocal crosses between these two taxa have been studied by application of Feulgen- or aceto carmine-, Giemsa- and silver staining. It was possible to differentiate between the satellite chromosomes and 2–4 other chromosome pairs ofA. cepa andA. fistulosum. The phylogenetic origin of the top onions [A. ×proliferum (Moench)Schrad.] from hybridization ofA. cepa andA. fistulosum is substantiated, taking into consideration the variability in size and position of satellites and of active NORs.
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    URL: http://dx.doi.org/10.1007/BF00986607
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  • 19
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    Patterns of trait variation in the diploid wheats (Triticum, Aegilops) and the tetraploid speciesTriticum diccocoides (1983)
    Springer
    Plant systematics and evolution 143 (1983), S. 257-275 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Poaceae ; Aegilops ; Triticum ; T. diccocoides ; wheat ; Adaptation ; trait variation ; factor analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Eighteen earliness and morphological traits were examined in from 2 to 14 lines each of 10 diploid members of the wheat complex,Triticum-Aegilops, and 15 lines of the tetraploid speciesTriticum diccocoides. In general, earliness traits have the greatest relative between line vs. within line variation of all the traits examined. Within species, earliness traits are the principle set of characters around which evolve between line trait differences, one of the most important oich is leaf dimensions. At the genus level, earliness traits are independent of leaf dimensions and plant height characters. Thus, the pattern of evolution at the genus level is different from that exhibited in each of the species. Biological and evolutionary implications of these findings are discussed.
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    URL: http://dx.doi.org/10.1007/BF00986608
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