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  • 1
    Call number: SR 17.90400(1985,6)
    In: Abhandlungen der Mathematisch-Naturwissenschaftlichen Klasse
    Type of Medium: Series available for loan
    Pages: 39 S. , graph. Darst. , 24 cm
    Series Statement: Abhandlungen der Mathematisch-Naturwissenschaftlichen Klasse 1985, 6
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 2
    ISSN: 1615-6110
    Keywords: Simaroubaceae ; Irvingiaceae ; Ixonanthaceae ; Erythroxylaceae ; Irvingia ; Klainedoxa ; Desbordesia ; Allantospermum ; Ochthocosmus ; Cadellia ; Guilfoylia ; Recchia ; Stipules ; pseudostipules ; metastipules ; wood anatomy ; palynology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract TheSimaroubaceae generally have no true stipules. The stipule-like appendages of some genera proved to be pseudo- or metastipules (Weberling & Leenhouts 1965). There seem to be some exceptions, however: the generaCadellia (incl.Guilfoylia) andRecchia on the one hand, and theIrvingioideae on the other. As these taxa, with exception ofRecchia, have simple leaves, there are no indications that their stipule-like appendages might be pseudo- or metastipules. In regard to their position and ontogeny these appendages behave completely like true stipules. Assuming the view ofForman, one could conceive a morphological line from the long, broadly inserted axillary stipules of mostIrvingioideae to the small scaly triangular stipules ofIxonanthoideae. The similarities between the stipules ofIrvingioideae andErythroxylaceae (already emphasized byHallier and others), become even more evident when their ontogeny is investigated. TheIrvingioideae, therefore, might be regarded as a separate family (perhaps with some relation to theErythroxylaceae,Hallier) or as a subfamily ofIxonanthaceae (Forman).—In addition to data on stipules some results on the palynology and shoot anatomy of the generaCadellia (incl.Guilfoylia) andRecchia are reported. Their relationship with theSimaroubaceae also appears doubtful. If they are to be included, they represent a somewhat isolated group near the base of the family which otherwise has lost its stipules.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Plant systematics and evolution 127 (1977), S. 217-242 
    ISSN: 1615-6110
    Keywords: Valerianaceae ; Valeriana ; Aretiastrum ; Growth form ; morphology and histology of shoot and leaf ; palynology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The fiveAretiastrum species investigated are differentiated by morphological, histological and palynological characteristics from one another and from woodyValeriana species. It seems justified to regardAretiastrum at least as a distinct section ofValeriana but better as a separate genus.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Plant systematics and evolution 197 (1995), S. 99-109 
    ISSN: 1615-6110
    Keywords: Asclepiadaceae ; Inflorescence ; morphology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Inflorescence structure in the familyAsclepiadaceae, particularly in the subfamilyAsclepiadoideae, is elucidated using the methodology and terminology of the school ofW. Troll. Asclepiadaceae inflorescences are principally thyrsoid systems, with variability resulting from different degrees of reduction of dichasial paracladia to bostryces, sciadioids, and, finally, to single flowers.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Plant systematics and evolution 156 (1987), S. 69-89 
    ISSN: 1615-6110
    Keywords: Angiosperms ; Valerianaceae ; Xylem transfer cells
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Stems, incl. rhizomes, and roots of 42 species ofValerianaceae were investigated in order to reveal the occurrence, structure and distribution of xylem transfer cells. Within nodes and internodes their frequency, distribution and gradients of development are similar to other families. — Within the secondary xylem of some species transfer cells can develop from cambial derivates, inValeriana tuberosa andPatrinia villosa even from pith cells. Within the turnip ofV. tuberosa transfer cells are very frequent and well developed. Here, after degradation of the cell-wall ingrowths they can be redifferentiated into storage cells which usually contain starch grains (“Hüllenstärkekörner”). In the transitional zone between stem and root of some predominantly herbaceous taxa transfer cells are often very frequent and form large protuberances before they degrade and lignify. SEM observations inValeriana decussata show that the cell-wall ingrowths are degradated at the beginning of lignification with the exception of brush-like protuberances remaining in the half-bordered pit-pairs. During the subsequent process of lignification the simple pits of a wall adjacent to a vessel can be transformed into corresponding pit-pairs. In this case the residues of the protuberances within the pit chamber can be transformed into incrustations similar to the vestures of bordered pits described byBailey (1933). Structural similarities between the brush-like protuberances in the half-bordered pits of theValeriana transfer cells and the ingrowths found inLauraceae (Castro 1982, 1985) are evident. Supposedly, all the cambial derivatives inValerianaceae can develop protuberances at least within their pits. Thus, it appears possible to interpret the vestures of the bordered pits as rudimentary protuberances, and to suggest that they have a specific function in the selective transport of solutes.
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  • 6
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    In:  Blumea - Biodiversity, Evolution and Biogeography of Plants (0006-5196) vol.14 (1966) nr.2 p.333
    Publication Date: 2015-03-06
    Description: Auf Grund ihres Fruchtknotenbaues konnte die Gattung Kolkwitzia schon bei ihrer Beschreibung durch Graebner (1901a) den Linnaeeae zugeordnet werden, und zwar gehört sie nach Graebner “unmittelbar neben Linnaea”. Dabei ist freilich zu bemerken, dass Graebner (1901b) dem Vorschlage von (Braun und) Vatke (1871) folgend unter dem Gattungsnamen Linnaea die Gattungen Linnaea L. und Abelia R. Br. zusammenfasste. Als besonderes Kennzeichen der Gattung wird von Graebner hervorgehoben, dass die Ovarien der Blüten gewöhnlich paarweise miteinander verwachsen sind. Durch diese Verwachsung von Fruchtknoten je zweier benachbarter Blüten “erinnert sie an Lonicera, bei der jedoch beide auf einer Höhe stehen, während sie bei Kolkwitzia in der bisher nicht bekannten Weise, dass nämlich der eine Fruchtknoten der Spitze des andern seitlich angewachsen ist, verbunden sind”. Darüber hinaus macht Graebner weder über die Stellungsverhältnisse der miteinander verwachsenen Blüten noch über die Art der Verwachsung nähere Angaben. Im Verlaufe einer vergleichenden Untersuchung über die Infloreszenzen der Caprifoliaceen (Troll & Weberling 1966) sind wir daher auch diesen Fragen nachgegangen und erhielten dabei weitere Hinweise auf die engeren Verwandtschaftsverhältnisse von Kolkwitzia.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
    Format: application/pdf
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  • 7
    facet.materialart.
    Unknown
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 14 no. 2, pp. 333-336
    Publication Date: 2024-01-12
    Description: Auf Grund ihres Fruchtknotenbaues konnte die Gattung Kolkwitzia schon bei ihrer Beschreibung durch Graebner (1901a) den Linnaeeae zugeordnet werden, und zwar geh\xc3\xb6rt sie nach Graebner \xe2\x80\x9cunmittelbar neben Linnaea\xe2\x80\x9d. Dabei ist freilich zu bemerken, dass Graebner (1901b) dem Vorschlage von (Braun und) Vatke (1871) folgend unter dem Gattungsnamen Linnaea die Gattungen Linnaea L. und Abelia R. Br. zusammenfasste.\nAls besonderes Kennzeichen der Gattung wird von Graebner hervorgehoben, dass die Ovarien der Bl\xc3\xbcten gew\xc3\xb6hnlich paarweise miteinander verwachsen sind. Durch diese Verwachsung von Fruchtknoten je zweier benachbarter Bl\xc3\xbcten \xe2\x80\x9cerinnert sie an Lonicera, bei der jedoch beide auf einer H\xc3\xb6he stehen, w\xc3\xa4hrend sie bei Kolkwitzia in der bisher nicht bekannten Weise, dass n\xc3\xa4mlich der eine Fruchtknoten der Spitze des andern seitlich angewachsen ist, verbunden sind\xe2\x80\x9d. Dar\xc3\xbcber hinaus macht Graebner weder \xc3\xbcber die Stellungsverh\xc3\xa4ltnisse der miteinander verwachsenen Bl\xc3\xbcten noch \xc3\xbcber die Art der Verwachsung n\xc3\xa4here Angaben. Im Verlaufe einer vergleichenden Untersuchung \xc3\xbcber die Infloreszenzen der Caprifoliaceen (Troll & Weberling 1966) sind wir daher auch diesen Fragen nachgegangen und erhielten dabei weitere Hinweise auf die engeren Verwandtschaftsverh\xc3\xa4ltnisse von Kolkwitzia.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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