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  • 1980-1984  (5)
  • 1955-1959  (1)
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  • 1
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    Unknown
    The pistil of Bertolonia marmorata Naud. (Melastomataceae) (1958)
    In:  Blumea. Supplement vol. 4 no. 1, pp. 144-148
    Details
    Publication Date: 2024-01-12
    Description: The flower of Bertolonia marmorata, a small herbaceous plant from South Brazil, is epigynous, pentamerous except for the trimerous gynaecium, pentacyclic and diplostemonous. The ovary is fused to the perianth-tube basally, on cross-section it appears as an equilateral triangle, one corner of which is taken by a locule situated abaxially and epipetalous. The style is terminal, and the stigma simple, but around the style the walls of the ovary, especially their middle parts, extend freely upwards (Fig. 13).\nThe axillary placenta is an awl-formed structure, projecting into the locule rather perpendicular to the pistil axis.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 2
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    Note on the structure of developing seeds of Knema and Horsfieldia (Myristicaceae) (1982)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 28 no. 1, pp. 53-60
    Details
    Publication Date: 2024-01-12
    Description: The structure of the seed is based on the massive development of the ovule immediately above the insertion of the outer integument. This may be called endochalazal development, as suggested by F. Bouman (Pers. comm.).
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 3
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    A S.E.M.-investigation on the development of free carpels (1981)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 27 no. 2, pp. 499-522
    Details
    Publication Date: 2024-01-12
    Description: The early development (ontogeny) of the carpels of 20 species belonging to 8 apocarpous families was investigated with the scanning electron microscope. The results indicate that on the floral apex a circular or a convex meristem develops into an obliquely ascidiate primordium by unequal growth of its periphery. By further unequal growth it develops into a young carpel. The terminal mouth of a cup becomes the lateral cleft of a carpel. The different forms of the young carpels in different species are defined by the varying degree of development of the adaxial region of the initial meristem and/or its margin on the side of the floral apex. This hypothesis is theoretically evaluated.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 4
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    Variation in the development of ascidiform carpels, an S.E.M.-investigation (1984)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 29 no. 2, pp. 443-452
    Details
    Publication Date: 2024-01-12
    Description: Attention is drawn to the differences in place and time of origin of the abaxial (upper) and adaxial (lower) parts of the margin of ascidiform carpel primordia. It is assumed that the adaxial parts will develop more fully when the primordia have more space and time to develop on an expanding floral apex. The favoured occurrence of the margin at the base of the primordia seems a prerequisite to incipient syncarpy.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 5
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    Flowers and fruits in Flacourtiaceae. V. The seed anatomy and pollen morphology of Berberidopsis and Streptothamnus (1984)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 30 no. 1, pp. 31-37
    Details
    Publication Date: 2024-01-12
    Description: Seed anatomy and pollen morphology support the transference of the Australian Streptothamnus beckleri to the Chilean genus Berberidopsis.
    Repository Name: National Museum of Natural History, Netherlands
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  • 6
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    The ascidiform early development of free carpels, a S.E.M.-investigation (1983)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 28 no. 2, pp. 231-270
    Details
    Publication Date: 2024-01-12
    Description: Carpels develop centripetally as oblique slightly ascidiform structures provided with a seat-like support. The terminal mouth of the ascidiform primordium becomes the lateral cleft of the carpel. Solitary terminal carpels develop as lateral structures. The sections Tasmannia and Drimys of the genus Drimys differ by the varying degree of ascidiform development. Austrobaileya is like Drimys. The structure of the carpel margins with submarginal placentation may have evolved from a slit like that in Winteraceae. Allometric development of an oblique ascidiform structure may have formed a large basal ovary, and may thus have moved the stigmatic part apically. A possible cupular origin of carpels is discussed.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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