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  • 1
    Electronic Resource
    Electronic Resource
    Pollination ofPlectranthus vestitus (Lamiaceae) by trap-lining hovering bees in Madagascar (1985)
    Springer
    Plant systematics and evolution 150 (1985), S. 223-236 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Lamiaceae ; Plectranthus ; P. vestitus ; Pollination ; melittophily ; hovering bees ; Flora of madagascar
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In a primary forest on the Central Plateau of MadagascarPlectranthus vestitus (Lamiaceae) was principally pollinated by the beePachymelus limbatus (Hymenoptera, Anthophoridae). A species ofStylogaster (Diptera, Conopidae) acted as a co-pollinator. Flower — pollinator interactions are described. The bee performed pollination while hovering, a flower-visit lasting onlyc. 0.3 seconds. Floral features such as shape and size of the corolla tube, and the lack of a landing place suggest specialization to hovering anthophorid beepollinators. Floral biology and pollination in the genusPlectranthus are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00984198
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    “Ixoroid” secondary pollen presentation and pollination by small moths in the Malagasy treeletIxora platythyrsa (Rubiaceae) (1990)
    Springer
    Plant systematics and evolution 170 (1990), S. 161-175 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Rubiaceae ; Ixora ; I. platythyrsa ; Moth-pollination ; secondary pollen presentation ; Flora of Madagascar
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The pollination biology ofIxora platythyrsa (Rubiaceae) was studied in NW. Madagascar. The plant displayed cream-yellow, nocturnally fragrant, nectariferous, tubular and strongly protandrous flowers. These had an “ixoroid” secondary pollen presentation mechanism: prior to anthesis, anthers exhausted their pollen onto unripe stylar heads. From this position pollen of male-stage flowers later adhered to primarily the probosces of small visiting nocturnal noctuid and geometrid moths. — Pollen was subsequently raked off moths' probosces by receptive, copiously papillose stigmas of female-stage flowers. Principal pollination adaptation was probably to the noctuid moth subfam.Sarrothripinae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00937701
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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