Каталог тропических растений
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Adenocalymna ( Adenocalymma ) comosum, Bignonia comosa Family: Bignoniaceae Yellow Trumpet Vine Origin: South America ![]() ![]() ![]() ![]() ![]() ![]() The North-east-Brazilian Liana, Adenocalymna comosum is pollinating by Bats. The euphilic flowers of plants in the family Bignoniaceae display a spectrum of adaptive radiations, involving different pollinator groups. Besides melittophily (adaptation to pollination by medium - to large-sized bees), which predominates, flowers pollinated by hawkmoths. Each individual plant had a single inflorescence, which extended above the foliage, in the form of a simple, terminal, vertically orientated, many-flowered raceme on a long, bracteose peduncle. The inflorescence structure, with only one or two flowers open at a given time (in the latter case on the same node), indicates continuous flowering over at least several weeks, thus displaying a ‘steady state’ pattern . The flowers, on a stout pedicel (20 mm long), have a 5-dentate tubular calyx. The calyx, the subtending bracts and the two prophylls bear groups of extrafloral nectaries (single peltate trichomes). These were foraged by large, blackish ants day and night. The yellow-coloured corolla, measuring 7 mm in length, has a 28mm long and 4mm-wide basal tube that widens rather abruptly into a campanulate limb. |
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