. Handbook of flower pollination : based upon Hermann MuÌller's work 'The fertilisation of flowers by insects' . Fertilization of plants. BORAGINEAE 141 2005. M. collina Hoffm. ( = M. hispida Schkchl.). (Herm. Muller, 'Fertilisa- tion,' p. 416, ' Weit. Beob.,' II, pp. 18-19.)âThe mechanism of the minute homogamous, bright blue flowers of this species agrees essentially with that of M. intermedia. The anthers are contained in the short (scarcely 2 mm.) corolla-tube, and converge together over the stigma, upon which they ultimately drop pollen. Should there be insect-visits, however, crossing ta
. Handbook of flower pollination : based upon Hermann MuÌller's work 'The fertilisation of flowers by insects' . Fertilization of plants. BORAGINEAE 141 2005. M. collina Hoffm. ( = M. hispida Schkchl.). (Herm. Muller, 'Fertilisa- tion,' p. 416, ' Weit. Beob.,' II, pp. 18-19.)âThe mechanism of the minute homogamous, bright blue flowers of this species agrees essentially with that of M. intermedia. The anthers are contained in the short (scarcely 2 mm.) corolla-tube, and converge together over the stigma, upon which they ultimately drop pollen. Should there be insect-visits, however, crossing takes place in the following way, according to Hermann Mul- ler.âThe yellow pocket-like involutions of the ,. , ⢠c ^ n Vio. 279. Myosotis intermedia^ Link corolla so narrow the Openmg of the flower that the (after Herm. UUUer). (i) Flower partly proboscis of an insect can only be inserted exactly ^''^^â¢'^f fromthe side (x 7). (2) Lateral * ^ J ^ .j.^. ^-^c*^ View of a Stamen (still more Strongly mag- in the centre. The appendages of the connectives nified), to show the broad outwardly bent J . I. 1 1^ T_ -J I appendage of the connective, a, bright- end \ mm. below the entrance, but guide the pro- blue coroUalobes; b, radial white streaks; boscis between them along the axis of the flower, '- ^f""^" "f ^°f ""= â¢â¢"'^;''- ^""â '"' ^ ' (?, stigma; j, nectary. until it inevitably comes into contact with the stigma, and glides over its rounded surface, to which pollen brought from a previously visited flower will adhere, before the nectar is reached. When the proboscis is withdrawn it brushes past the inner surfaces of the anthers, and dusts itself with pollen. Visitors.âThe following were recorded by the observers, and for the localities stated.â Herm. Muller (Westphalia), a Muscid (Anthomyia sp.), skg. Borgstette (Meck- lenburg), the bee Halictus zonulus Sm. 5, skg. Verhoeff (Norderney), the bee Halictus
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