Some Flowers and Their Dipteran Visitors

Drabble, Eric; Drabble, H.

doi:10.1111/j.1469-8137.1927.tb06711.x

Cited by 26 publications

(12 citation statements)

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“…The nectary glands in white dogwood flowers are open nectaries, freely exposed to pollinating insects (Drabble 1927), and belong to the persistent nectaries (Smets 1988;Smets and Cresens 1988), remaining at the top of the fruit as a darkened region. Similar nectaries, in the form of a ring-like collar surrounding the style of the pistil, have also been observed in other genera from Cornaceae (except in Davidia) as well as in some representatives of different families (Asteraceae, Apiaceae, Ericaceae, Rubiaceae) (Takhtadžân 1980;Nicolson et al 2007, and references wherein).…”

Section: Discussionmentioning

confidence: 99%

Flower nectary structure in Cornus alba L.

Konarska

2010

Plant Syst Evol

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The structure of the floral nectaries of Cornus alba was studied using light microscopy as well as scanning and transmission electron microscopy. It was found that the nectary gland of white dogwood had the shape of a fleshy ring surrounding the base of the style of the inferior ovary. Nectar secretion occurs through slightly depressed stomata, evenly distributed in the epidermis of the nectary. The nectariferous tissue is composed of over a dozen layers of heterogeneously structured cells. Between groups of cells with a typical structure, characteristic for the secretory tissue, cells occur with degenerated content and a high degree of vacuolization. In the area of the nectary gland cells, no vascular tissue elements were observed. The nectary was irrigated by the vasculature of the flower receptacle.

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Section: Discussionmentioning

confidence: 99%

Flower nectary structure in Cornus alba L.

Konarska

2010

Plant Syst Evol

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“…The plants of the family Apiaceae are mostly visited by flies (Drabble and Drabble 1927;Proctor et al 1996), but detailed studies showed that, apart from dipteran pollinators (Zych 2007), their flowers may also be pollinated by beetles (Lamborn and Ollerton 2000), bees or other hymenopterans (Bell and Lindsey 1978;Lindsey 1984;Wardle 2002, 2008), including ants (Carvalheiro et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Fly pollination of dichogamous Angelica sylvestris (Apiaceae): how (functionally) specialized can a (morphologically) generalized plant be?

Niemirski

Zych

2011

Plant Syst Evol

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Because of the flower morphology and high number of insect visitors, plants of the family Apiaceae are regarded as generalists in terms of pollination systems. Recent studies however showed some degree of, at least, ecological specialization in some members of this taxonomical group and indicated interesting patterns of insect visitor behavior: discrimination between umbel sexual phases. To test whether this is true in case of other members of the family, over two years we studied the pollination biology of a common European umbellifer, Angelica sylvestris, a species considered by some authors as a supergeneralist. Although its flowers were visited by over 70 species of insects grouped in 10 morphospecies, only a relatively narrow assemblage of muscoid and syrphid flies, rather constant in both study years, contributed to pollination. These insects did not exhibit any preferences toward plant sexual phases. Based on our results and available literature, we discuss the concept of specialization/generalization of the A. sylvestris pollination system, especially in the context of the ''unspecialized'' floral morphology characteristic for members of the Carrot family.

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“…6% to ca. 13% of seed samples (origin not specified) tested between 1927and 1957(Bond et al 2007). Gooch (1963) reported up to 12.3% contamination of grass seed commodities produced in the United Kingdom and up to 29% of grass seed produced in Sweden and Denmark, noting that L. communis was relatively more frequent than other weed seeds in Italian ryegrass (Lolium multiflorum Lam.)…”

Section: Economic Importance and Environmentalmentioning

confidence: 99%

“…(Diptera: Syrphidae); house-flies (Diptera: Muscidae); butterflies (Lepidopterae); and several bees, Lasioglossum leucozonicum Schr., L. morio Fabr. and L. smeathmanellum (Kirby) (Hymenoptera: Halictidae) (Knuth 1908;Drabble and Drabble 1927). A dagger fly, Empis pennipes L. (Diptera: Empididae), a cabbage butterfly Pieris rapae L. (Lepidoptera: Pieridae) and unidentified syrphid flies were photographed visiting flowers in Belgium (Lindsay 2005).…”

Section: Reproductionmentioning

confidence: 99%