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''Drosophyllum'' (, rarely ) is a genus of carnivorous plants containing the single species ''Drosophyllum lusitanicum'' (Portuguese sundew or dewy pine). In appearance, it is similar to the related genus ''Drosera'' (the sundews), and to the much more distantly related ''Byblis'' (the rainbow plants). ''Drosophyllum lusitanicum'' is native to the western Mediterranean region (Portugal, Spain and Morocco), and is one of the few carnivorous plants to grow in dry, alkaline soils. The 20- to 40-cm (8- to 16-in) glandular leaves, which uncoil from a central rosette, lack the power of movement common to most sundews, but have the unusual characteristic of coiling 'outward' when immature (outward circinate vernation).〔Hewitt-Cooper, N. 2012. ''Drosophyllum lusitanicum'' L.. ''Carnivorous Plant Newsletter'' 41(4): 143–145.〕 The plant has a distinct sweet aroma, which attracts the insects upon which it preys. When insects land on the leaves, they find themselves stuck to the mucilage secreted by the stalked glands on the leaves. The more the insects struggle, the more ensnared they become, ultimately dying of suffocation or exhaustion. The plant then secretes enzymes which dissolve the insects and release the nutrients, which are then absorbed by the plant. The plant uses these nutrients to supplement the nutrient-poor soil in which it grows. ''Drosophyllum lusitanicum'' bears bright-yellow flowers, in diameter, borne in groups of 3–15 between February and May. The translucent seedpods bear 3–10 opaque black, pear-shaped seeds, in diameter. Seed germination may be aided by scarification. The genus had always been assumed to be closely allied to ''Drosera'', and was previously placed in the Droseraceae. Recent molecular and biochemical studies, however, place it in the monotypic Drosophyllaceae, as recommended by the Angiosperm Phylogeny Group, and allied with the Dioncophyllaceae (''Triphyophyllum'') and Ancistrocladaceae. ==Classification== The APG system (1998) and APG II system (2003) assign Drosophyllaceae to the order Caryophyllales in the clade core eudicots. ''D. lusitanicum'' had previously always been included in the family Droseraceae, as it catches insects with a method reminiscent of that used by many plants in that family. Recent molecular and biochemical evidence (see the (AP-Website )) suggests the carnivorous taxa in the order Caryophyllales (the families Droseraceae, Drosophyllaceae, Nepenthaceae, and the species ''Triphyophyllum peltatum'') all belong to the same clade, which does not consist only of carnivorous plants, but also includes some noncarnivorous plants, such as those in the family Ancistrocladaceae. Image:Drosophyllum_lusitanicum_ne.jpg|''Drosophyllum lusitanicum'' flower Image:Drosophyllum lusitanicum detail.JPG|Detail of leaves 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Drosophyllum」の詳細全文を読む スポンサード リンク
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