gorgonias. The seeds of Roridula dentata germinate shortly after a fire has destroyed the vegetation. Flowering mostly occurs in September and December. Like many other carnivorous plants, Roridula has a rather poorly developed root system, and grows on acidic and leached soils in humid locations. Roridula shares its habitat with several Drosera species. Like Drosera, R. gorgonias strongly absorbs UV and this is assumed to attract flying insects. Both Drosera and Roridula trap large numbers of various flying insects. Unlike Drosera, Roridula gorgonias secretes a very sticky resinous substance, mainly containing acylglycerides and triterpenoids that are insoluble in water. This implies that insects can even be trapped during rainy weather. Roridula does not respond by bending tentacles to struggling insects, unlike Drosera, that secrete a sticky mixture of saccharides or proteins. Instead, it carries three types of glandular hairs that differ in size: long, medium, and short. The long tentacles are less sticky, and by struggling, the insect comes in contact with the much more sticky medium and short glands, which completely immobilize it. Carnivorous plants like Drosera secrete enzymes that break down proteins (so-called proteases) from the captured insects, and so make available nitrates to these plants, that grow in soils with low ammonium and nitrate content. R. gorgonias however lacks proteases and is thus unable to extract these nutrients from trapped prey directly. Instead, each plant houses individuals of the bug Pameridea roridulae, which quickly close in on the trapped insects and feed on them. The bugs consequently defecate on the leaves. In a nitrogen-15 tracing experiment, where prey insects enriched with the rare heavy nitrogen isotope were eaten by Pameridea bugs, the share of N15 increased, showing that the plant had taken up nitrogen nutrients from the captured insects. Pameridea was shown to have a thick greasy layer that prevents direct contact between the resin on Roridula tentacles and the insect's cuticle, this allows them to roam freely across the plants. R. dentata also has a hemipteran resident, Pameridea marlothi, and may receive nitrogen nutrients in much the same way. In addition, several crab spider species of the genus Synema can be found on the plant and these may both prey on the captive insects as well as on the resident bugs. The unrelated Australian genus Byblis resembles Roridula in having sticky tentacles, which do not secrete digestive enzymes and also lives together with hemipteran bugs in