• J. G. Conran
Part of the The Families and Genera of Vascular Plants book series (FAMILIES GENERA, volume 6)


Perennial insect-trapping evergreen woody shrubs from a taproot with limited lateral root development; stems perennial, erect and few-branched. Leaves alternate, crowded apically, linear to tapering, exstipulate, margins entire or with short lateral linear lobes, with insect-trapping stalked glands. Flowers in terminal, few-flowered botryoids, hermaphroditic, medium-sized and showy; calyx and corolla 5-merous, well developed; perianth actinomorphic, free, rotate, bright purple, reddish pink or white; petals imbricate in bud; stamens 5, opposite the sepals; anthers hypogynous; filaments free, filiform; anthers sub-basifixed, 2-thecate, 4sporangiate, introrse, incurved in bud, subtended by a basal swelling containing a nectariferous cavity, irritable and swinging up when touched at anthesis to become erect, dehiscing by four short apical pores or slits; gynoecium of three united carpels; ovary superior, 3-locular with axile placentation; ovules anatropous, unitegmic, solitary or 2–4 per locule; style terminal, tapering with a small capitate stigma or expanding terminally with an obconical stigma, papillate, erect. Fruit a smooth loculicidal, 3-valved cartilaginous capsule. Seeds exotestal, small, ellipsoid and smoothly reticulate or angular-trilete and prominently warty or honeycomb-sculptured, dark reddish-brown; endosperm copious; embryo linear.


Calcium Oxalate Wood Anatomy Carnivorous Plant Trap Insect Scalariform Perforation Plate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Albert, V.A., Williams, S.E., Chase, M.W. 1992. Carnivorous plants: phylogeny and structural evolution. Science 257: 1491–1495.PubMedCrossRefGoogle Scholar
  2. APG (Angiosperm Phylogeny Group) 1998. See general references.Google Scholar
  3. Behnke, H.-D. 1991. See general references.Google Scholar
  4. Bentham, G., Hooker, J.D. 1865. Genera Plantarum vol. I. London: L. Reeve.Google Scholar
  5. Bruce, A.N. 1907. On the distribution of the tentacles of Roridula. Notes Roy. Bot. Gard. Edinburgh 17: 83–98.Google Scholar
  6. Carlquist, S. 1976. Wood anatomy of Roridulaceae: ecological and phylogenetic implications. Am. J. Bot. 63: 1003–1008.Google Scholar
  7. Chrtek, J., Slavílcovâ, Z., Studnicka, M. 1989. Beitrag zur Leitbündelanordnung in den Kronblättern von ausgewählten Arten der fleischfressenden Pflanzen. Preslia 61: 107–124.Google Scholar
  8. Conran, J.G., Dowd, J.W. 1994. The phylogenetic relationships of the Byblis-Roridula (Byblidaceae-Roridulaceae) complex inferred from 18 S rRNA partial sequences. Plant Syst. Evol. 188: 73–86.Google Scholar
  9. Cronquist, A. 1981. See general references.Google Scholar
  10. Dahlgren, R.M.T., van Wyk, A.E. 1988. Structures and relationships of families endemic to, or centered in Southern Africa. Monogr. Syst. Bot. Missouri Bot. Gard. 25: 1–94.Google Scholar
  11. Diels, L. 1930. Roridulaceae. In: Engler, A., Prantl, K. Die natürlichen Pflanzenfamilien ed. 2, 18a. Leipzig: W. Engelmann, pp. 346–348.Google Scholar
  12. Ellis, A.G., Midgley, J.J. 1996. A new plant-animal mutualism involving a plant with sticky leaves and a resident Hemipteran insect. Oecologia 106: 478–481.CrossRefGoogle Scholar
  13. Erdtman, G. 1952. See general references.Google Scholar
  14. Fenner, C.A. 1904. Beiträge zur Kenntnis der Anatomie, Entwicklungsgeschichte und Biologie der Laubblätter und Drüsen einiger Insectivoren. Flora 93: 335–434.Google Scholar
  15. Hallier, H. 1912. L’origine et le système phylétique des angiospermes. Arch. Neerl. Sci. Exactes Nat., III. B 1: 146–234.Google Scholar
  16. Hutchinson, J. 1959. The families of flowering plants. Vol. 2. Monocotyledons, 2nd edn. Oxford: Clarendon Press.Google Scholar
  17. Jensen, S.R., Nielsen, B.J., Dahlgren, R. 1975. Iridoid compounds, their occurrence and systematic importance in the angiosperms. Bot. Not. 128: 148–180.Google Scholar
  18. Joel, D.M., Juniper, B.E., Dafni, A. 1985. UV patterns in the traps of carnivorous plants. New Phytol. 101: 585–594.CrossRefGoogle Scholar
  19. Juniper, B.E., Robins, R.J., Joel, D.M. 1989. Carnivorous plants. London: Academic Press.Google Scholar
  20. Kress, A. 1970. Zytotaxonomische Untersuchungen an einigen Insektenfängern (Droseraceae, Byblidaceae, Cephalotaceae, Roridulaceae, Sarraceniaceae). Ber. Deutsch Bot. Ges. 83: 55–62.Google Scholar
  21. Lloyd, F.M. 1934. Is Roridula a carnivorous plant? Can. J. Res. 10: 780–786.Google Scholar
  22. Lloyd, F.M. 1942. The carnivorous plants, 2nd edn. Waltham, Mass.: Chronica Botanica Co.Google Scholar
  23. Marloth, R. 1903. Some recent observations on the biology of Roridula. Ann. Bot. 17: 151–157.Google Scholar
  24. Marloth, R. 1910. Further observations on the biology of Roridula. Trans. Roy. Soc. S. Afr. 2: 59–61.Google Scholar
  25. Marloth, R. 1925. Roridulaceae. In: The Flora of South Africa vol. 2, part I. Cape Town: Darter Bros., pp. 26–30.Google Scholar
  26. Midgley, J.J., Stock, W.D. 1998. Natural abundance of Delta N-15 confirms insectivorous habit of Roridula gorgonias, despite it having no proteolytic enzymes. Ann. Bot. 82: 387–388.Google Scholar
  27. Obermeyer, A.A. 1970. Roridulaceae. In: Codd, L.E., DeWinter, B., Killick, D.J.B., Rycroft, H.B. (eds.) Flora of Southern Africa, vol. 13. Pretoria: National Botanical Institute, pp. 201–204.Google Scholar
  28. Peng, C.-I., Goldblatt, P. 1983. Confirmation of the chromosome number in Cephalotaceae and Roridulaceae. Ann. Missouri Bot. Gard. 70: 197–198.Google Scholar
  29. Planchon, J.É. 1848. Sur la famille des Droséracées. Ann. Sci. Nat. Bot. III, 9: 79–99.Google Scholar
  30. Solereder, H. 1908. Systematic anatomy of the Dicotyledons. Vol. 1, Introduction, Polypetalae and Gamopetalae. Oxford: Clarendon Press.Google Scholar
  31. Takhtajan, A.L. 1987. Systema Magnoliofitorum. Leningrad: Nauka (in Russian).Google Scholar
  32. Vani-Hardev, 1972. Systematic embryology of Roridula gorgonias Planch. Beitr. Biol. Pflanzen 48. 339–351.Google Scholar
  33. Zenk, M.H., Fürbringer, M., Steglich, W. 1969. Occurrence and distribution of 7-methyljuglone and plumbagin in the Droseraceae. Phytochemistry 8: 2199–2200.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • J. G. Conran

There are no affiliations available

Personalised recommendations