Skip to main content
Log in

Phylohydrax (Rubiaceae-Spermacoceae)—a new genus to accommodate the African and Madagascan“Hydrophylax” species

  • Published:
Plant Systematics and Evolution Aims and scope Submit manuscript

Abstract

Hydrophylax, a genus of maritime strand or dune plants, was previously thought to comprise three species, one from India, Sri Lanka and Thailand (H. maritima), and two from Africa and Madagascar (“H.” carnosa and “H.” madagascariensis respectively). Evidence is presented that the African and Madagascan species are better placed into a separate genus (Phylohydrax). Differential characters betweenH. maritima andP. carnosa—P. madagascariensis, the relationships between the three species, and the affinities ofPhylohydrax andHydrophylax to otherSpermacoceae are discussed in detail.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Britton, N. L., 1908: The genusErnodea Swartz: a study of species and races. — Bull. Torrey Bot. Cl.35, 203–208.

    Google Scholar 

  • Cooke, T., 1903: The Flora of the Presidency of Bombay1. — London: Taylor & Francis.

    Google Scholar 

  • Correll, D. S., 1977: New species and a new combination from the Bahamas, Caicos and Turks Islands. — J. Arnold Arb.58, 40–51.

    Google Scholar 

  • Denis, M., 1919: Recherches anatomiques sur quelques plantes littorales de Madagascar. — Rev. Gén. Bot.31, 115–120.

    Google Scholar 

  • Dyer, R. A., 1975: The Genera of Southern African Flowering Plants1. — Pretoria: Dept. Agric. Techn. Serv.

    Google Scholar 

  • Ganapathy, P. M., 1956: Floral morphology and embryology ofHydrophylax maritima L. f. — J. Madras Univ., B,26, 263–275.

    Google Scholar 

  • Hooker, J. D., 1873: Ordo LXXXIV.Rubiaceae. — InBentham, G., Hooker, J. D. (Ed.): Genera Plantarum2, 7–151. — London: Reeve.

    Google Scholar 

  • Kiehn, M., 1985: Karyosystematische Untersuchungen anRubiaceae: Chromosomenzählungen aus Afrika, Madagaskar und Mauritius. — Pl. Syst. Evol.149, 89–118.

    Google Scholar 

  • - 1986: Karyologische Untersuchungen und DNA-Messungen anRubiaceae und ihre Bedeutung für die Systematik dieser Familie. — Diss. Formal- u. Naturwiss. Fak. Univ. Wien.

  • Krauss, F., 1844: Pflanzen des Cap- und Natal-Landes. — Flora27, 551–556.

    Google Scholar 

  • Linnaeus, C., 1781: Supplementum plantarum⋯ — Brunsvigae: Imp. Orphanotrophei.

    Google Scholar 

  • Puff, C., 1986: A biosystematic study of the African and MadagascanRubiaceae — Anthospermeae. — Pl. Syst. Evol., Suppl.3, 1–535.

    Google Scholar 

  • Rao, T. A., Das, G. C., 1971: A contribution to the ecological anatomy of maritime strand plants of India. — Bull. Bot. Surv. India13, 319–327.

    Google Scholar 

  • Robbrecht, E., 1982: Pollen morphology of the tribesAnthospermeae andPaederieae (Rubiaceae) in relation to taxonomy. — Bull. Jard. Bot. Nat. Belg.52, 349–366.

    Google Scholar 

  • - 1987: Pollen morphology ofPhylohydrax andHydrophylax compared to some otherSpermacoceae (Rubiaceae). — Pl. Syst. Evol. (in prep.).

  • Robson, N. K. B., 1978:Brexiaceae. — InLaunert, E. (Ed.): Flora Zambesiaca4, 59–61. — London: Fl. Zamb. Manag. Comm.

    Google Scholar 

  • Roemer, J. J., Schultes, J. A., 1818: Systema vegetabilium3. — Stuttgart.

  • Roxburgh, W., 1819: Plants of the coast of Coromandel3. — London: Bulmer.

    Google Scholar 

  • Schumann, K., 1891:Rubiaceae. — InEngler, A., Prantl, K. (Ed.): Die natürlichen PflanzenfamilienIV, 4, 1–156. — Leipzig: Engelmann.

    Google Scholar 

  • Sonder, O. W., 1865:Rubiaceae. — InHarvey, W. H., Sonder, O. W. (Ed.): Flora Capensis3, 1–39. — Dublin: Hodges, Smith & Co.

    Google Scholar 

  • Verdcourt, B., 1968:Brexiaceae. — InMilne-Redhead, E., Polhill, R. M. (Ed.): Flora of Tropical East Africa: 1–3. — London: Crown Ag.

    Google Scholar 

  • —, 1976:Rubiaceae, Part 1. — InPolhill, R. M. (Ed.): Flora of Tropical East Africa: 1–414. — London: Crown Ag.

    Google Scholar 

  • Ward, C. J., 1980: The plant ecology of the Isipingo Beach area, Natal, South Africa. — Mem. Bot. Surv. S. Afr.45, 1–147.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Puff, C. Phylohydrax (Rubiaceae-Spermacoceae)—a new genus to accommodate the African and Madagascan“Hydrophylax” species. Pl Syst Evol 154, 343–366 (1986). https://doi.org/10.1007/BF00990132

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00990132

Key words

Navigation