Anales del Jardín Botánico de Madrid, Vol 65, No 2 (2008)

Araracuara, the new genera of the Rhamnaceae from Colombian Amazon

José Luis Fernández-Alonso
Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Colombia

María Victoria Arbeláez
Institute for Biodiversity and Ecosystem Dynamics (IBED), Universiteit van Amsterdam,


Araracuara Fern. Alonso, a new genus of Rhamnaceae only known from the sandstone plateaus of the Colombian Amazon, is described and illustrated. Its possible affinities are discussed and it is proposed that this is a relictual genus related to the pantropical Colubrina and to a lesser degree with the Amazonian Ampelozizyphus. Also included are both a key to the Colombian genera of Rhamnaceae and a list of representative specimens of the genera studied (some of which have been poorly documented in Colombia).


Colombian amazonia; Ampelozizyphus; Araracuara; Colubrina; keys; New Genus; Rhamnaceae; Taxonomy

Full Text:



Arbeláez, M.A. & Callejas, R. 1999. Flórula de la meseta de arenisca de la comunidad de Monochoa (Región de Araracuara, Medio Caquetá). Estudios en la Amazonía colombiana 19. 296 pp. Tropenbos Colombia. Bogotá.

Arbeláez, M.V. & Duivenvoorden, J.F. 2004. Patterns of plant species composition on Amazonian sandstone outcrops in Colombia. Journal of Vegetation Science 15: 181-188. doi:10.1658/1100-9233(2004)015[0181:POPSCO]2.0.CO;2

Cleef, A.M. & Duivenvoorden, J.F. 1994. Phytogeographyc analysis of a vascular species sample from the Araracuara Sandstone Plateau, Colombian Amazonia. Memoires de la Societé Biogeographique (3eme serie) 4: 68-51.

Cuatrecasas, J. 1958. Aspectos de la vegetación natural de Colombia. Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales 10(40): 221-268.

Duivenvoorden, J.F. & Lips, J.M. 1993. Ecología del paisaje del medio Caqueta. Vol IIIA-B. Memoria explicativa de los mapas. Estudios en la Amazonia Colombiana. Tropenbos-Colombia, Bogotá.

Fernández-Alonso, J.L. 1997. Nueva especie de Condalia Cav. (Rhamnaceae) y notas sobre los géneros de la familia en la flora de Colombia. Caldasia 19(1-2): 101-108.

Figueiredo, E. 1996. A revision of Lasiodiscus (Rhamnaceae). Kew Bulletin 50: 495-526. doi:10.2307/4110324

Huber, O. 1988. Guayana highland versus Guayana lowlands, a reappraisal. Taxon 37: 598-614. doi:10.2307/1221102

Johnston, M.C. 1971. Revision of Colubrina (Rhamnaceae). Brittonia 23: 2-53. doi:10.2307/2805841

Johnston, M.C. 1974. Revision of Scutia (Rhamnaceae). Bulletin of the Torrey Botanical Club 101: 64-71. doi:10.2307/2484536

Medan, D. & Hilger, H.H. 1992. Comparative flower and fruit morphogenesis in Colubrina (Rhamnaceae) with special reference to C. asiatica. American Journal of Botany 79(7): 809-819. doi:10.2307/2444948

Medan, D. & Schirarend, C. 2004. Rhamnaceae, pp. 320-338. In: Kubitzki, K.? (ed.), The families and genera of Vascular Plants VI. Flowering Plants. Dicotiledones. Springer-Verlag, Germany. Richardson, J.E., Fay, M.F., Cronk, Q.C.B. & Chase, M.V. 2000a. A revision of the tribal classification of Rhamnaceae. Kew Bulletin 55: 311-340.

Richardson, J.E., Fay, M.F., Cronk, Q.C.B., Bowman, D. & Chase, M.V. 2000b. A phylogenetic analysis of Rhamnaceae using rbcL and trnL-F platid DNA sequences. American Journal of Botany 87: 1309-1324. doi:10.2307/2656724 PMid:10991902

Schatz, G.E. 2001. Rhamnaceae, pp. 308-311. Generic Tree flora of Madagascar. Royal Botanic Gardens Kew & Missouri Botanical Garden.

Steyermark, J.A. & Berry, P.E. 2004. Rhamnaceae, pp. 473-484. In: Berry, P.E., Yatskievych, K. & Holst, B.K.(eds.), Flora of the Venezuelan Guayana 8 (Poaceae-Rubiaceae). Missouri Botanical Garden Press.

Suessenguth, K. 1953. Rhamnaceae. In: Engler, A. & Prant, K. (eds.), Die Naturlichen Pflanzenfamilien 20d: 7-173. Duncker & Humboldt, Berlin.

Tortosa, R.D. 1996. Morphological studies in the tribe Colletieae (Rhamnaceae): analysis of architecture and inflorescences. Botanical Journal of the Linnean Society 122: 353-367.

Tortosa, R.D. 2005. Johnstonia, a new genus of Gouanieae (Rhamnaceae) from Peru. Novon 15: 642-645.

Tortosa, R.D. 2006. The new name Johnstonalia substitutes for Johnstonia (Rhamnaceae). Novon 16(3): 433. doi:10.3417/1055-3177(2006)16[433:TNNJSF]2.0.CO;2

Copyright (c) 2008 Consejo Superior de Investigaciones Científicas (CSIC)

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Contact us:

Technical support: