Astrocasia is a plant genus of the family Phyllanthaceae first described as a genus in 1905.Robinson, Benjamin Lincoln & Millspaugh, Charles Frederick. 1905. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 36(Beibl.80): 19-20 descriptions in Latin, commentary in German It is included in the subtribe Astrocasiinae. It is native to Mesoamerica, northern South America, and the western part of the West Indies.Kew World Checklist of Selected Plant FamiliesGovaerts, R., Frodin, D.G. & Radcliffe-Smith, A. (2000). World Checklist and Bibliography of Euphorbiaceae (and Pandaceae) 1-4: 1-1622. The Board of Trustees of the Royal Botanic Gardens, Kew.González Ramírez, J. 2010. Euphorbiaceae. En: Manual de Plantas de Costa Rica. Vol. 5. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.). Monographs in systematic botany from the Missouri Botanical Garden 119: 290–394.Martínez Gordillo, M., J. J. Ramírez, R. C. Durán, E. J. Arriaga, R. García, A. Cervantes & R. M. Hernández. 2002. Los géneros de la familia Euphorbiaceae en México. Anales del Instituto de Biología de la Universidad Nacional Autónoma de México, Botánica 73(2): 155–281.Webster, G. L. & M.J. Huft. 1988. Revised synopsis of Panamanian Euphorbiaceae. Annals of the Missouri Botanical Garden 75(3): 1087–1144Calderón Sanou, I. 2014. Primer registro de Astrocasia peltata (Euphorbiaceae) en Costa Rica. Journal of the Botanical Research Institute of Texas 8(1): 165–168 Plants are mostly dioecious, except for Astrocasia diegoae which is monoecious, and some individuals of A. neurocarpa and A. tremula.
Species Astrocasia austinii (Standl.) G.L.Webster - Izabal Astrocasia diegoae J.Jiménez Ram. & Mart.Gord. - Guerrero Astrocasia jacobinensis (Müll.Arg.) G.L.Webster - Bahia, Bolivia Astrocasia neurocarpa (Müll.Arg.) I.M.Johnst. ex Standl. - Oaxaca, Querétaro, San Luis Potosí, Tamaulipas Astrocasia peltata Standl. - Costa Rica, Nayarit, Jalisco Astrocasia tremula (Griseb.) G.L.Webster - Mexico (Jalisco, Veracruz, Yucatán Peninsula), Central America (Belize, Guatemala, Costa Rica, Panama), West Indies (Cayman Is, Jamaica, Cuba), northern South America (Colombia, Venezuela, possibly Brazil)
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