Epidendrum subsect. Carinata Rchb.f. (1861) is a subsection of the section E. sect. Schistochila Rchb.f. (1861) of the subgenus E. subg. Amphiglottium Lindl. (1841) of the genus Epidendrum of the Orchidaceae (orchid family). This subsection differs from the subsection E. subsect. Integra in that the margins of the trilobate lip are dentate or lacerate. This subsection differs from the subsection E. subsect. Tuberculata by possessing a keel or carina on the midlobe of the lip. In 1861, Reichenbach listed nine species in this subsection.Reichenbach, H. G. "ORCHIDES" in Müller, Carl, Ed. Walpers Annales Botanices Systematicae 6(1861)373-397. Berlin. 1861.
E. attenuatum Lindl. (1853) (p. 389) E. calanthum Rchb.f. & Warsz. (1854) as E. calanthum (p. 390) and E. paytense (p. 391) E. cinnabarinum ex Lindl. (1831) (p. 389) E. imatophyllum Lindl. (1831) (p. 391) As of August 1, 2009, the World Checklist had no entry for this binomial, but accepted E. flexuosum G.Mey. (1818),apps.kew.org/wcsp/ which Reichenbach 1861 lists as a possible synonym. Kew listed E. imantophyllum with the same reference to Lindley, 1831. Lindley 1831 spells it E. imatophyllum.Lindley, J. The Genera and Species of Orchidaceous Plants pp. 106-107, Ridgways. London. April 1830 to October 1840. Found at https://www.biodiversitylibrary.org/item/9889 E. fulgens Brogn. (1834) as a synonym of E. schomburgkii var. conflens (p. 389-390) E. ibaguense Kunth (1816) as E. decipiens Lindl. (1853) (p. 391) and E. schomburgkii var. conflens (p. 389-390) E. macrocarpum A.Rich. (1792) as E. schomburgkii Lindl. (1838) (pp. 389–390) E. radicans Pav. ex Lindl.(1831) (p. 390) E. spicatum Hook.f. (1851) (p. 389)
E. puniceoluteum was placed in E. subsect. Carinata in its publication as a new species in 2007.Pinheiro, F., and Barros, F.: "Epidendrum puniceoluteum, uma nova especie de Orchidaceae do litoral brasileiro" Hoehnea 33(2):247-250, 2007
E. denticulatum was also acknowledged to be in E. subsect. Carinata in Pinheiro and Barros 2007.
Cytology The observed diploid chromosome numbers within Epidendrum subsect. Carinata are rather variable:page 251 of Leonardo P. Felix and Marcelo Guerra: "Variation in chromosome number and the basic number of subfamily Epidendroideae (Orchidaceae)" Botanical Journal of the Linnean Society 163(2010)234-278. The Linnean Society of London. downloaded October 2010 from http://onlinelibrary.wiley.com/doi/10.1111/j.1095-8339.2010.01059.x/pdf
24 for E. flexuoxum and an individual of E. fulgens described as E. mosenii 28 for E. fulgens 30 for E. calanthum 40 for E. denticulatum and E. radicans 52 for E. puniceoluteum 60 for E. radicans 70 for E. ibaguense and E. radicans ~240 for E. cinnabarinum
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