Epidendrum subsect. Carinata

Epidendrum subsect. Carinata <small>Rchb.f. (1861)</small> is a subsection of the section E.&nbsp;sect.&nbsp;Schistochila <small>Rchb.f. (1861)</small> of the subgenus E.&nbsp;subg.&nbsp;Amphiglottium <small>Lindl. (1841)</small> of the genus Epidendrum of the Orchidaceae (orchid family). This subsection differs from the subsection E.&nbsp;subsect.&nbsp;Integra in that the margins of the trilobate lip are dentate or lacerate. This subsection differs from the subsection E.&nbsp;subsect.&nbsp;Tuberculata by possessing a keel or carina on the midlobe of the lip. In 1861, Reichenbach listed nine species in this subsection.

• E.&nbsp;attenuatum <small>Lindl. (1853)</small> (p.&nbsp;389)
• E.&nbsp;calanthum <small>Rchb.f. & Warsz. (1854)</small> as E. calanthum (p.&nbsp;390) and E. paytense (p.&nbsp;391)
• E.&nbsp;cinnabarinum <small> ex Lindl. (1831)</small> (p.&nbsp;389)
• E.&nbsp;imatophyllum <small>Lindl. (1831)</small> (p.&nbsp;391) As of August 1, 2009, the World Checklist had no entry for this binomial, but accepted E.&nbsp;flexuosum <small>G.Mey. (1818)</small>, which Reichenbach 1861 lists as a possible synonym. Kew listed E.&nbsp;imantophyllum with the same reference to Lindley, 1831. Lindley 1831 spells it E.&nbsp;imatophyllum.
• E.&nbsp;fulgens <small>Brogn. (1834)</small> as a synonym of E.&nbsp;schomburgkii&nbsp;var.&nbsp;conflens (p.&nbsp;389-390)
• E.&nbsp;ibaguense <small>Kunth (1816)</small> as E.&nbsp;decipiens <small>Lindl. (1853)</small> (p.&nbsp;391) and E.&nbsp;schomburgkii&nbsp;var.&nbsp;conflens (p.&nbsp;389-390)
• E.&nbsp;macrocarpum <small>A.Rich. (1792)</small> as E.&nbsp;schomburgkii <small>Lindl. (1838)</small> (pp.&nbsp;389–390)
• E.&nbsp;radicans <small>Pav. ex Lindl.(1831)</small> (p.&nbsp;390)
• E.&nbsp;spicatum <small>Hook.f. (1851)</small> (p.&nbsp;389)

E.&nbsp;puniceoluteum was placed in E.&nbsp;subsect.&nbsp;Carinata in its publication as a new species in 2007.

E.&nbsp;denticulatum was also acknowledged to be in E.&nbsp;subsect.&nbsp;Carinata in Pinheiro and Barros 2007.

Cytology

The observed diploid chromosome numbers within Epidendrum&nbsp;subsect.&nbsp;Carinata are rather variable:

• 24 for E.&nbsp;flexuoxum and an individual of E.&nbsp;fulgens described as E.&nbsp;mosenii
• 28 for E.&nbsp;fulgens
• 30 for E.&nbsp;calanthum
• 40 for E.&nbsp;denticulatum and E.&nbsp;radicans
• 52 for E.&nbsp;puniceoluteum
• 60 for E.&nbsp;radicans
• 70 for E.&nbsp;ibaguense and E.&nbsp;radicans
• ~240 for E.&nbsp;cinnabarinum

References