Epidendrum Ibaguense

''Epidendrum ibaguense'' (pronounced ee-bah-GAIN-say) is a species of epiphytic orchid of the genus Epidendrum which occurs in Trinidad, French Guiana, Venezuela, Colombia and Northern Brazil.

Taxonomy

According to Reichenbach, ''E. ibaguense'' belongs to the subsection ''Tuberculata'' Rchb.f. of section ''Schistochila'' Rchb.f. of subgenus ''Amphiglotium'' Lindl..

According to Kew, ''E. decipiens'' Lindl. (1853) (p. 391, Reichenbach 1861)) and ''E. schomburgkii'' var. ''confluens'' (p. 389-390, Reichenbach 1861) are synonyms of ''E. ibaguense''; according to Reichenbach 1861, these two separate species belong to the subsection ''Carinata''.

Other synonyms (according to Kew) :
* ''Epidendrum decipiens'' Lindl., 1853
* ''Epidendrum schomburgkii'' var. ''confluens'' Lindl., 1853
* ''Epidendrum chrysostomum'' Rchb.f.,1856
* ''Epidendrum bituberculatum'' Rolfe, 1892
* ''Epidendrum planiceps'' Kraenzl., 1911
* ''Epidendrum laetum'' Schltr., 1919
* ''Epidendrum fraternum'' Schltr., 1920
* ''Epidendrum smithii'' Schltr., 1920
* ''Epidendrum sororium'' Schltr., 1920
* ''Epidendrum miquelii'' Schltr., 1925
* ''Epidendrum ibaguense'' var. ''confluens'' (Lindl.) C.Schweinf., 1944

Description

Like the other members of ''Epidendrum'' subgenus ''Amphiglotium'' Lindl., ''E. ibaguense'' exhibits a pseudo-monopodial growth habit: it produces a vertical stem covered with the sheathing bases of distichous leaves and without the swelling typical of the pseudobulbs found in many sympodial orchids. However, ''E. ibaguense'' is actually sympodial: the peduncle of the inflorescence, tightly covered for most of its length by thin, overlapping sheaths, is terminal, not lateral. A new growth is then (usually) produced from near the base of the old one, although ''E. ibaguense'' will frequently produce a keiki from an old inflorescence. Like the other members of ''Epidendrum Amphiglotium'' section ''Schistochila'' Rchb.f., ''E. ibaguense'' flowers are borne on a congested, successively flowering raceme at the end of a long peduncle, and have a trilobate lip that is adnate to the column to the very apex. Like the members of the subsections ''Carinata'' Rchb.f. and ''Tuberculata'' Rchb.f., the three lobes of the ''E. ibaguense'' lip are deeply fringed or lacerate. Like '' E. radicans'', (but unlike '' E. secundum'' Jacq., '' E. fulgens'', '' E. puniceoluteum'', and '' E. cinnabarinum'') the flowers of ''E. ibaguense'' are resupinate. ''E. ibaguense'' differs from '' E. radicans'' by producing most of its roots from near the bottom of the stem, and producing stems that "really stand up." Like '' E. secundum'' Jacq. and '' E. radicans'', different individuals of ''E. ibaguense'' can produce flowers that are lavender, red, orange, or yellow.

The chromosome number of an individual collected in Serra Pacaraina, Brazil, has been determined as 2n = 70.Fábio Pinheiro, Samantha Koehler, Andréa Macêdo Corrêa, Maria Luiza Faria Salatino, Antonio Salatino & Fábio de Barros. "Phylogenetic relationships and infrageneric classification of ''Epidendrum'' subgenus ''Amphiglottium'' (Laeliinae, Orchidaceae)", ''Plant Systematics and Evolution'' published online 25 September 2009. Springer Wien. https://doi.org/10.1007%2Fs00606-009-0224-2

References

External links

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* A photograph of the flowers may be found at: https://www.flickr.com/photos/toddboland/3967978457/

{{Taxonbar, from=Q990046

ibaguense
Orchids of Brazil
Orchids of Colombia
Orchids of French Guiana
Orchids of Venezuela
Orchids of Trinidad