Epidendrum dichotomum
Introduction '''''Epidendrum dichotomum'' C.Presl (1827)''' is a member of the ''E. secundum'' group which can grow terrestrially, on rocks, and in trees. Kew accepts it as a separate species without any synonyms., as did H. G. Reichenbach (1861). In Schweinfurth (1960), ''E. dichotomum'' is the accepted name of a species distinct from ''E. secundum'', but with several listed synonyms: ''E. brachyphyllum'', ''E. lindenii'', ''E. cuzcoense'', ''E. tarmense'', and ''E. inconstans''. In Schweinfurth (1970), ''E. dichotomum'' is reduced to synonymy under ''E. secundum''.
Description ''E. dichotomum'' is quite similar to ''E. secundum''. According to H. G. Reichenbach (1861), it is distinguished by a small lip, an entire clinandrium, and an unlobed tubercle with a pair of smaller calli near its base. According to Schweinfurth (1960), the tubercle (described as a callus) has three to five lobes with two additional lobes extending into each lateral lobe of the lip. The original description makes no mention of the tubercle, but simply compares ''E. dichotomum'' to both ''E. fimbriato'' and  ''E. ibaguense'', and notes that it differs sufficiently from both of them.
Homonymy The homonym ''Epidendrum dichotomum'' Lindl. (1838), ''nom. illeg.'' is a synonym for the different species, ''Epidendrum jamaicense'' Lindl. (1853)
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