Epidendrum nanum C.Schweinf. 1943 GROUP Nanum type for the group

Plant and Flowers

Photos by © Milan Vagner

Partial shade WarmColdLATESummerFall

Common Name or Meaning The Small Flowered Epidendrum

Flower Size .4" [1 cm]

Found in Peru and Bolivia in wet montane forests at elevations of 600 to 2300 meters as a mini-miniature sized, warm to cold growing epiphyte with lightly compressed stems enveloped completely by imbricating leaf bearing sheaths and carrying lanceolate, acute, spreading, conduplicate into the base leaves that blooms in the late summer and fall on a subsessile, terminal, 1 to 3 flowered inflorescence subtended by conduplicate, imbricate, lanceolate bracts.

"Epidendrum nanum is part of the GROUP Nanum characterized by the dichaea-like pendant stems with pairs of opposing flowers on an inflorescence without spathaceous bracts and has prominent floral bracts. The species has larger flowers than the following species, with the sepals being .32 to .44" [8 to 11 mm] long, a long dentate clinandrium, and the midlobe of the lip triangular, acuminate. Epidendrum tingo-mariae has a 3-lobed lip, the slightly arched column with a prominent, erose clinandrium, the green f1owers, with the anther also green, and the short nectary that does not penetrate further than the perianth. Epidendrum milenae recorded from both Bolivia and Ecuador, and to be expected in Peru, has green flowers with a prominent purple anther, straight column with a short, entire clinandrium. Epidendrum nanosimplex Hágsater has a simple, entire lip, the vescicle of the ovary occupying about 1/3 of the ovary, and the entire clinandrium which slightly covers the anther. Epidendrum madsenii Hágsater & Dodson has a 3-lobed lip, a triangular, acute midlobe, a prominent dentate clinandrium, and the ornamentation of the anther consisting of a transverse, dentate process in front. Epidendrum macasense Hágsater & Dodson has shorter, narrower leaves, narrower petals, an unornamented anther, and an ovary which is not inflated and swollen into a vescicle at the base. In Epidendrum bonitense Hágsater & Dodson, the nectary does not reach the base of the ovary, the clinandrium is barely erose and the sepals are 4 to 5 veined, the midlobe of the lip is short-subquadrate and obtuse. Epidendrum lueri Dodson & Hágsater, is similar but has a differently dentate clinandrium, shorter midlobe of the lip and a prominent front ornamentation of the anther." adapted from E tingo-mariae Icones 3 Plate 388 Hagsater etal 1999


References W3 Tropicos, Kew Monocot list , IPNI ; Orchids of Peru Vol 2 Schweinfurth 1959; Miniature Orchids Northen 1980; Icones Orchidacearum 2 plate 113 Hagsater & Salazar 1993 see recognition section; Icones Orchidacearum 2 plate 155 Hagsater & Salazar 1993 see recognition section; Icones Orchidacearum 2 plate 192 Hagsater & Salazar 1993 see recognition section; Icones Orchidacearum Peruviarum Plate 246 Christenson 1995 drawing fide; Icones Orchidacearum 3 Plate 351 Hagsater 1999 see recognition section; Icones Orchidacearum 3 Plate 360 Hagsater & Sanchez 1999 see recognition section; Icones Orchidacearum 3 Plate 388 Hagsater 1999 see recognition section; I cones Orchidacearum 4 plate 448 Hagsater & Salazar 2001 see recognition section; Orchids of Bolivia Vol 2 Laelinae Vasquez and Ibisch 2004 drawing fide; Icones Orchidacearum 8 plate 857 Hagsater & Salazar 2006 see recognition section; Miniature Orchids, A Compendium Parsons and Gerritson 2013 photo fide; Orquideas, Tesoro de Colombia Vol 2 Ortiz & Uribe 2017 as E aff nanum drawing/photo fide; Icones Orchidacearum 17(1) Plate 1782 Hagsater & Jimenez 2019 see recognition section;