Epidendrum macdougallii (Hágsater) Hágsater 2005 GROUP Oerstedella SUBGROUP Verrucosum

TYPE Drawing

Photo by Eric Hagsater/TYPE Drawing by © Jimenez, Hágsater & E.Santiago and The AMO Herbario Website

Common Name or Meaning Macdougall's Epidendrum [American Orchid Collector in southern Mexico mid to later 1900's]

Flower Size .6" [1.5 cm]

Found in southern Mexico on the Pacific coast in canyons at elevations around 850 to 1700 meters as a small to large sized, warm to cool growing terrestrial in clayey soils with a simple, cane-like, terete, thin, erect, straight stem carrying 6 to 26, throughout the stem, alternate, articulate, spreading, linear-lanceolate, grasslike, acute, smooth, green leaves that blooms in the winter through summer on a terminal, occuring only once, erect, terete, thin, straight, 1.8 to 8.4" [4.5 to 21 cm] long including the .8 to 6.2" [2 to 15.5 cm] long peduncle, racemose to paniculate, 7 to 25 flowered inflorescence with much shorter than the ovary, triangular, acuminate floral bracts.

"Epidendrum macdougallii belongs to the GROUP Oerstedellawhich is characterized by the sympodial habit, mostly verrucose stems, and the rostellum which is perpendicular to the axis of the column instead of parallel, forming a wide, open sinus and without a viscidium, and the Oerstedella SUBGROUP Verrucosum recognized by the small to medium sized, membranaceous flowers with the sepals and petals immaculate, a bilobed clinandrium hood slightly surpassing the body of the column, obovoid, subequal pollinia with long, granulose caudicles. The species is recognized by the simple, thin stems, grass-like linear-lanceolate leaves, the peduncle of the inflorescence with 2 to 5 tubular bracts, small lilac-pink flowers with sepals.2 to .28" [5 to 7 mm] long, the lip with acute lateral lobes. It is similar to Epidendrum myrianthum Lindl. which has much larger, more robust plants with paniculate, many flowered inflorescence, and the lateral lobes of the lip rounded, and the .28 to .4" [7 to 10 mm] long sepals are proportionately wider. Epidendrum aberrans Schltr. has similar flowers, but the lip is usually white, and has a much longer, narrower column, is always epiphytic, forms keikies along the stems and has somewhat larger flowers with sepals .28 to .4" [7 to 10 mm] long; the pollinia are however very different, of the bird-wing type, unequal, with laminar caudicles, and belongs to the GROUP Oerstedella SUBGROUP Aberrans." Hagsater etal 2006

Synonyms *Oerstedella macdougallii Hágsater 1993

References W3 Tropicos, Kew Monocot list , IPNI ; Orquídea (Mexico City), n.s., 13(1-2): 222-226, f. Hagsater 1993 as Oerstedella macdougallii drawing/photo fide; Icones Orchidacearum 8 Plate 815 Hagsater and Sanchez 2006 see recognition section; Icones Orchidacearum 8 plate 852 Hagsater & Sanchez 2006 drawing fide; Icones Orchidacearum Vol 8 Plate 856 Hagsater & Sanchez 2006 see recognition section; Icones Orchidacearum Vol 8 Plate 860 Hagsater & Sanchez 2006 see recognition section; Icones Orchidacearum Vol 8 Plate 897 Hagsater & Sanchez 2006 see recognition section; Guia de Orquideas de Chiapas Carlos Rommel Beutelspacher Baigts 2013 photo fide; Algunas Orquideas de Mexico Tomo 1 Suarez 2013 photo fide; Orchid Genera and Species in Guatemala Archila, Szlachchetko, Chiron, Lipinska, Mystkowska and Bertolini 2018