Epidendrum atypicum Hágsater & E.Santiago 2006 GROUP Oerstedella SUBGROUP Aberrans

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


Common Name The Atypical Epidendrum [refers to the lack of spreading apical lobes as with others in the Subgroup Aberrans]

Flower Size .8" [2 cm]

Found in Costa Rica in wet montane forests at elevations around 2400 meters as a small to medium sized, cold growing epiphyte with mature (after flowering) stems branching above, branches short, cane-like, terete stems carrying 11 to 16, in the upper half, alternate, lanceolate, acute, leaves that blooms in the late summer on a terminal, racemose, erect, 1.8 to 2.8"[4.5 to 7 cm] long including the .6 to .72" [1.5 to 1.8 cm] long terete peduncle, simultaneously many flowered inflorescence with a much shorter than the ovary, triangular, acuminate floral bracts and carrying resupinate, purple flowers.

"Epidendrum atypicum belonígs to the GROUP Oerstedella which is characterized by the sympodial habit, mostly verrucose stems, and the rostellum which is transverse to the column instead of parallel, forming a wide, open sinus, and SUBGROUP Aberrans which has small, membranaceous flowers with a prominent c1inandrium-hood, with unequal, bird-wing type pollinia, the inner pair much smaller than the outer pair and the pollinia very flat and translucent. The species is recognized by the simple midlobe of the lip, and very, prominent clinandrium-hood nearly twice as long as the body of the column, the inner pollinla are placed next to the thicker side of the outer pollina. It is closely related to E crescentilobum Ames whlch has somewhat smaller flowers and a 4-lobed lip. Epidendrum aberrans Schltr. has a 4-lobed lip, the narrow lobes are inserted at 45 degree angle. Epidendrum pachytepalum Hágsater & E.Santiago has somewhat larger flowers sepals .48 to .56" [12-14] long, fleshy thlckened towards the apex, a two-lobed midlobe, and the inner pair of pollina nearly 3/4's the length of the outer pair and placed in the midlobe of the pollinarium. Other specles with a three lobed lip and an entire midlobe have shorter c1inandria and the pollinia are subequally obovoid, with long, granulose caudicles and include Epidendrum fuscinum (Dressler) Hagsater which has .52 to .6" [13 to 15 mm] long sepals, the lateral lobes of the lip .28 to .4" [7 to 10 mm] long, and about 2-3 times longer than wide. Epidendrum intermixtum Ames, F.T.Hubb. & C.Schweinf. is endemic to central and western Costa Rica and is recognized by the small pale green and white flowers, with the sepals .24 to .36" [6.0 to 8.5 mm] long, the lip about .12 to .168" [3 to 4.2 mm] long, with the lateral lobes oblique, so as to look like a trident, wlth the three lobes aligned at the apex and all equally wide." Hagsater etal 2006


References W3 Tropicos, Kew Monocot list , IPNI ; *Icones Orchidaceaeum 8 Plate 810 Hagsater , Sanchez and Garcia-Cruz 2006 drawing fide; Icones Orchidacearum 8 Plate 822 Hagsater and Sanchez 2006 see recognition section; Icones Orchidacearum Vol 8 Plate 865 Hagsater & Sanchez 2006 see recognition section; Icones Orchidacearum Vol 8 Plate 895 Hagsater & Sanchez 2006 see recognition section;