Epidendrum parviexasperatum (Hágsater) Hágsater 2005 GROUP Oerstedella SUBGROUP Verrucosum

Photo by © Eric Hagsater and The The Epidendra Website

TYPE Drawing

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

Common Name or Meaning The Smaller Exasperatum Epidendrum

Flower Size .6" [1.5 cm]

Found in Costa Rica and Panama at elevations around 1300 to 3000 meters as a giant sized, cool to cold growing epiphyte with a simple, cane-like, terete, thin, erect, straight, keiki producing stem enveloped basally by purple warted, non-foliaceous sheaths and carrying 4 to 8, throughout the apical 2/3's, alternate, articulate, narrowly elliptic to lanceolate, bilobed, subcoriaceous leaves with a low dorsal keel and small purple warted, tubular sheaths that blooms in the winter through spring on a terminal and lateral, racemose, erect, peduncle terete, thin, short, .24 to .32" [6 to 8 mm] long, rachis terete, thin, short, zig-zag .4 to .8" [1 to 2 cm] long, lax, 3 to 5 flowered inflorescence with shorter than the ovary, ovate-triangular, acute floral bracts.

"Epidendrum parviexasperatum belongs to the GROUP Oerstedella which 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 witnout a viscidium and the SUBGROUP Verrucosum, recognized by the small to medium sizeá, membranaceous flowers with sepals and petals immaculate, a bilobed clinandrium-hood slightly surpassing the body of the column, obovoid, subequal pollinia with long granulose caudides. The species is recognized by the keiki-producing stems, the greenish brown flowers with the lip tinged with violet, the sepals dorsally rugose-pustulate, the 3- lobed lip with the lateral lobes of the lip truncate without forming acuminate teeth. It is very similar to Epidendrum exasperatum C.Schweinf. whlch has larger flowers and plants, the sheaths of the stem only havlng brown dots, but no warts, the dorsal surface of the sepals exasperate, aculeate-verrucose and the 3-lobed lip with the inner corner of the lateral lobes with a prominent, acuminate tooth." Hagsater etal 2006

Synonyms *Oerstedella parviexasperata Hágsater 1993

References W3 Tropicos, Kew Monocot list , IPNI ; Orquídea (Mexico City), n.s., 13(1-2): 219 Hagsater 1993 as Oerstedella parviexasperatum drawing/photo fide; Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003 as Oerstedella parviexasperata; *Lankesteriana 5(1): 74 Hagsater 2005; Icones Orchidacearum Vol 8 Plate 831 Hagsater & Sanchez 2006 see recognition section; Icones Orchidacearum 8 plate 868 Hagsater & Sanchez 2006 drawing fide; Icones Orchidacearum 9 Plate 931 Hagsater 2007 see recognition section; Icones Orchidacearum 11 Plate 1145 Hagsater 2008 see recognition section; Orchids of Costa Rica Vol 3 Morales 2009 photo fide; Vanishing Beauty, Native Costa Rican Orchids Vol 2 Lacaena to Pteroglossa Pupulin 2020 photo ok