Epidendrum nanodentatum Hágsater & Dodson 2006 GROUP Nanum SUBGROUP Nanoecallosum

TYPE Drawing by © Jimenez and The AMO Herbaria Website

Common Name The Dwarf Toothed Epidendrum

Flower Size .8” [2 cm]

Found in Zamora Chinchipe province of Ecuador in the upper Amazon basin at elevations around 1000 to 1700 meters as a mini-miniature sized, cool growing epiphyte with branching, arising from the subapical internodes of the previous stem in mature plants, cane-like, laterally compressed, ancipitous, straight to slightly flexuous stems carrying 6 to 14, all along the stems, alternate, somewhat succulent narrowly elliptic-lanceolate, acute, apical margin minutely erose leaves that blooms in the winter on a terminal, subsessile, peduncle short, terete, provided at the middle with a prominent narrowly lanceolate, acute, conduplicate bract, simultaneously 2 flowered inflorescence with 2 narrowly lanceolate, acuminate, conduplicate floral bracts and carrying opposite, non-resupinate flowers with the sepals and petals transluscent pink, the lip greenish and the column reddish purple.

"Epidendrum nanodentatum belongs to the GROUP Nanum which is characterized by the Dichaea like pendent stems, the inflorescence produced by pairs of opposite flowers, without spathaceous bracts, without prominent floral bracts, and the SUBGROUP Nanoecallosumwhich has an entire lip. The species is recognized by the short, pendent habit, branchlng near the apex of the previous stem, the two opposite, nonresupinate pinkish colored flowers, the triangular, ecallose lip, and the short, lanceolate, acute petals, with an acute tooth on either side of the apex of the column. It is similar to Epidendrum renzii Garay & Dunst. which has longer stems, 4 pale green and wine-red lip flowers in two opposite pairs, a prominent vesicle on the underside of the ovary, resupinate flowers, and oblong to oblanceolate petals. Epidendrum nanosimplex Hágsater & Dodson is also similar, but has 6 to 7, resupinate, pale green and white flowers in opposite pairs, shorter sepals .16 to .24" [4 to 6 mm] long, narrowly oblanceolate petals, a truncate column, and the triangular, semiovate lip with a pair of prominent globose calli." Hagsater etal 2006


References W3 Tropicos, Kew Monocot list , IPNI ; * Icones Orchidacearum 8 Plate 857 Hagsater & Santiago 2006 drawing fide; Icones Orchidacearum 12 Plate 1267 Hagsater 2009 see recognition section; Icones Orchidacearum 17(2) Plate 1794 Hagsater & Jimenez 2020 see recognition section;