This 2004 release in this folio series continues Carl Luer's taxonomic consideration of these pleurothallid orchids. Fifteen species are illustrated by Stig Dalström: Masdevallia bennettii Luer, M.deniseana Luer & J. Portillo, M.gloriae Luer & Andreetta, M. immensa Luer, M. instar Luer & Andreetta, M. louii Luer & Dalstrom, M. medinae Luer & J. Portilla, M. merinoi Luer & J. Portillo, M. os viperae Luer & Andreetta, M. pleurothalloides Luer, M. proboscoidea Luer & V.N.M. Rao, M. rana aurea Luer, M. x splendida Rchb. f., M. stigii Luer & L. Jost, and M. zamorensis Luer & J. Portillo. Accompanying each full-page watercolor illustration is the species taxonomic description, discussion, black-and-white line art, and distribution map. The elephant folio (11.75 x 16.5 inches) series is gum-bound to facilitate binding with previous fascicles from the series or for splitting as individual art prints.