Cattleya rex Cattleya rex Cattleya rex is a species of epiphytic orchid of showy white flowers, native to montane forests in Peru and Bolivia. Epiphytic herb with cylindric or spindle-shaped pseudobulbs, up to 35 cm. high, with one leaf at the top. Leaf oblong or elliptic-oblong, obtuse, light green, up to 35 cm. long and up to 6 cm. wide, coriaceous. Inflorescence up to 20.3 cm. high, with 3 to 6 (or 10) flowers. Flowers large and showy, up to 17 cm wide, with sepals and petals being cream-colored or ivory white, except the lip or labellum, which is colored with yellow,
Portia labiata (Thorell, 1890), "Erasinus dentipalpis" (Thorell, 1892), "Erasinus labiatus" (Simon, 1903) and "Portia labiata" (Wanless, 1978), and the last name has been used since then. "Portia" is in the subfamily Spartaeinae, which is thought to be primitive. Molecular phylogeny, a technique that compares the DNA of organisms to reconstruct the tree of life, indicates that "Portia" is a member of the clade Spartaeinae, that Spartaeinae is basal (quite similar to the ancestors of all jumping spiders), that "Portia"′s closest relative is the genus "Spartaeus", and that the next closest are "Phaeacius" and "Holcolaetis". Portia labiata Portia labiata is a jumping spider