Rufodorsia
Rufodorsia is a genus of epiphytic flowering plants in the family Gesneriaceae. The genus name refers to the reddish back of the upper lobes of the flower. The relationship of "Rufodorsia" with the genus "Oerstedina" is uncertain, . It is native to montane cloud forest in Central America. Description. "Rufodorsia" species are epiphytic perennial plants, with little-branched upright or hanging stems. The leaves are opposite and of similar sizes with a leathery blade. The inflorescence is an axillary cyme with one to ten flowers. The flowers are short, with fused petals forming a bell shape. The free ends of  the petals (lobes) differ: the lowest is larger, making the flower appear two-lipped. The flower is whitish, except for the back of the upper two lobes which is reddish. There are four stamens, included within the flower. The fruit is an almost translucent white berry with fleshy pulp. Taxonomy. The genus was erected by Hans Joachim Wiehler in 1975 for four species, three new and one originally described in the genus "Besleria". The genus name is derived from Latin ' 'red' and ' 'back', referring to the reddish back of the flowers. Molecular phylogenetic studies have shown a sister relationship to  the genus "Oerstedina", and in 2010, Ricardo Kriebel transferred one species from "Oerstedina" to "Rufodorsia" as "Rufodorsia cerricola". However, the other two species of "Oerstedina" have not been formally transferred , so the two genera are not fully synonymized. Species. Four species were originally placed in the genus, and are recognized in a 2020 list of New World members of the family Gesneriaceae, as well as by Plants of the World Online : One additional species transferred from "Oerstedina" is accepted by Plants of the World Online : Distribution and habitat. The four original species of "Rufodorsia" are native to Central America, from  Nicaragua through Costa Rica to Panama. They are found in montane cloud forest and sub-cloud forest at altitudes of , "R. major" at the lowest levels and "R. congestiflora" at the highest.