All members of the genus Lysipomia (Campanulaceae) are endemic to high elevations (~3,000 m) of the Andean mountain chain of South America, making this genus a unique member of the bellflower family. Lysipomia sphagnophila along with a small number of additional species appeared to form a monophyletic group within this genus in a preliminary phylogenetic analysis based on ITS sequence data. Due to a high degree of morphological similarity, species and subspecies delimitations within this complex remain tentative. nrITS sequence data may aid in clarifying species and subspecies relationships as well as in determining the possible monophyly of this group. ITS data may also be useful in a biogeographical interpretation of this complex including aspects such as species origin and subsequent radiation. Sequences for the entire ITS and accompanying 5.8S region of nrDNA were obtained for all members of this complex by direct double-stranded sequencing of PCR amplified DNA. Results of this phylogenetic analysis will be presented.

Key words: Lysipomia sphagnophila , biogeography, ITS, nrDNA, phylogeny