Stenomesson is a genus of bulbous plants in the family Amaryllidaceae. All the species are native to western South America (Colombia, Ecuador, Peru and northern Chile).León, B., J. Roque, C. Ulloa Ulloa, N. C. A. Pitman, P. M. Jørgensen & A. Cano E. 2006 . El Libro Rojo de las Plantas Endémicas del Perú. Revista Peruana de Biología 13(núm. 2 especial): 1s–971s.Ravenna, P. 1971. Contributions to South American Amaryllidaceae IV. Plant Life 27: 61–89.Brako, L. & J. L. Zarucchi. (eds.) 1993. Catalogue of the Flowering Plants and Gymnosperms of Peru. Monographs in systematic botany from the Missouri Botanical Garden 45: i–xl, 1–1286Jørgensen, P. M., M. H. Nee & S. G. Beck. (eds.) 2014. Catálogo de las Plantas Vasculares de Bolivia, Monographs in systematic botany from the Missouri Botanical Garden 127(1–2): i–viii, 1–1744.Meerow, Alan W. 2000. Phylogeny of the American Amaryllidaceae based on nrDNA ITS sequences Systematic Botany 25(4):708-726
Taxonomy It was published by William Herbert in 1821. The lectotype species Stenomesson flavum was designated by Hamilton Paul Traub in 1963. Etymology The generic name Stenomesson references the floral morphology. It is composed of the Greek words stenos, meaning narrow, and meso, meaning "in the middle".Weber, O., & Wilkin, P. (2007). 588. STENOMESSON PEARCEI: Amaryllidaceae. Curtis's Botanical Magazine, 24(2), 114-120. Species , Plants of the World Online accepted the following species: Stenomesson aurantiacum (Kunth) Herb. - Colombia, Ecuador, Peru Stenomesson breviflorum Herb. - Peru (Junín, Lima) Stenomesson campanulatum Alan Meerow - Peru (Cajamarca, La Libertad) Stenomesson chilense Ravenna - Chile (Tarapacá) Stenomesson chloranthum Meerow & van der Werff - Peru (Amazonas) Stenomesson ecuadorense Meerow, Oleas & L.Jost Stenomesson flavum (Ruiz & Pav.) Herb. - Peru (Cajamarca, Lima, La Libertad, Pasco) Stenomesson gasteroides Ravenna - Peru Stenomesson korsakoffii (Traub) Meerow – Peru Stenomesson leucanthum (Ravenna) Meerow & van der Werff - Peru (Cajamarca, La Libertad) Stenomesson miniatum (Herb.) Ravenna - Peru (Cajamarca, Apurimac, Cusco), Bolivia (La Paz) Stenomesson moldenkei Traub - Peru (Lima) Stenomesson parvulum Ravenna - Peru (Cajamarca]) Stenomesson pauciflorum (Lindl. ex Hook.) Herb. - Peru (Lima) Stenomesson pearcei Baker - Peru (Junín, Puno, Cusco), Bolivia (La Paz) Stenomesson rupense Ravenna - Peru Stenomesson tubiflorum (Meerow) Meerow - Peru Stenomesson vitellinum Lindl. - Peru (Lima) Stenomesson weberbaueri (Vargas) Ravenna - Peru (Cajamarca])
Formerly includedKew World Checklist of Selected Plant Families Numerous names have been coined using the name Stenomesson referring to species now regarded as better suited to other genera (Clinanthus, Eucrosia, Ismene and Urceolina).
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