Hymenostephium
| Hymenostephium | |
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| Genus: | Hymenostephium |
| Type species | |
| Hymenostephium mexicanum | |
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Hymenostephium is a genus of flowering plants in the family Asteraceae. It includes herbs and slender shrubs that occur from Mexico through Central America and into South America.[1][2]
Hymenostephium is characterized by the relatively slender habit of the plants, 1-2 seriate involucres, and relatively small heads of flowers. There is variation in the pappus which, in part, has led to the members having been placed formerly in several different genera (Garcilassa, Haplocalymma, and Viguiera sect. Diplostichis). Molecular phylogenetic data [3] place the genus as sister to Sclerocarpus and in a relatively basal position in the subtribe Helianthinae, the group that includes the common sunflower (Helianthus annuus).[4]
- Species
- Hymenostephium angustifolium Benth. - Colombia
- Hymenostephium anomalum (S.F.Blake) E.E.Schill. & Panero - Colombia
- Hymenostephium brandegeei (S.F.Blake) E.E.Schill. & Panero - Baja California
- Hymenostephium debile (Cabrera) Cabrera - Argentina (Jujuy + Salta), Bolivia (Santa Cruz)
- Hymenostephium goebelii (Klatt) S.F.Blake - Venezuela
- Hymenostephium gracillimum (Brandegee) E.E.Schill. & Panero - Oaxaca, Chiapas
- Hymenostephium hintonii (H.Rob.) E.E.Schill. & Panero - Guerrero, Michoacán
- Hymenostephium lepidostephanum (Cuatrec.) E.E.Schill. & Panero - Peru
- Hymenostephium meridense S.F.Blake - Venezuela
- Hymenostephium mucronatum (S.F.Blake) E.E.Schill. & Panero - Colombia, Venezuela
- Hymenostephium serratum (Rusby) E.E.Schill. & Panero - Colombia, Venezuela
- Hymenostephium tenuis (A.Gray) E.E.Schill. & Panero - Oaxaca, Chiapas, Guerrero, Michoacán, Puebla, México State, Jalisco, Nayarit
- Hymenostephium uniseriatum E.E.Schill. & Panero - Morelos, Guerrero, Michoacán, Puebla, México State
- Hymenostephium viride Steyerm. - Venezuela
- Hymenostephium websteri (B.L.Turner) E.E.Schill. & Panero - Jalisco, Nayarit
- Hymenostephium woronowii (S.F.Blake) E.E.Schill. & Panero - Michoacán
References
- ^ Bentham, George in Bentham, George & Hooker, Joseph Dalton. 1873. Genera plantarum :ad exemplaria imprimis in Herberiis Kewensibus servata definita 2: 382 in Latin
- ^ Tropicos, Hymenostephium Benth.
- ^ Schilling, E. E. and J. L. Panero. 2002. A revised classification of subtribe Helianthinae (Asteraceae, Heliantheae). Botanical Journal of the Linnean Society 140: 65-76.
- ^ Turner, Billie T. 2013. Recension of the Mexican species of Hymenostephium (Asteraceae:Helianthese). Phytologia 95:1-9
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