Tetrachyron Explained

Tetrachyron is a genus of Mesoamerican plants in the tribe Heliantheae within the family Asteraceae.^{[1] [2] [3]}

Species^{[4] [5] [6] [7]}

• Tetrachyron brandegeei (Greenm.) Wussow & Urbatsch - Oaxaca, Puebla
• Tetrachyron discolor (A.Gray) Wussow & Urbatsch - Hidalgo
• Tetrachyron grayi (Klatt) Wussow & Urbatsch - Tamaulipas, Nuevo León
• Tetrachyron manicatum Schltdl. - Oaxaca, Veracruz
• Tetrachyron orizabaensis (Klatt) Wussow & Urbatsch - Guatemala, Chiapas, Oaxaca, Puebla, Veracruz
• Tetrachyron torresii B.L.Turner - Oaxaca
• Tetrachyron websteri (Wussow & Urbatsch) B.L.Turner - Tamaulipas, Hidalgo, Querétaro

formerly included^[4] see Calea

• Tetrachyron oaxacana - Calea oaxacana

Notes and References

1. https://www.biodiversitylibrary.org/page/109114#page/747/mode/1up Schlechtendal, Diederich Franz Leonhard von . 1847. Linnaea 19: 744-746
2. http://www.tropicos.org/Name/40011600 Tropicos, Tetrachyron Schltdl.
3. Wussow, J. R. & L. E. Urbatsch. 1979 [1980]. A systematic study of the genus Tetrachyron (Asteraceae: Heliantheae). Systematic Botany 4(4): 297–318
4. http://dixon.iplantcollaborative.org/compositaeweb/Default.aspx?Page=AdvNameSearch Flann, C (ed) 2009+ Global Compositae Checklist search for Tetrachyron
5. http://www.theplantlist.org/tpl1.1/search?q=Tetrachyron The Plant List search for Tetrachyron
6. García-Mendoza, A. J. & J. A. Meave. 2011. Diversidad Florística de Oaxaca: de Musgos a Angispermas 1–351. Universidad Nacional Autónoma de México, Ciudad Universitaria D.F.
7. Strother, J. L. 1999. Compositae–Heliantheae s. l. 5: 1–232. In D.E. Breedlove (ed.) Flora of Chiapas. California Academy of Sciences, San Francisco