Zea nicaraguensis (Poaceae), a New Teosinte from Pacific Coastal Nicaragua

The geographically isolated annual teosinte from the coastal plain and embayments/estuaries near the Gulf of Fonseca, Nicaragua, is differentiated from Zea luxurians from southeastern Guatemala by its much longer and more abundant tassel branches, larger number of spikelets per branch, and longer, m...

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Veröffentlicht in:Novon (Saint Louis, Mo.) Mo.), 2000-12, Vol.10 (4), p.382-390
Hauptverfasser: Iltis, Hugh H., Benz, Bruce F.
Format: Artikel
Sprache:eng
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Zusammenfassung:The geographically isolated annual teosinte from the coastal plain and embayments/estuaries near the Gulf of Fonseca, Nicaragua, is differentiated from Zea luxurians from southeastern Guatemala by its much longer and more abundant tassel branches, larger number of spikelets per branch, and longer, more pronouncedly transversely rugose outer glumes, as well as by its low-elevation coastal habitat. Molecular (ribosomal ITS) evidence and other data, placing it basal to Z. luxurians, seem to support this taxonomic segregation. /// El teosinte annual que crece en aislamiento geográfico en la planicie costera y los bajos inundados y esteros cerca del Golfo de Fonseca, Nicaragua, difiere de Z. luxurians del sureste de Guatemala por el número mayor de ramas y espiguillas por rama de la inflorescencia masculina, por la rugosidad transversal pronunciada de las glumas inferiores, además de altura baja de su habitat costero. Evidencia molecular ubica a esta especie como más primitiva a la especie Z. luxurians y apoya a esta segregación taxonómica.
ISSN:1055-3177
DOI:10.2307/3392992