CHROMOSOME RACES OF GRAYIA BRANDEGEI (CHENOPODIACEAE)

Diploid (2n = 18) and tetraploid (2n = 36) races of Grayia brandegei differ in phenotype and geographic distribution. Diploids have narrow, linear leaves and mostly are restricted to south-central Utah and northeastern Arizona. Tetraploids are larger statured, bear larger, more oval leaves and mostl...

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Veröffentlicht in:	Madroño 1987-06, Vol.34 (2), p.142-149
Hauptverfasser:	Stutz, Howard C., Sanderson, Stewart C., McArthur, E. Durant, Ge-Lin, Chu
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences Chromosomes Diploidy Fundamental and applied biological sciences. Psychology Leaves Plant cytology, morphology, systematics, chorology and evolution Plant morphology Plants Population distributions Population growth Shrubs Spermatophyta Systematics (diagnosis, chromosome numbers) Tetraploidy Triploidy
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Beschreibung
Zusammenfassung:	Diploid (2n = 18) and tetraploid (2n = 36) races of Grayia brandegei differ in phenotype and geographic distribution. Diploids have narrow, linear leaves and mostly are restricted to south-central Utah and northeastern Arizona. Tetraploids are larger statured, bear larger, more oval leaves and mostly occur in isolated populations in northeastern Utah, south-central Wyoming, eastern Colorado, and northwestern New Mexico. Because of their morphological and distributional differences, the tetraploid form is designated as a new variety, Grayia brandegei var plummeri.
ISSN:	0024-9637 1943-6297