The biosystematics, chemotaxonomy, and ecology of Claytonia lanceolata in western Washington

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Abstract
The morphology, biochemistry, and phenology of Claytonia lanceolata Pursh (Portulacaceae) was examined in western Washington and an analysis was made of associated vegetation and soils. Contrary to earlier taxonomic considerations, the results of this study do not support specific or subspecific separation of the two color forms (yellow and white). Two significantly different populations were revealed, however, based on size characters. These populations were also correlated with different community types and to a lesser extent soils, although detailed analysis of the chemical and physical properties of the A horizon showed intrapopulational variation to be at least as great as that between populations. Finally, the question of ecotypic distinction of the two population types is discussed.

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