Distribution of Mentzelia section Bartonia in the Sonoran Desert. Mentzelia longiloba is abbreviated as M. l.

Distribution of Mentzelia section Bartonia in the Sonoran Desert. Mentzelia longiloba is abbreviated as M. l.

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Background: Mentzelia (Loasaceae) is primarily distributed in western North America. The genus is classified into six monophyletic sections, among which species of section Bartonia are particularly poorly understood. Questions: What species of Mentzelia section Bartonia occur in Mexico? What are the species distribution ranges and what are their d...

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... seed coat traits are easiest to view at high magnification with a SEM, microsculpture traits can be observed with a 10x hand lens or stereoscopic microscope. Seed coat microsculpture patterns in section Bartonia revealed pat- Taxa occurred in either the Sonoran or Chihuahuan deserts (Figures 3, 4). The Sonoran Desert taxa included M. longiloba var. ...
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... M. longiloba var. pinacatensis, and M. puberula ( Figure 3). The Mexican endemic M. longiloba var. ...
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... range of M. longiloba var. longiloba is one of the most widespread when compared to other taxa of section Bartonia in Mexico (Figure 3), with a range that includes most of the Sonoran Desert and extends northward into the United States. The distribution of M. puberula is mostly associated with the Colorado River throughout its range in Mexico and the United States, with some notable extensions away from the river (Figure 3). ...
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... is one of the most widespread when compared to other taxa of section Bartonia in Mexico (Figure 3), with a range that includes most of the Sonoran Desert and extends northward into the United States. The distribution of M. puberula is mostly associated with the Colorado River throughout its range in Mexico and the United States, with some notable extensions away from the river (Figure 3). ...
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... throughout the Sonoran Desert in Mexico and the Colorado Plateau in the United States. In Mexico, populations occur in Baja California and Sonora at 15-1,470 m in elevation (Figure 3). ...
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... Endemic to the volcanic Pinacate Region of northwestern Sonora at 130-950 m in elevation (Figure 3). Habitat. ...
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... Baja California and northwestern edge of Sonora near the United States border, occurring at elevations of 90-460 m in Mexico (Figure 3). ...