1960
DOI: 10.2307/2411963
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The Origin and Relationships of the Land Flora

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Cited by 19 publications
(5 citation statements)
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“…The area was first recognized as a biogeographical unit by Bryant (1891) and the flora of this region has been long-recognized as unique and much differentiated from the drier desert regions to the north due to a large number of species with tropical affinities (Brandegee, 1891(Brandegee, , 1892Shreve, 1937;Shreve and Wiggins, 1964;Wiggins, 1980). Much of the uniqueness is due to the geological structure and history of the region which for a time period of approximately 2 million years during the Pliocene was isolated as an island, allowing its flora to evolve separate from that of the remainder of the peninsula (Wiggins, 1960;Riddle et al, 2000;Hellenes and Téllez-Duarte, 2002). The insular character of the flora was early recognized by Brandegee who noted the large proportion of genera to species in the region and estimated that 10% of the flora was endemic (Brandegee, 1892).…”
Section: Discussionmentioning
confidence: 99%
“…The area was first recognized as a biogeographical unit by Bryant (1891) and the flora of this region has been long-recognized as unique and much differentiated from the drier desert regions to the north due to a large number of species with tropical affinities (Brandegee, 1891(Brandegee, , 1892Shreve, 1937;Shreve and Wiggins, 1964;Wiggins, 1980). Much of the uniqueness is due to the geological structure and history of the region which for a time period of approximately 2 million years during the Pliocene was isolated as an island, allowing its flora to evolve separate from that of the remainder of the peninsula (Wiggins, 1960;Riddle et al, 2000;Hellenes and Téllez-Duarte, 2002). The insular character of the flora was early recognized by Brandegee who noted the large proportion of genera to species in the region and estimated that 10% of the flora was endemic (Brandegee, 1892).…”
Section: Discussionmentioning
confidence: 99%
“…Summer rains are characteristic of the Cape region and the Peninsular Desert and this difference may explain the persistence of Neotropical Tertiary geofloral elements mixed with the Madro-Tertiary thorn-scrub in southern Baja California (Wiggins, 1960). Increasing aridity seems to have provided the stimulus for the development of characteristic Madro-Tertiary vegetation in western North America and the dominance of Madro-Tertiary derivatives in Baja California today.…”
Section: Origins and History Of Baja California Herpetofaunamentioning
confidence: 99%
“…Fotos: Jorge Gutiérrez. no se sumergieron después de procesos de inundación, y posterior retroceso de las aguas, dejando al descubierto la actual masa terrestre que conforma la península como lo sugirió Wiggins (1960). Posiblemente poblaciones de Milla compartían en ese momento el área de distribución con la parte continental al final de la época geológica.…”
Section: Resultsunclassified