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| | Plant Science Bulletin - January 1963, Volume 9, Issue 1 |
 | | In the north, rainfall is confined almost entirely to the winter months, excepting the higher parts of the Sierra San Pedro Martir, while in the southern half of the peninsula most of the rain falls in the summer, but with a little coming in the winter. |
 | | But it does not treat the plants in the chaparral, the oak-coniferous forests of the Sierra Juarez, and the coniferous stands in the higher parts of the Sierra San Pedro Martir and in the Sierra de la Laguna in the Cape Region. |
 | | One laguna, as these dry lake beds are called locally, was six miles long and a third as wide in November, 1959, and around its margins were actually hundreds of acres bearing dense stands of Marsilea. |
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