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ARCTOSTAPHYLOS GABILANENSIS (ERICACEAE), A NEWLY DESCRIBED AURICULATE-LEAVED MANZANITA FROM THE GABILAN MOUNTAINS, CALIFORNIA

V. Thomas Parker and Michael C. Vasey
Madroño
Vol. 51, No. 3 (JULY-SEPTEMBER 2004), pp. 322-325
Stable URL: http://www.jstor.org/stable/41425553
Page Count: 4
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
ARCTOSTAPHYLOS GABILANENSIS (ERICACEAE), A NEWLY DESCRIBED AURICULATE-LEAVED MANZANITA FROM THE GABILAN MOUNTAINS, CALIFORNIA
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Abstract

Arctostaphylos gabilanensis V. T. Parker and M. C. Vasey is a newly described diploid manzanita species from the Gabilan Mountains in San Benito and Monterey counties, CA. This species demonstrates characteristics that suggest a hybrid origin, with auriculate leaves similar to many maritime species, but also with inflorescence characters including large globose fruits and fused nutlets that indicate a relationship to A. glauca. Plants are restricted to soils of granitic origin between 300-700 m from just SE of Fremont Peak, south to near the northern boundary of the Pinnacles. We also provide a key to the northern auriculate-leaved Arctostaphylos species of the San Francisco Bay and Monterey Bay regions.

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