discovery and discovery and description of description of Juncus Juncus digitatus digitatus www.vernalpools.org Carol W. Witham, VernalPools.Org
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discovery and description of discovery and description of Juncus digitatusJuncus digitatus
www.vernalpools.org
Carol W. Witham, VernalPools.Org
www.vernalpools.org
PG&E Gas PipelinePG&E Gas Pipeline Expansion Project Expansion Project
1991-1993 Surveys• vernal pool sites
• wetland crossings
• rare plants/animals
• many biologists
• CASH COW !!!
www.vernalpools.org
first collected in 1991 first collected in 1991 by Dean Wm. Taylor… by Dean Wm. Taylor…• along a tributary to Shingle Creek
• plants were immature
• mixed collection with Juncus triformis
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then in 1992… then in 1992…
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on May 20, I sent a faxon May 20, I sent a fax to several people… to several people…
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then in 1993… then in 1993…
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between 1992 and 2006…between 1992 and 2006…
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also between 1992 and 2006…also between 1992 and 2006…
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also between 1992 and 2006…also between 1992 and 2006…
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also between 1992 and 2006…also between 1992 and 2006…
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enter Peter Zika about enter Peter Zika about JuncusJuncus……
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Juncus digitatus Juncus digitatus (finger rush)…(finger rush)…
www.vernalpools.org
Juncus digitatus Juncus digitatus (finger rush)…(finger rush)…
Discovery goes to press• measure, measure & measure
• select material for illustration
• mature material
• features that are important
• respect your illustrator
• rely on reviewers for good info
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Juncus digitatus Juncus digitatus (finger rush)(finger rush) current status… current status… • Described in 2008 by Witham and Zika (JBrit 2(2):775-781)
• Section Caespitosi comprised of 17 delicate annuals
• 12 indigenous to California with 5 endemic
• One of the smaller Juncus, but has the longest capsules
• California Rare Plant Rank (CNPS List) 1B.1
• Only 2 known populations
• Private property
• Significant habitat modification threats
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a take home messagea take home message for all botanists… for all botanists…• Plants previous thought to be extinct are being rediscovered
• Arctostaphylos franciscana
• About ten species of new plants are discovered in California every year
• A number that has stayed steady since the 1850s
• Most discoveries are made just off the beaten path
• California’s native plants need you!
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