May Agenda
Saturday, May 13th
Balboa Park, Casa del Prado, Room 101.
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Copyright © 2016 The San Diego Cactus & Succulent Society
About Us
- An Affiliate of the Cactus and Succulent Society of America 
April 2017 Program

Some Unexpected Consequences of Becoming
Adapted to Desert Conditions
by James D. Mauseth
As cacti became adapted to desert conditions, they evolved to store water (to be succulent), to retain
water (they lost their leaves), and to protect their water (they became spiny). But there were some unexpected consequences. They can use some of their stored water to entice insects to themselves (they
produce nectar in unusual places). Many retained the ability to make leaves - we just donít often recognize
the leaves even as we look at them. And the evolution of ribs in cacti caused several fundamental
aspects of stem development to change.
James Mauseth is a professor at the University of Texas at Austin. His research has focused on the
changes in anatomy and development in plants with extremely modified bodies, including cacti and parasitic plants.
Plant of the Month Presentation
Succulent Senecios
by Terry Parr
Senecio is an extraordinarily large genus of plants, numbering more than 1500 mostly herbaceous species in that largest of all plant families, the Compositae. Senecio is found on all continents except Antarctica, typically at low to mid latitudes. Several species are native to San Diego County. The unifying character-istics of the genus are in the flower structure,
while the body forms are highly diverse and, when
viewed together, would scarcely be expected to occupy
the same genus.

Coffee In the Garden
Saturday, May 20th 10am - 2pm
Hosted by Brian and Sally Shepherd
2837 N. Victoria Dr., Alpine CA
(see pg. 6 of the newsletter for more information)
11:00 AM Pre-Meeting Workshop
Prepping for the Show - by Jerry Garner
12:30 PM New Member Orientation
1 - 4:00 PM Meeting - May Program