Having lived in Los Angeles for many years I disoverd several
plants that have proven quite smog resistant.
 
Best luck was achieved with the Plasticus polymeri.  They were
relatively easy to take care of, but once a year needed a major
hosing.  They did better than the Bombyx Arachnidae which
tended to dry out and fade in the sun.  They did not take well
to water.
 
Best results of all were achieved with Ceramicus porcellana,
but these were by far the most expensive and tended to be
fairly heavy.
 
(With apologies to all my friends in arobreta and botanical
gardens.)
______________________________________
Robert A. Baron
Museum Computer Consultant
P.O. Box 93, Larchmont, NY 10538
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