appears to bee some confusion in common name spellings as well as
symptoms:
 
from 'florida bee botany" by m.t.sanford,extension apiculturist,univ.of
fla.(usa):
 
"yellow jessamine, gelsenium sempervivens...is a woody vine...occurring
from
central peninsular florida northwards...blooms from february to
march...has been
reported as being toxic to honey bees and responsible for reducing colony
strength
in some areas."
 
from r.j.barker,"poisoning by plants" in "honey bee pests,predators, and
diseases,
2nd edition" r.a.morse&r.nowogrodzki,editors [copyright 1990 by cornell
university]:
 
yellow jessamine, or carolina jessamine: gelsemium sempervivens
(loganiaceae)
"...grows from virginia,usa, to guatemala...yields pollen and probably
some nectar...
bees associated with the blooms became paralyzed and died
[ref.cited]...more young
nurse bees than field bees seemed to be killed, so the toxin was
suspected to be in
the pollen [ref.cited]...brood was not killed...sugar syrup containing
jessamine blossoms was fed to bees...did not increase mortality
[ref.cited]...the possibility of
insoluble toxins in pollen and the dilution effect of the sugar syrup
needed consideration..."
 
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