Evolution of Sesquiterpene Lactones in Angiosperms*

164 VICENTE DE P. EMERENCIANO. MARIA AUXILIADORA C. KAPLAN AND O1-I"O R. GoI-rLJEB
i.+l. o
lHmu
l.OC
mlKuP
mNm'L.ml
~,
~,~
mA|T OYEm m.~r,
&m.~ OoAo ~m~ Im, u
I
B~m~¢ O~A mJmN
m ~.o o.a~ m
~ ~
RG. lO. ~ f l ~ ~ ~s ~D ~ V~UES ~ ~[S ~ ~ BE~GI~ ~ ~E S~I~S C ~ l ~ ~) ~D
~ ~ GR~ 1 ~) ~ 2 ~). F~ m O ~ ~ ~ m ~ r m~n~ m Tm~ 12.
expected, by compounds of type 1.4 and by
uniformly high EA s values. The eight new
species of Inuleae contain compounds of various
types, including type 1.2 and possess low EA o
values. The situation for the five new species of
Anthemideae with respect to type 1.2 is similar,
but F-A s values are considerably lower. All five
new species of Senecioneae contain types 1.2.1.
This distinctive feature, together with very low
EA o and very high F_A s values, make recognitions
in this group especially easy.
The global analysis of the presem paper thus
not only reveals valid trends, but also shows that
the way is paved to a useful chemosystematic
device for the cla=sification of the Asteraceae.
Ackn~me~t--Con~lho Nacional de De~envolvirnento
Cientifico • Tecnolbgi¢o (CNPq) provided a graduate fellowship
(to V. de P, E.).
References
1. Silva, M. F. das G. Fo, Go~iieb00. Ft. sm~ Oreyer0 0. L. (1984)
~ochem. $~st ~co/. 12, 299.
~o
~,film'L
BOiL
~!
mA
Z*N~
h~.
~¥~
~,w.~
~
m,,,mu
B ~
B ~
&~OT
AOOel
o~1,o ~ =~. ~-J
~,~. ~. co~e~ o~ ~, ~o ~ ~ M ~ r~ SuO~lOeS o~ .eu~'r.e,oz. C~,~CTe~'O O~ ~e.~ O~C C.~OMO~O~
NUMBERS, BELONGING TO THE GROUPS CENTERED IN VERBE$1MNA~ t~), GAUNSOGINAE ~), COREOPSIDINAE (~) AND MILLERIINAE (Z~). For a
Oloa~ary of the ~me4Ottor acronyms see Tatde 11.