Cordate (basipetal-pedate) leaves occur in the clade consisting
of the two monotypic genera Sanguinaria and Eomecon
and in Macleaya. Leaf venation of Macleaya, which is sister
taxon to the pinnate Bocconia, is better described as “semipinnate”
(fig. 2).
Papaveroideae. Segmentation patterns are the most diverse
in this subfamily. In the unresolved and species-rich Papaver/
Meconopsis/Stylomecon/Roemeria clade, a spectrum of
divergent, acropetal, and polyternate leaves with intermediates
are prevailing (fig. 2). In Asian Meconopsis, basipetal-pinnate,
basipetal-pedate, and secondarily undissected leaves also occur.
Dissection modes in Papaver may even vary within a heteroblastic
series (S. Gleissberg, unpublished results).
Cordate (basipetal-pedate) leaves occur in the clade consistingof the two monotypic genera Sanguinaria and Eomeconand in Macleaya. Leaf venation of Macleaya, which is sistertaxon to the pinnate Bocconia, is better described as “semipinnate”(fig. 2).Papaveroideae. Segmentation patterns are the most diversein this subfamily. In the unresolved and species-rich Papaver/Meconopsis/Stylomecon/Roemeria clade, a spectrum ofdivergent, acropetal, and polyternate leaves with intermediatesare prevailing (fig. 2). In Asian Meconopsis, basipetal-pinnate,basipetal-pedate, and secondarily undissected leaves also occur.Dissection modes in Papaver may even vary within a heteroblasticseries (S. Gleissberg, unpublished results).
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