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James Small. 
be narrow or so broad that only a narrow non-papillate region in 
the centre is left; very similar to IV, but distinguished by the 
rounded apex and frequently by the broader stigmatic lines (Fig. 5, 
XII and XHa). 
Type XIII. Style undivided, hairy externally, club-shaped, 
stigmatic papillae absent; very similar to XII before the divergence 
of the style branches has taken place, characteristic sterile pollen- 
presenter of some male florets (Fig. 5, XIII). 
Fig. 5. Style forms in the Composite. The arrows indicate the lines of 
evolution. 
