The Xylem Database https://www.wsl.ch/dendropro/xylemdb/index.php?TEXTID=1865&MOD=1
vessels in groups, scalariform perforations with 10-20 bars
vessels in groups, scalariform perforations with 10-20 bars
vessels in groups, perforations scalariform with 3-10 bars
radial multiples, scalariform perforations with 5-10 bars
uniseriate and in groups scalairform perforations with 5-8 bars
solitary scalariform and simple perforations with 8-12 bars
vessels in groups, scalariform perforations with 10-20 bars
and in groups, scalariform perforations with 10-15 bars
and in groups, scalariform perforations with 10-15 bars
vessels solitary, scalariform perforations with >10bars
vessels solitary, scalariform perforations with >10bars