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Sessile and Stalked Terminal Leaflets

by Bob Harms  email-here
Sessile
Attached directly (without petiolule extension) to the rachis articulation node.
Stalked
Separated by a rachis segment from the next lower leaflet pair.

Sessile and Stalked

B. swaseyi
(normal)
B. trifoliolata X B. swaseyi
(less common)

Sessile and Not Stalked

B. swaseyi
(uncommon)
B. trifoliolata X B. swaseyi
(normal)

Not Sessile and not Stalked

This combination
was not attested
for B. swaseyi
B. trifoliolata X B. swaseyi
(uncommon)

Not Sessile and Stalked. — This combination was not attested.