Subdioecious and trioecious

David R. Hershey dh321 at PGSTUMAIL.PG.CC.MD.US
Fri Aug 8 14:49:30 EST 1997

Trioecious is defined as a species with individuals that are male,
female, and synoecious (plants with perfect flowers). I have seen
subdioecious listed as a synonym for trioecious. I have also seen it
defined as a species with separate male, female, and monoecious
individuals. Are there any species that fit this latter definition? 

David R. Hershey

Snail mail: 6700 Belcrest Road #112, Hyattsville, MD 20782-1340

Adjunct Professor, Biology/Horticulture Dept.
Prince George's Community College, Largo, MD 20772-2199

Email: dh321 at


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