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| | JPBIO 111 Plant Biology, Phylogeny Exercises, Winter, 2000 (Site not responding. Last check: 2007-10-14) |
 | | The families are Rhamnaceae (buckthorns and their relatives), Ulmaceae (elms and their relatives), Celtidaceae (hackberry and its relatives), and Moraceae (figs, mulberries, and their relatives). |
 | | Plants in the Moraceae have milky sap; the sap is colorless in the Ulmaceae, Rhamnaceae, and Celtidaceae. |
 | | The embryo is straight in Ulmaceae and Rhamnaceae but curved in Celtidaceae and Moraceae. |
| oak.cats.ohiou.edu /~cantino/phylogeny2.html (302 words) |
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