Phylogenetic Analysis of the Geographically Disjunct Genus Osmundea Stackhouse (Rhodomelaceae, Rhodophyta)

Lynne McIvor, Christine A. Maggs, Michael D. Guiry, and Max H. Hommersand

Fig. 2. Parsimony tree for rbcL sequences of Osmundea and Laurencia species (the roots pruned) showing character states for the presence (blue) or absence (red) of secondary pit connections (upper tree) and the shape (urn-shaped, blue; cup-shaped, red; trichoblast-type, black) of the spermatangial receptacles (lower tree).

fig. 1