Figure 1 - Cell–cell recognition during fertilization in the red alga, Aglaothamnion oosumiense (Ceramiaceae, Rhodophyta)
Female plant of Aglaothamnion oosumiense developing carpogonia and hair cells. Note the spermatia attached to the trichogyne and hair cell (cb, carpogonial branch; hc, hair cell; tr, trichogyne; scale bar: 20 μ m).