The left is a transverse section of a petiole of the castalia group. The right is transverse section…
"Waldheimia flavescens. Interior of dorsal valve. c, c', cardial process; b', hinge-plate; s, dental…
The left is a transverse section of a petiole of the lotos group. The right is a transverse section…
"Diagram showing the muscular system. M, ventral, N, dorsal valve; l, loop; V, mouth; Z, extremity of…
"A. Colony of Pennatula phosphorea from the metarachidial aspect. p, The peduncle. B, Section of the…
"Raceme of common red currant. p, peduncle; p', pedicel; br, bract." -Bergen, 1896
"Fruits of Linden, with a bract joined to the peduncle and forming a wing." -Bergen, 1896