■304 Proceedings of the Ohio State Academy of Science. 



Succulent — Soft and juicy. 



Superior — Above. * 



Ternate — Divided into three segments ; arranged in threes. 



Thalloid — Having the form of a typical thallus. 



Thallus — The plant body of a thallophyte, or of the gameto- 



phyte of the Archegoniates. 

 Tomentose — Covered with dense wool-like hairs. 

 Truncate — Terminating abruptly by a nearly straight edge or 



surface. 



Undulate — With wavy margins. 



Unisexual — Having only ovaries or spermaries on one in- 

 dividual. 



Vascular bundle — The conducting strands in the plant body 



composed of wood and bast. 

 Venation — The arrangement of the veins. 

 Vernation — The arrangement of the leaves in the bud. 

 Villous — With long, soft hairs not matted together. 



