Throat, the opening or gorge of a monopetalous corolla, &c., where the border and the tube join, and a little below, [89].
Thyrse or Thyrsus, a compact and pyramidal panicle of cymes or cymules, [79].
Tomentose, clothed with matted woolly hairs (tomentum).
Tongue-shaped, long and flat, but thickish and blunt.
Toothed, furnished with teeth or short projections of any sort on the margin; used especially when these are sharp, like saw-teeth, and do not point forwards, [55].
Top-shaped, shaped like a top, or a cone with apex downwards.
Torose, Torulose, knobby; where a cylindrical body is swollen at intervals.
Torus, the receptacle of the flower, [81], [112].
Trachea, a spiral duct.
Trachys, Greek for rough; used in compounds, as, Trachyspermous, rough-seeded.