Dr. Tom D. Throckmorton
d 2000. Des Moines, Iowa, USA. Creator of the daffodil colour-coding system introduced in 1975
Fl. 105 mm wide; corona lime lemon, with deep green at base and vermilion scarlet at rim.
Star Trek, 3 W-GYR, Dr. Tom D. Throckmorton, United States, 1976Photo #7722 Ian Scroggy, Northern IrelandStar Trek, 3 W-GYR, Dr. Tom D. Throckmorton, United States, 1976Photo #6085 Dr. Tom D. Throckmorton, USA