216 SOUTH AFRICAN BOTANY 
Thalamus, 79, 80. 
Thorns, leaf, 72. 
Tracheide, 25. 
Transpiration, 130, 133. 
Trimorphic, 113. 
Tripinnate, 72, 
Tuber, 42. 
Tubular calyx, 81. 
— corolla, 84. 
UMBEL, 9%. 
Unguiculate, 82. 
Unilocular, 88. 
Uniparous, 57, 93. 
Urceolate, 81, 84. 
VacuoLes, 19. 
Valvate vernation, 68. 
Vegetative cell, 119. 
Venation, 67. 
Vernation, 68. 
Versatile, 86, 
Verticillaster, 93. 
Verticillate, 65. 
Vessels, 25. 
Water culture, 123. 
Xybem, 34. 
Xerophytes, 154. 
ZYGOMORPHIC, 89. 
