212 SOUTH AFRICAN BOTANY 
Collective fruit, 197. Dioecious, 111. 
Collenchyma, 53. Dispersal of fruits, 102, 
Companion-cell, 26. — — seeds, 102. 
Complementary cells, 55. Dorsifixed, 86. 
Complete flowers, 80. Dorsiventral leaves, 73. 
Composition of plants, 123. Drupe, 100. 
Compound fruit, 97. 
— leaves, 69. EBRACTEATE, 91. 
— umbel, 93. Elements in plants, 123, 
Concentric leaves, 73. Blliptical leaves, 71. 
Conical root, 31. Emarginate, 70. 
Conjunctive tissue, 35. Embyro, 120. 
Connate, 69. — sac, 117. 
Connective, 84. Endocarp, 100. 
Contact, 152. Endodermis, 47. 
Contorted vernation, 68. Endogenous growth, 31. 
Cordate, 71. Endosperm, 5, 120, 
Cork cambium, 53. Endothecium, 85. 
— cells, 53. Entire, 69. 
Corm, 44, Entomophilous, 110, 
Corolla, 82. Environment, adaptations to, 153. 
Corona, 84. Epicarp, 99. 
Corymb, 93. Epidermis, 47. 
Cotyledons, 1. Epigeal, 5. 
Crenate, 71. Epigynous, 80. 
Cross pollination, 109, Epipetalous, 86. 
Cruciform, 88. Epiphytes, 157. 
Crystals, 23. Epithelial layer,.7. 
Cuneate, 71. Etiolation, 149. 
Cutin, 21, 53. Exendospermous, 5, 
Cyme, 98. Exine, 119. 
Cymose branching, 56. Exstipulate, 63. 
— inflorescence, 92, 93. Extrorse, 85. 
Cytoplasm, 18. ‘ Byes” of Potato, 42. 
Darwin, 111. Fauss septa, 88. 
Deciduous, 81. Fasciculated root, 31. 
Decurrent, 69. Ferments, 140. 
Decussate, 65. Fertilisation, 120. 
Definite branching, 56, Fibrous layer, 85. 
— inflorescence, 92. — root, 31. 
Dehiscent fruits, 98. Fibro-vascular bundles, 34, 48. 
Dentate, 71. Filament, 84, 
Diadelphous, 85. Fimbriated, 83. 
Diagram, floral, 90. Floral diagram, 90. 
Dichasium, 93. — formula, 90. 
Dichogamy, 111. Flow of sap, 129. 
Dichotomy, 56. Flower, definition of, 79. 
— false, 57. — parts of, 79.° 
Diclinism, 111. Follicle, 99. 
Dicotyledons, 7, 164. Food, plant, 123. 
Didynamous, 86. Free vernation, 68. 
Dimorphic, 113. Free-central placentation, 88. 
