PLATE 41 SPIRAL VESSELS 130 PLATE 42 SCLARIFORM VESSELS 132 PLATE 43 RETICULATE VESSELS 133 PLATE 44 PITTED VESSELS 134 PLATE 45 VESSELS 135 PLATE 46 SIEVE TUBE 137 PLATE 47 RADIAL LONGITUDINAL SECTION OF WHITE SANDALWOOD (_Santalum album_, L.) 140 PLATE 48 KAVA-KAVA ROOT and WHITE PINE BARK 143 PLATE 49 BLACK INDIAN HEMP and BLACK INDIAN HEMP ROOT 145 PLATE 50 LATEX VESSELS 146 PLATE 51 PARENCHYMA CELLS 148 PLATE 52 GRINDELIA STEM (longitudinal) and GRINDELIA STEM (cross-section) 149 PLATE 53 ACONITE STEM and PEPPERMINT STEM 152 PLATE 54 TYPES OF STOMA 153 PLATE 55 LEAF EPIDERMI WITH STOMA 155 PLATE 56 BELLADONNA LEAF, DEER TONGUE LEAF and WHITE PINE LEAF 156 PLATE 57 ELDER BARK 159 PLATE 58 INTERCELLULAR AIR SPACES 160 PLATE 59 IRREGULAR INTERCELLULAR AIR SPACES 161 PLATE 60 GLANDULAR HAIRS 165 PLATE 61 STALKED GLANDULAR HAIRS 167 PLATE 62 CALAMUS RHIZOME and WHITE PINE BARK 169 PLATE 63 CANELLA ALBA BARK and KLIP BUCHU LEAF 170 PLATE 64 BITTER ORANCE PEEL and WHITE PINE LEAF 171 PLATE 65 CINNAMON, CALUMBA, PARENCHYMA, SARSAPARILLA, LEPTANDRA, QUEBRACHO, BLACKBERRY 174 PLATE 66 MUCILAGE AND RESIN 175 PLATE 67 CROSS-SECTION OF SKUNK-CABBAGE LEAF (_Symplocarpus fœtidus_, [L.] Nutt.) 177 PLATE 68 RESERVE CELLULOSE 180 PLATE 69 RESERVE CELLULOSE 181 PLATE 70 STARCH 186 PLATE 71 STARCH 187 PLATE 72 STARCH 189 PLATE 73 STARCH 190 PLATE 74 STARCH 191 PLATE 75 STARCH GRAINS 192 PLATE 76 STARCH MASSES 193 PLATE 77 INULIN (_Inula helenium_, L.) 195 PLATE 77_a_ ALEURONE GRAINS 199