INDEX. 147 
Marchantia polymorpha, 16. Phloem, 60. 
Magnesium, 20. Phloridzin, 39. 
Medullary ray, 127. Phosphorus, 20. 
primary, 127. Pistaceae, 54. 
— secondary, 150. Plasmolysis, 9. 
Melastomaceae, 59. Plastids, 23. 
Meristem, 43. — chlorophyll grains, 23. 
— Urmeristem or initial cells, 45. — color grains, 23. 
primary, 45. — starch builders, 23. 
—— secondary, 47. Plerome, 44. 
Mesophyll, 92. Poles, 27. 
Mestome, 69. Pores, 54. 
Micella, 5. water, 56. 
Milk tubes, 70, 72. Potassium, 20. 
Monopodium, 102. Primordial utricle, 7. 
Mohl, von, 453. Prosenchyma, 46. 
Molecule, 4. Proteids, 35. 
Mucilage, 22. Protein grains, 23. 
Mucor, 3. Protogenic, 72. 
Musci, 86. Protonema, 81. 
Mycelium, 75. Protoplasm, 2. 
Myrtaceae, 59. Punctum vegetationis, 44. 
Narcotic, 73. Resin; 37. 
Node, 97. 
a a — true, 37. 
uclear plate, 28. == PAs ot. 
Nuclear segments, 27. ee 
Nucleolus, 27. Rind “107, 
‘ : 
+ Or 
Nucleus 8, 23, 25. primary, 128. 
Oils. 37 — secondary, 128. 
wots 
Opium, 73. Root, 116. 
—— comparative anatomy of, 116. 
Papillae, 55. —— types of, 118. 
Parenchyma, 46. —— root-like organs, 116. 
Pelargonium zonale, 16. —— root-cap, 116. 
Periblem, 44. — root hair, 120. 
Periclinal, 104. — root tip, 118. 
Periderm, 51. Rotation, 25. 
superficial, 133. 
—— deap-seated, 1358. Saccharose, 36. 
Phellem, 1387. Salicin, 39. 
Phelloderm, 157. Scales, 55. 
Phellogen, 135, Schimper, 51. 
Phelloid, 137, Schizogenic, 72. 
