208 
Masters, Dr. M., on the woody vessels of 
petioles, 75 
Maurandia, a leaf-climber, 66 
Mikania scandens, 33 
Mohl, Hugo, reference to work of, 1 
Moquin-Tandon, on the abc rtion of the 
leaves of the bean, 202 
Miller, Fritz, on the structure of the 
wood of climbing plants, 44 
on plants scrambling over 
other plants, 183 
branches into tendrils, 84 
on roots of Philodendron, 
188 
on the spontaneous move- 
ments of certain plants, 198 
Mutisia clematis, 116 
Naudin on abortion of tendrils, 200 
Nepenthes, 80 
Nutation, revolving, 11 
Ophioglossum Japonicum, 77 
Palm, reference to work of, 1 
Passiflora acerifolia, 154 
gracilis, 153 
punctata, 156 
quadrangularis, 157 
Paullinia, 153 
Pea, common, 112 
Peduncles of Maurandia sensitive and 
revolve spontaneously, 67 
Phaseolus, torsion of axes, 9 
, hon-twining variety, 42 
Philodendron, roots of, 188 
Pisum sativum, 112 
Polygonum convolvulus, 41 
Rhodochiton volubile, 70 
Roots acting like tendrils, 188 
Root-climbers, 185 
Rosa setigera, shoots bend from the 
light, 184 
Rubus australis, 183 
Sachs, Prof., on torsion, 9 
on cause of revolving move- 
ment, 22 
on tendrils adapted to clasp 
supports of different thickness, 176 
on cause of movement of ten- 
drils when touched, 180 
Sensitiveness of tendrils, nature of, 197 
on the development of) 
INDEX. 
Serjania, 152 
Smilax aspera, 118, 184 
Spencer, Herbert, on the relation of axial 
and foliar organs, 199 
Spiller, Mr., on the oxidation of india- 
rubber, 187 
Spruce, Mr., on Marcgravia, 185 
Solanum dulcamara, 34, 43 
jasminoides, 72 
Spiral contraction of tendrils, 158 
Summary on twining plants, 39 
Summary on leaf-climbers, 81 
Summary on the movements of tendrils, 
169, 202 (13 
Summit of twining plants, often hooked, 
Support, thickness of, round which 
plants can twine, 22, 36 
, thickness of, which can be em- 
braced by tendrils, 176 
Tacsonia manicata, 158 
Tamus elephantipes, 41 
Tecoma radicans, 43, 185 
Tendrils, history of our knowledge of, 85 
——,, spiral contraction of, 158 
—, summary on, 169, 202 piso 
, cause of movement when touched, 
Tendril-bearers climb more securely 
than twiners, 192 
Tendrils, abortion of, 200 
Torsion of the axes of twining plants, 7 
Tropeolum, various species of, leaf- 
climbers, 60 
Twining plants, 2 
, shoots of, sometimes sponta- 
neously become spiral, 17 
table of rates of revolution 
of various species, 24 
anomalous cases of, 41 
Twisting of the axes of twining plants, 7 
Vanilla aromatica, 188 
Vine, common, 137 
Virginian creeper, 144 
Vries, H. de, on torsion, 9 
on cause of revolving movement, 22 
— on spiral contraction of ten- 
drils, 160, 165 
——— cause of mo: ements of ten- 
drils, 180 
Vitis vinifera, 137 
Zanonia Indica, 136 
