208 



INDEX. 



Masters, Dr. M., on the woody vessels of 



petioles, 75 

 Maurandia, a leaf-climbir, 66 

 Mikania scandens, 33 

 Mohl, Hugo, reference to work of, 3 

 Moquin-Tandon, on the ab( rtion of the 



leaves of the bean, 202 

 M\iller, Fritz, on the structure of the 



wood of climbing plants, 44 

 on plants scrambling over 



other plants, 183 

 on the development of 



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 



PassiHora acerifolia, 154 



gracilis, 153 



punctata, 156 



quadrangularis, 157 



Paulliuia, 153 



Pes, common, 112 



Peduncles of Maurandia sensitive and 

 revolve spontaneously, 67 



Phaseolus, torsion of axes, 9 



, non-twining variety, 42 



Philodendron, roots of, 188 



Pisum sativum, 112 



Polygonum convolvulus, 41 



Rhodochiton volubile, 70 



Hoots acting like tendrils, 188 



Root-climbers, 185 



Kosa 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 



Serjania, 152 



Smilax aspera, 118, 184 



Spencer, Herbert, on the relation nf 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 [180 



, 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 

 Tropxolum, 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 uii 



drils, 180 

 Vitis vinifera, 137 

 Zanonia ludica, 136 



ements of ten- 



