268 



INDEX. 



St re}) to carpus, leaf-roots, 77 ; adven- 

 tive axillary shoots, 130 ; leaf- 

 cuttings, 136. 



"Style-bates morchellif ormis " superior 

 hymenium, 25-26. 



Suckers, 127. 



Sumach, laciniation of leaf, 163. 

 Sundew, leaf-shoots, 132. 

 Sunflower, syncotyly, 215. 

 Suppression of shoot, 116-117; of 



internodes, 153; of foliar organs, 



195. 



Sycamore, fusion of shoots, 119; 



several cotyledons, 215. 

 Symphoricarpus, laciniate leaf, 164. 

 Syncarpy in mosses, 58. 

 Syncotyly, 214. 

 Syringa, leaf-enations, 206. 

 Syrrhopodon, adventitious gemmae, 



46. 



Taphrina, cause of leaf-shoots, 134. 



Taraxacum, ring-f asciation, 90 ; leafy 

 scape, 155. 



Taxodium, apogeotropic roots, 72. 



Taxus, erect branches, 123 ; scale- 

 leaves below ovule, 155 ; radial 

 shoot, 223. 



Teazel, forked leaf, 169; torsion of 

 stem, 219 ; spiral phyllotaxis, 219. 



Tecoma, fusion of roots, 71. 



Teleological theory, 7 et seq. ; dyna- 

 mic, 8. 



Tendril, proliferation of, in Ampeli- 

 daceae, 101 ; bearing flower, 109 ; 

 phyllody of, 158. 



Teratological method of investiga- 

 tion, 4, 195. 



Terminal, forking, 168 ; cotyledon, 

 191, 215 ; leaf replaced by pair, 

 222 ; foliage-leaf, 223-224, 238. 



Tetrachotomy in Selaginella, 104. 



Tetraphis, gemmae, 47. 

 hesium, adnation of bract, 209. 



Thorn-acacia, phyllody of thorns, 

 159. 



Thorn, phyllody of, 158. 

 Thuja, juvenile and mature foliage, 

 176. 



Thujopsis, witches' broom of, 129. 

 Tibouchina, branched root, 67. 

 Tieghem, van, and anatomical 



method, 3. 

 Tiger-lily, petalody of bulbil-scales, 



160. 



Tilia, leaf -pitcher, 199. 

 Tobacco, union of leaves, 200, 225. 

 Tolmisea, leaf-shoots, 132. 

 Tomato, leaf shoots, 136. 



Torreya, scale-leaves below ovules,. 

 155. 



Torsion of stem, 219. 



Tortula, adventitious protonema 

 (%), 52. 



Tragopogon, forked root, 67. 



Trametes lobata, structure of hy- 

 menium, 32. 



Transitional structures, 2, 7, 145. 



Traumatic reversion, 223, 232. 



Tremella, primitive fructif action, 30. 



Tremellineae, primitive fungi, 30. 



Tricholoma, forked, 17 ; adventitious 

 branching, 21, 22 ; inverted cap, 

 28 ; foveolate hymenium, 28. 



Trichomanes, leafless shoots, 105 ; 

 apospory, 141-142. 



Trichostomum, forked capsule, 58. 



Trifolium 4-7-foliolar leaf, pinnate 

 leaf, 170-172. 



Trigonal fasciation, 88. 



Triplet-formation, 93. 



Tropseolum, pampinody of foliage,. 

 183 ; suppression of bracts, 195. 



Tub aria furfuracea, superior hy- 

 menium, 25. 



Tulip, axillary bulb, 111 ; adnation 

 of foliage-leaf, 209. 



Turkey oak, laciniate leaf, 164. 



Turnip, fasciated root, 67. 



Tway blade, root- shoots, 128. 



Twin-formation, 93 ; imperfect, 94. 



TAvin mushrooms, 35. 



Tylenchus (eelworm) in leaf, 245. 



Typha, terminal carpel, 238. 



Ulex, its thorns, 159 ; spineless, 160. 



Ulmus, forking of leaves, 10, 221, 236 ; 

 erect branches, 123 ; compound 

 leaf, 165-167; leaf-pitcher, 199; 

 opposite leaves, 221, 236. 



" Ulvula" forms of Metzgeria, 43. 



Umbelliferae, phyllody of bracts, 153;. 

 simple leaves, 173 ; primitive type 

 of stem,* 228. 



Umbrella pine, nature of double 

 needle, 103 ; proliferation of short- 

 shoot, 103, 222 ; pair of needles,. 

 222. 



; Urticaceae, primitive phyllotaxis of,, 

 200, 236. 



Vanilla, branched root, 67. 

 Variation, definite, 9, 10 ; fortuitous, 

 9. 



| Vascular plants, 66. 



! Vascular ring, shoots arising from,. 



| 131. 



