290 



Practical Plant Biology. 



Spore of Aspidiura, 163. 



Chlamydomonas, 39. * 



Funaria, 136. 



- Marchantia, 131. 



Mucor, 94. 



Penicillium, 100, 101. 

 Selaginella, 173. 



Vaucheria, 87, 89. 



Volvox, 78. 

 yeast, 25, 26. 



resistance of, 26. 

 Spore-mother-cells, reduction' mitosis in, 



255, 256, 257. 



Sporogenous cells, derived from oosperm, 

 250. 



of Aspidium, 163. 



Funaria, 140, 141. 



Marchantia, 131. 



Pinus, 201, 202, 206, 209. 

 Ranunculus, 231, 234. 



Scilla, 246. 



Selaginella, 173, 174. 



reduction-mitosis in, 255, 256, 257. 

 Sporophylls, 167, 173, 201, 212, 213, 236, 



249. 

 Sporophyte, 142. 



diploid, 257. 



of Jr J olysiphonia(=Tetrasporic plant), 



119. 



Stains, acid and basic, for nuclei, 251. 

 Stamen (= microsporophyll), 231, 236, 

 Starch in Aspidium, 149. [246. 



Chlamydomonas, 37, 41, 43. 



Elodea canadensis, 43, 47. 



Marchantia, 124. 



Pinus, 182, 184, 195. 



Polysiphonia, 114. 



Ranunculus, 217, 220. 



Scilla, 243. 



Spirogyra, 69. 

 Volvox, 78. 



a gel, 22. 



" Steamer," 59. 



Stereo-isomers, discovery of, 102. 



Sterilisation, methods of, 59, 60. 



principles of, 56, 58, 59. 

 Stigma, 233, 234, 235, 246. 

 Stimulus of gravity, 93, 94, 126. 



hunger, 40. 

 light, 38, 126. 



Stomata, 140, 143, 154, 181, 216, 222, 



243. 245- 

 Stomium, 162. 



Streaming of protoplasm, 48. 

 Style, 232, 234, 246. 

 Sub-cultures, 62. 

 Suberin, 198. 



Sucrose, inversion of, 30, 34. 

 Surface actions of colloids, 21, 22. 

 Suspensions, 21. 



Suspensor, 176, 208, 239, 248. 

 Sweetwort, 26. 

 Synapsis, 255. 

 Syncarpous iruit, 248. 



ovary, 246 (Fig. 89). 

 Synergidae, 234. 

 Synthetic forms, 170. 



TANGENTIAL section, 188, 197. 



Tapetum, 174, 231. 



i'artaric acid changed by Penicillium, 



lot. 



Tendrils of leguminous plants, 272. 

 Tetraspores, 116. 

 i halamus, 230. 

 Thallophyta, 121, 133, 168. 

 Thallus, 122. 

 Theca, 140. 



Torus of pit-membrane, 193 (Fig. 58). 

 Tracheids, 149, 173, 193, 195, 196, 197, 



199, 221, 228. 



Tradescantia virgimana, leaf-epidermis 

 of, i, 4 (Fig. 2). 



root apex of, 242 (Fig. 87). 

 Transpiration current, 156, 157, 228. 



function of, 157. 



Transport of organic substances, 116. 



stimuli, 77. 



Trichogyne, II7 . 



Tube-cell of pollen-grain, 207, 235. 



Turgor, 15. 



Tyndall, 58. 



ULTRA-MICROSCOPE, 21. 

 Unicellular plants, 75. 

 Unisexual plants, in. 

 Use and disuse, theory of, 277. 



VACUOLES, 7, 14, 15, 18. 



contents of, 19. 



contractile, of Volvox, 77. 



vacuoles of Chlamydomonas, 37, 

 Vagina, 140. [51, 52. 

 Vascular bundle. See Conducting tract. 

 Vaucheria sessilis. Lecture XI., 83-90 



(Fig. 16). 



antheridium of, 88. 



asexual reproduction of, 87, 89. 



cell-wall of, 84, 85, 86. 



chloroplasts of, 84, 85. 



cytoplasm of, 84. 

 division of labour in, 85. 



growth of, 86. 



nuclei of, 84, 87, 88. 



oil drops of, 85, 86. 



oogonium of, 88. 



photosynthesis of, 85. 



respiration in, 85. 



rhizoids of, 84, 85. 



sexual reproduction of, 87, 88, 89. 



