234 



INDEX. 



Bay Floret, 164; practical work, 

 221 



Receptacle of flower bead of Dog- 

 daisy, 163 



Eeproduction, asexual, 108; in 

 Mucor, 111; of Fern, 129; of 

 Pleurococcus, 110; of Yeast, 4; 

 sexual, in Mucor, 114; in Spiro- 

 gyra, 116 ; of Fern, 134 



Reserve materials, 14 



Resin ducts, 64 



Respiration, 15 



Rhizome, of Fern, 121 ; minute 

 structure of, 123; of Sedge, 23 



Ribes grossularia, see Gooseberry 



Rings, annual, 68 



Boot, geotropism of, 33; trans- 

 verse section of, 35; practical 

 work, 205 



Root and Shoot, 18 



Root-cap, 37, 41; practical work, 

 206 



Root-hairs, 46; practical work, 

 205 



Roots, adventitious, 26 ; secondary, 

 44; tertiary, 44 



Rosacese, 194 



Rubia tinctorum, 170 



Ruscus, leaves of, 52 



Saccharomyces cerevisiae, 1; prac- 

 tical work, 199 



Sambucus nigra, pith of, 13; 

 practical work, 200 



Scalariform vessels, 128 ; practical 

 work, 217 



Scale-leaf, 94 



Schulze's solution, 3, 200 



Sclerenchyma, in Oak bark, 88; 

 of Fern rhizome, 123 



Scotch fir, cambium of, 73 



Secondary nucleus of embryo-sac, 



174; practical work, 223 

 Section, radial, 70; tangential, 70 

 Sedge, rhizome of, 24 

 Seed, practical work, 202, 222 

 Seed-leaves, see Cotyledon 

 Seed-plant, 140 

 Seeds, distributed by animals, 182, 



187, 189 ; by wind, 181 

 Self-fertilisation, 158 

 Senecio, flower of, 164 

 Senecio vulgaris, see Groundsel 

 Sepal, 144 



Sexual reproduction, 114 

 Shepherd's Purse, embryo of, 176 ; 



practical work, 223 

 Sieve-plates, 58 ; -tube, 58 ; -tubes 



in Fern rhizome, 127 

 Silene, 161 ; flower of, practical 



work, 222 



Solanum tuberosum, see Potato, 23 

 Sorus, 129 

 Species, 141 

 Spermaphyte, 140 

 Spirogyra, 6 ; conjugation in, 117; 



practical work, 199, 214 

 Spongy tissue, 102 

 Sporangia, of Fern, 129 ; opening 



when dried, 218; of Mucor, 113 

 Spore-bearing hypha, 112 

 Spores of Fern, 119, 129; practical 



work, 218; of Mucor, 112; prac- 

 tical work, 215 

 Sporophyte, of Fern, 119 

 Stability of plants, 91 

 Stamen, 147 

 Stamens in wind- fertilised flowers, 



167 



Standard petal, 149 

 Starch, 2, 28, 200 

 Stele, preface, p. v 



