INDEX AND GLOSSARY 



353 



Sedges, phyllotaxy, 49. 



Seed: a reproductive body containing an 

 embryo plant. 5. 



Seed, coats, 104: starch in, 31; dispersal, 

 158: -variations, 'J'-'-. 



Selection, 231, 



Self-fertilization: secured by pollen from 

 same flew fertilization, 



Self-heal, 327. 



Self-pollination: transfer of pollen from 

 Btamen to pistil of same flower; close- 

 pollination, (263 



Sepal: one of the separate leaves of a 

 calyx, (2.">1). 



Septicidal: dehiscence along tin parti- 

 tions, (292). 



Serrate: saw-toothed, 

 ile: no! stalked, 1 1 i 



Shade and leaves, 98; : '"'l plants, 215. 



Shadows in trees, 61. 



Sharon, Rose of, 31 I. 



Sheep and plants, 224. 



Sheepberry, 334, Fig. 279. 

 P Borrel, 305, Fig. 153. 



Shepherdia, hairs, 270. 



Shepherd's purse capsule, 152, 311, 



Sieve tissue, 254. 



SilicJe: Bhort fruil of I Irucifi i 



Silique: long fruit of Cruciferee, 



Sill. liium 50. 



Simple pistil: of one carpel 

 Sinistrorse; left-handed, 231 

 Skunk cabbage, in. 225, 250, 290. 



of leaves, 50. 

 slips, 24. 



Smartweed, 125, 136, 1 18, B05, 308. 

 Smilacina racemosa 294 Btellata, 294. 

 Smilai of florists, 103, 294, Pig I 14 

 Smilax tendril, 111. 

 Snapdragon, 137 332, Fig. 220. 

 Snowball, L45, Figi 

 Siim lurry, Pig 

 Snowdrop, 296 

 Snowflake, 296. 

 Soapberrj famil] . 815, 

 Soapwort . 307. 

 219. 

 Softwood cutting, 24. 



Soil and plants, 200) and variation 



holds iif iter from 



Solanum, LM 12, 219, - L 



Solldago, 



Solitary flowers, 11". 



J, 294; false, '-".'i 

 Soredia ' 

 Sori, 172, 184, 

 Sorrel, 305 Pig. 153. 

 spadix: thick or fleshy Bpike of certain 



plan' 

 Spanish bayonet, 162; moss - 

 Spathe: bract surrounding or attending 



a spadix, 280 , 141. 

 Spatulate, 94. 

 Spearmint, 327, Pig 184. 



es, 275. 

 Spencer, quoted, 231. 

 Spermatozoids, 190. 

 Sperm-cell 

 Spidexwort, 235. 



Spike: compact more or l< in- 



determinate cluster, with flowers 



sile or nearly so, 

 Spike], -t: a secondary spike; one i 



compound spike, 1 16, 

 Spikenard, false, 294 

 Spines, 104 

 Spirea inflorescence 117. Ki^ lT'.r 



gyra 178 m 



Spleen wort, 28) 



Sporangia of ferns, 172; stamens, 124. 

 SporangiOi l-i 



Spore: a simple reproductive body, 



ally composed of a single d< 11, 



containing no embi 

 Spore case, 172, 

 Sporogonium, 188. 

 Sporophyll, ivr,. 

 Sporopbyte, 171 194. 



Spruce com I 'is 271 . w 



Squash frull . 1 M, Pig I on, 



i.i G 



Squlrrolii and I 

 241, 



Stamlnnt* 



til 



1 



W 



