INDEX 
7 03 
Silk-cotton tree, Eriodendron ; 
-grass (W. I.), Nidularium ; 
-weed, Asclepias 
Silkworms, plants useful to, 206 
Silky oak (Austr.), Grevillea 
Silver-bell tree (Am.), Halesia ; 
-berry (Am.), Elaeagnus argen- 
teus Pursh. ; -fir, Abies , Picea ; 
-tree, Leucadendron ; -wattle, 
Acacia ; -weed, Potentilla 
Simple fruit, 107; -leaf, 51 
Sinistrorse, turned to left 
Sinuate leaf, 53 
Sinus, bay, re-entrant angle, 82 
Siphonogamy, fertilisation by pol- 
len tube 
Sisal hemp, Agave 
Sissoo, Dalbergia 
Sitka cypress, Chamaecyparis 
Sketching, 15 
Skirret, Sium 
Skull-cap, Scutellaria 
Skunk-cabbage, Symplocarpus 
Sleep-movements, 49 
Slide zone, Nepenthes , Sarracenia 
Slime formation, 161 
Sloe, Prunus 
Small-reed, Calamagrostis 
Smart weed (Am.), Polygonum 
Smell of flower, 102 
Smith, 178 
Snail flowers, 99, Alocasia, Ari- 
saema , Aspidistra, Rohdea 
Snake gourd, Trichosanthes an- 
guinaY. ; -head (Am.), Chelone\ 
-’s head, Fritillaria ; -wood 
(Ceyl.), Ophioxylon 
Snakeroot, Cimicifuga ; black - 
(Am.), Sanicula ; button- 
(Am.j, Liatris ; Senega-, Poly- 
gala 
Snapdragon, Antirrhinum , (W. 
I.) Ruellia 
Sneeze-weed (Am.), Helenium ; 
-wort, Achillea 
Snow, and plant distribution, 143 ; 
-ball tree, Guelder-rose ; -berry, 
Symphoricarpus ; -drop, Galan- 
thus ; -drop tree, Chionanthus, 
Halesia ; -flake, Leucojum ; 
-leaves, 144 
Soap, 203, Chlorogalum , Liliaceae, 
Limonia , Sapindus, Saponaria ; 
-berry-tree (W. I.), Sapindus ; 
-tree, Quillaja\ -wood (W. I.), 
Clethra', -wort, Saponaria 
Sobole, shoot from the ground 
Social habit of trees, 185 
Societies, plant, 179 
Soft-grass, Holcus 
Soil, effects of, 145 
Soja beans, Glycine 
Sola, wood of, Aeschynomene 
Soldier-plant (W. I.), Calliandra 
Solitary flower, 66 ; -ovule, 82 
Solomon’s seal, Polygonu?n 
Sorauer, 197 
Sordidus (Lat.), dirty white 
Sorgho, Andropogon Sorghum 
Brot. 
Soriferous, bearing sori 
Sorosis, fleshy multiple fruit 
Sorrel, Rumex ; wood-, Oxalis 
Soros, 54, Cycadaceae , Filicineae 
Leptosporangiatae , Pteridophyta 
Souari nut, Caryocar 
Souchong, Thea 
Sour-grass, Panicum conjugatum 
Berg. ; -sop, Anona 
Southern cold zone, 192 
Southernwood, Artemisia 
Sow-bread, Cyclamen ; -thistle, 
Sonchus 
Soybean, Glycine 
Sp., species 
Spadiceus (Lat.), chestnut-colour- 
ed, or bearing a spadix 
Spadix, 62, Palmae 
Spanish-bayonet, Yucca ; -berries, 
yellow berries ; -broom, Spar- 
tium ; -dagger, Yucca ; -liquorice, 
Glycyrrhiza ; -needle, Bidens ; 
-plum (W. I.), Spondias 
Sparrow-grass, Asparagus 
Sparsus (Lat.), scattered 
Spathe, 62, Palmae 
Spatterdock (Am.), Nuphar 
Spatulate, 52 
Spear-grass (Ceyl.), Andropogon 
contortus L., (Am.) Poa; -mint, 
Mentha ; -wort (Am.), Ranun- 
culus 
