188 



INDEX, GLOSSARY, 



Saud-binders, 13, 35, 36, 48, 102, 



107, 108 

 Sand Cat's-tail — Phleum aren- 



arium 

 Sand dunes, 35, 36 

 Sand species, .29, 32, 36 

 Sandy situations, 8, 29, 33 

 Savannahs, 1, 38 

 Scaberulous— slightly rough to the 



touch, 22, 45, 164 

 Scabrid — rough to the touch, 22, 



47, 54 

 Scarious — as if scorched by fire, 



92, 145 

 Scents, 27 

 Sclerenchyma — mechanical tissue, 



62, 65, 66, 67, 68, 69, 70, 71, 74, 



75, 76, 79, 80 

 Sclerochloa — Poa 

 Sclerochloa maritima — Poa niari- 



tima ; S. procumbens — Poa pro- 



cumbens ; S. rigida — Poa rigida 

 Scorpion-grass — Myosotis 

 Scutellum, 121, 123 

 Sea Barley — Hordeum maritimum 

 Sea Cafs-tail — Phleum arenarium 

 Sea-grass — Zostera 

 Sea Hard-grass — Lepturus incur- 



vatiis 

 Sea Lyme-grass — Ehjmus arenariiis 

 Sea Mat-grass — Psamma arenaria 

 Sea Mat- weed — Psamma arenaria 

 Sea Meadow-grass — Poa maritima 

 Sea Poa — Poa maritima 

 Sea Reed — Psamma arenaria 

 Sea-side grasses, 27, 29 

 Secondary roots, 121, 123, 131, 



183 

 Secund — turned to one side, 9, 89, 



108, 109, 114 

 Sedges, 3, 4, 33, 35, 121 

 Seed — strictly the contents of the 



caryopsis (fruit), but in practice 



the fruit and its adherent paleae 



etc. (chaff) are termed "seed," 



119, 120, 121, 123, 124, 125, 127, 



12.S, 129, 130, 131, 134, 135— 



174 

 Seed-coats, 121, 122 

 Seedhngs, 132, 133 

 Semi-aquatic species, 28, 29 

 Separation of fruits, 124 



Serrula? — minute tooth-like asperi- 

 ties, 22, 91, 173 

 Sesleria — Moor-grass, 22, 25, 63, 



64, 68, 90, 91, 93, 101 ; S. carulea, 



17, 42, 67, 108, 149, 151 

 Sessile — sitting directly on an axis 



without an intervening stalk, 87, 



99, 107 

 Setaceous— bristle-like, 16, 19, 20, 



21, 24, 45, 111, 113 

 Setaria — Panicum 

 Sexual organs, 134 

 Shade action of grasses, 35 

 Shade-grasses, 20, 28, 33, 34, 70 

 Shapes of caryopsis, 127 

 Shapes of leaves, 4, 19, 20 

 Shapes of shoot, 16 

 Sharp-edged shoots, 16 

 Sheath, 5, 8, 12, 15, 16, 17, 18, 19, 



20, 22, 51, 95, 133 

 Sheep's Fescue — Festuca ovitia 

 Shelving sheath-margin, 22 

 Shoot, 10, 12, 15, 16, 123 

 Sieglingia decumbens — Triodia de- 



cumhens 

 Siliceous — impregnated with flint — 



silex, 64, 65, 66 

 Silky Bent-grass — Agrostis Spica- 



venti 

 Silvery Hair-grass — Aira caryo- 



phijllea 

 Single - husked Fescue — Festuca 



uniglumis 

 Slender Foxtail — Alopecurus agres- 



lis 

 Small grasses, 7 

 Small Reed — Galamagrostis 

 Smooth Brome — Brovius racemosus 

 Sociable plants, 36 

 Sod, 37 



Sodium chloride, 33 

 Soft Brome — Bromus mollis 

 Soft-grass — Holcus 

 Soft Holcus — Holcus mollis 

 Soil formation, 36 

 Soil protection, 36 

 Solid leaves, 46 

 Solid stems, 4 

 Sour soils, 33 

 Spartina — Cord-grass, 69, 87, 90, 



99, 105 ; S. stricta, 27, 31, 78 

 Spear, 123, 132 



