_Festuca_--Fescue, 2, 6, 7, 15, 21, 25, 36, 49, 51, 53, 90, 91, 92, 108, 109, 110, 113, 114, 116, _124_, 144, _147_; _F. arundinacea_--var. of _F. elatior_, 144, 151; _F. calamaria_--_F. sylvatica_; _F. duriuscula_--var. of _F. ovina_, 46, _69_, +78+, 80, 147, 172, 173; _F. elatior_, 6, 7, 11, 13, 14, 18, 19, 22, 25, 28, 32, 44, +50+, 51, 63, _64_, 82, _84_, 108, 111, 115, +116+, 128, 131, _143_, +144+; _F. gigantea_--_Bromus giganteus_; _F. heterophylla_--var. of _F. ovina_, 13, 46, 69, 71, 78, 80, 147, +172+, 173; _F. uniglumis_, 31, 92, 111; _F. loliacea_--var. of _F. elatior_, 90, 108; _F. Myurus_, 8, 10, 14, 19, 20, 28, +46+, 90, 91, 92, 99, +111+, 115, 130, 166, +171+, _173_; _F. ovina_, 7, 8, 11, 13, 14, _19_, 20, 22, _24_, 28, 32, 33, 36, +45+, 46, 68, 69, 70, +79+, +111+, 112, 115, +116+, 134, +147+, 151, 171, _172_; _F. pratensis_--var. of _F. elatior_, 7, _19_, _24_, 49, 63, _64_, _84_, 111, _143_, +144+; _F. procumbens_--_Poa procumbens_; _F. rigida_--_Poa rigida_; _F. rubra_, var. of _F. ovina_, 7, 13, 14, 18, _24_, 33, 46, 69, 78, 80, 147, 151, +171+, _172_; _F. sabulicola_--_F. rubra_, 46; _F. sciuroides_--var. of _F. Myurus_, 25, 26, 46; _F. sylvatica_, 6, 11, 14, 28, 34, +116+, _131_, 147; _F. tenuifolia_--var. of _F. ovina_, 46, 148, 172; _F. vivipara_--var. of _F. ovina_ Festuceæ, 122 _Fibichia umbellata_--_Cynodon Dactylon_ Fibrous roots, 8 Fibrous Twitch--_Agropyrum caninum_ Field Brome--_Bromus arvensis_ Filament, 94 Fine Bent--_Agrostis vulgaris_ Finger-grass--_Panicum glabrum_ Fiorin--_Agrostis alba_ Firing, 35, 38 Flanking lines, 41, 53, _63_, 73, 74 Flat leaves, 20, 47, 77 Flat shoots, 15, _16_, 20 Flattened Meadow-grass--_Poa compressa_ Flavour, 27 Fleshy fruits, 123 Floating leaves, 39 Floating Foxtail--_Alopecurus geniculatus_ Floating Meadow-grass--_Glyceria fluitans_ Floating Sweet-grass--_Glyceria fluitans_ Floral diagram, _94_, 95, _96_ Flower, 83, _84_, _85_, +86+, _87_, 89, 90, _93_, _94_, 95, _96_, 97, 99, 105, 106, 112 Flowering glume--the outer palea Flowering stem, 83, 84 Flying Bent--_Molinia cærulea_ Folded leaves, 15, _16_, 20, 24, 25, 63, _69_, 70, 74 Foreign grasses, 30 Forestry, 3 Forest species, 27, 28, 33 Form of lamina, 19, 20 Foxtail grass--_Alopecurus_ Foxtail type of inflorescence, _9_, 88, 100 Fructification--fruiting, 120 Fruit, 119, 123, 125, _126_, _129_, +134+, +135+-+174+ Fruit-coats, 121, 122 Functions of awns, 95, 125, _126_, 127 Functions of ears, 19 Functions of leaves, 2 Functions of ligule, 18, 19 Functions of lodicules, 96 Functions of spear, 132 Furrows, 23, 78 _Gastridium_--Nit-grass, 90, 91, 101, 103, 105; _G. lendigerum_, 31 Germination, 123, +131+-+133+ Germination of pollen-grain, _120_, 121