186 



INDEX, GLOSSARY, 



Orchids, 2 



Ovary, 86, 87, 89, 95, 96, 97, 119, 

 121 



Ovate-acute — egg-shaped in out- 

 line, but the free narrow end 

 pointed, 61 



Ovate-lanceolate — ovate, but taper- 

 ing above, 168 



Pale— Palea, 86, 89 



Palea, 84, 83, 86, 87, 92, 93, 95, 

 98, 97, 99—118, 119, 120, 12i, 

 125, 127, 128, 129, 130, 131, 184, 

 135-174 



Pampas-grass, 1 



Panic-grass — Panicum 



Panicle, 5, 12, 87, 88, 90, 91, 103, 

 105, 109—118 



Panicum, 4, 19, 67, 69, 72, 87, 90, 

 92, 101, 105, 109, 124, 135, 136, 

 137, 142; /'. Grus-galli, 137; P. 

 glaucum, 30 ; P. plicatum, 21 ; P. 

 sanguinale, 30 ; P. verticillatum, 

 30 



Pajjillffi — protruding cells not long 

 enough to be termed hairs, 64, 

 67 



Pappus, 125 



Parallel venation, 21, 22 



Parenchyma — ordinary soft cel- 

 lular tissue of herbaceous parts, 

 64, 65 



Partial inflorescence, 86 



Pasture, 1, 10 



Pasture-grasses, 27, 28, 37 



Perennial Beard-grass — Polypogon 

 littoralis 



Perennial grasses, 10, 11, 40, 43, 

 58, 114 



Perennial Oat — Avena pratensis 



Perennial Oat-grass — Avena pra- 

 tensis 



Perfect flowers, 89, 90, 99, 100, 

 105, 106 



Perianth — the floral coverings, 96 



Pericarp — the coats of the true 

 fruit, 121, 122 



Petiole, 5, 17 



Phalaris — Canary grass, 88, 101, 

 109, 136 ; P. arundinaeea — Di- 

 graphis arundinaeea ; P. canari- 

 ensis, 31, 139 



Pldeum, 66, 88, 89, 90, 91, 93, 102, 

 109, 110, 136, 137, 142 ; P. alpi- 

 num, 30, 102 ; P. arenarium, 7, 10, 

 29, 37, 55, lOla, 136; P.asperum, 

 31, 55, 102, 136; P. Bcehmeri, 

 8, 31, 55, 102, 136; P. nodosum— 

 var. of P. pratense ; P. phala- 

 roides — P. Bcehmeri ; P. pratense, 

 7, 8, 11, 13, 25, 28, 32, 55, 70, 

 76, 102, 128, 135 



Phloem, 67 



Phragndtes communis — Arundo 

 Phragmites 



Physiognomy, 36, 37 



Piercing of soil, 132 



Pilose — with scattered, rather long 

 soft hairs, 59 



Plaited vernation, 21 



Plantago, 3 



Plicate — plaited 



Plume-like inflorescence, 91, 103 



Plumule, 121, 123, 132, 133 



Poa, 2, 15, 20, 21, 23, 25, 26, 47, 54, 

 61, 74, 83, 84, 88, 89, 90, 91, 92, 

 103, 104, 109, 110, 113, 114, 115, 

 116, 118, 127, 131, 140, 141, 144, 

 146, 151, 162 ; P. alpina, 8, 11, 



13, 14, 16, 17, 31, 44, 54, 63, 

 114, 134, 146; P. annua, 8, 10, 



14, 16, 30, 34, 42, 53, 54, 63, 

 68, 74, 75, 114, 127, 141, 146; 

 P. aquatica — Glyeeria aquatica ; 

 P. bulbosa, 8, 11, 14, 29, 54, 69, 

 111, 114, 146 ; P. compressa, 8, 

 11, 14, 15, 16, 30, 32, 42, 53, 54, 

 63, 69, 74, 111, 114, 139, 140; 

 P. distans, 29, 30, 114, 146 ; P. 

 fertilis — P. serotina, 45 ; P. 

 fluitans — Glyeeria fiuitans ; P. 



laxa, 31, 134; P. loliacea, 31, 

 108, 114, 146; P. maritima, 8, 

 11, 14, 16, 20, 22, 26, 29, 47, 

 54, 111, 114, 146; P. nemoralis, 

 7, 11, 14, 15, 28, 34, 45, 54, 63, 

 74, 75, 113, 114, 139, 140, 141. 

 161 ; P. pratensis, 7, 11, 13, 14, 

 16, 17, 27, 32, 33, 41, 42, 44, 

 45, 54, 55, 67, 75, 113, 114, 

 139, 140, 141 ; P. procumbens, 

 31, 111, 114 ; P. rigida, 10, 14, 

 30, 111, 114, 146; P. stricta — 

 var. of P. alpina, 134 ; P. trivi- 



