INDEX, 
GLOSSARY AND LIST OF SYNONYMS. 
Figures in bold type (25) refer to pages whereon the species or 
subject is more particularly dealt with; figures in italics (25) refer to 
pages containing illustrations. 
Achene, 123 
Acicular— bristle-like 
Acuminate—tapering to a _ long 
point, 21, 139, 146, 147 
Acute—simply pointed, 19, 21 
Adaptations, 20, 24, 36, 37, 70, 
124, 125, 132 
Adventitious roots, 8, 131 
Agriculture, 2, 3 
Agropyrum—Wheat-grass, 11, 14, 
Spica-venti, 31, 104, 130, 161, 
162; A. stolonifera—var. of dA. 
alba, 14, 51, 52, 104, 145; A. 
vulgaris—var. of A. alba, 29, 
51, 52, 66, 104, 145 
Aira—Hair-grass, 6, 20, 21, 36, 48, 
88; 89, 90, 91, 103, 104, 105, 
106, 4005 112, VET, 11s, 125, 
127, 138, 141, 144, 145, 159, 
162; A. alpina—var, of A. ce- 
22, 25, 26, 36, 49, 50, 51, 57, 69, 
88, 90, 91, 106, 107, 108, 144, 
150, 167, 170, 171; A. caninum, 
7, 21, 28, 34, 57, 80, 92, 107, 
150, 168, 169,170; A. junceum 
—var. of A. repens, 21, 29, 33, 35, 
anor, Go,- 81, 102, 107; A. 
repens, 7, 30, 57, 80, 81, 93, 
102, 106, 149, 150, 169, 170 
Agrostis-—Bent-grass, 7, 15, 22, 25, 
49, 50, 51, 52, 53, 57, 82, 88, 89, 
91, 103, 104, 105, 112, 118, 
125, 136, 187, 141, 144, 145, 
159, 160,, 161; A. alba, 7, 11, 
13, 14, 28, 29, 32, 33, 34, 51, 52, 
69, 92, 104, 144, 145, 162; 
A, canina, 7, 11, 20, 28, 29, 37, 
ak 2, 1O4, -161,, 162); 2A. 
setacea, 31, 104, 161, 162; A. 
W. 
spitosa ; A. canescens, 8, 11, 14, 
32, 49, .66, 78, 91, 112, 159; 
A. caryophyllea, 8, 10, 14, 29, 
32, 46,118,160; dA. céspitosa, 
6, 11, 14, 22, 23, 25, 28, 33, 37, 
41, 47, 48, 63, 65, 68, 69, 77, 
104, 106, 117, 128, 160, 161; 
A. flexuosa, 7, Lil, 14, 29, 338, 
34, 46, 68, 70, 71, 79, 118, 
158, 160, 161, 171; A. montana 
—var. of A. flexuosa ; A. setacea 
—var. of A. flexuosa; A. pre@coz, 
8, 10, 29, 30, 32, 47, 91, 112, 
160 
Air-spaces, 21, 39, 40, 62 
Aleurone layer, 121, 122, 123 
Alopecurus, 25, 53, 55, 88, 89, 90, 
93, 101, 109, 110, 119, 124, 152, 
158, 155; A. alpinus, 31, 101, 
12 
