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 (^5) 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, 3G, 37, 70, 



124, 125, 132 

 Adventitious roots, 8, 131 

 Agriculture, 2, 3 



Agropyrum — Wheat-grass, 11, 14, 

 22, 25, 26, 36, 49, 50, 51, 57, 69, 

 88, 90, 91, 106, 107, 108, 144, 

 150, 167, 170, 171; A. canimim, 

 7, 21, 28, 34, 57, SO, 92, 107, 

 150, 168, 169, 170; A. junceum 

 — var. of A. repens, 21, 29, 33, 35, 

 36, 57, 66, 81, 102, 107; ^1. 

 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, 137, 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, 2s, 29, 37, 

 51, 52, 104, 161, 162 ; A. 

 setaeea, 31, 104, 161, 162 ; A. 



W. 



Spica-venti, 31, 104, 130, 161, 

 162 ; A. stolonifcra — var. of A. 

 alba, 14, 51, 52, 104, 145 ; A. 

 vulga)-is — var. of A. alba, 29, 

 51, 52, 66, 104, 145 

 4z?Y<— Hair-grass, 6, 20, 21, 36, 48, 

 88, 89, 90, 91, 103, 104, 105, 

 106, 110, 112, 117, 118, 125, 

 127, 138, 141, 144, 145, 159, 

 162 ; A. alpina — var. of .4. cce- 

 spitosa ; A. canescens, 8, 11, 14. 

 32, 47, 66, 78, 91, 112, 159; 

 A. can/ophyllea, 8T 10, 14, 29, 

 32, 46", 118. 160; A. acspitosa, 

 6, 11, 14, 22, 23, 25, 28, 33, 37, 

 41. 47, 48, 63, 65, 68, 69, 77, 

 104, 106, 117, 128, 160, 161 ; 

 A. fle.vuom, 7, 11, 14, 29, 33, 

 34, "46, 68, 70, 71, 79, 118, 

 158, 160, 161, 171 ; A. viontana 

 — var. oi A. fte.ruosa ; A. setaeea 

 — var. of A. fiexuosa; A. prcecox, 

 8, 10, 29, 30, 32, 47, 91, 112. 

 160 

 Air-spaces, 21, 39, 40, 62 

 Aleurone layer, 121, 122. 123 

 Alopecurm, 25, 53, 55, 88. 89, 90, 

 93, lOl, 109, 110, 119, 124, 152. 

 153, 155; A. alpinus, 31, 101, 



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