INDEX 



Note. — Many matters are worked up in this index which on account of the 

 plan of the book could not be treated connectedly in the text. The reader 

 is therefore advised to bear this in mind when consulting these pages. 



The "absorptive capacity" of seeds relates to their capacity of absorbing 

 moisture from the air when exposed to the air in the broken condition, whether 

 or not previously exposed to heat. 



Abortion of ovules and young seeds, 



12, 330> 34i-343> 344-367- 

 Abrus precatorius : 



[a) Seed : water-contents and absorp- 

 tive' capacity, 123, 136; degree 

 of permeability, 94 ; hygro- 

 scopicity, 135, 165, 170; change 

 of weight with climate, 1 59 ; 

 proportions of coats and kernel, 

 189, 200; shrinking and swell- 

 ing, 4, 24, 40, 41, 200, 211, 469 ; 

 data for determining the swell- 

 ing regime, 200 ; drying of seed 

 swollen for germination, 469 ; 

 coloration, 369, 370, 386, 395- 

 399,402. 

 {b) Fruit: proportions of pericarp and 

 seeds, 327, 337, 338. 

 Acacia, genus : impermeability of seeds, 

 57, 59, 62, 84, 99, 109, 230 ; water- 

 contents and drying in time of 

 seeds, 230, 234, 235, 240. 

 Acacia Farnesiana : 



(a) Seed: water-contents, 136; ab- 

 sorptive capacity, 123, 136 ; im- 

 permeability, 94, no, III; 

 hygroscopicity, 165 ; effects of 

 mould, 107 ; proportions of 

 coats and kernel, 40, 189, 200 ; 

 shrinking and swelling, 24, 40, 

 200, 211, 321 ; data for deter- 

 mining the shrinking and swell- 

 ing regime, 200 ; coloration, 



386, 39°- 

 ij)) Fruit : drying, 262, 321, 326 ; 

 data for determining the drying 

 regime, 326 ; proportions of 

 pericarp and seeds, 298, 326. 



Acacia, species, 386, 394. 

 Acer, 394. 

 Aceraceae, 487. 

 Achras Sapota : 



[a) Seed : water-contents and absorp- 

 tive capacity, 137 ; permeability, 

 94 ; hygroscopicity, 164 ; change 

 of weight with climate, 159 ; 

 effects of baring the kernel, 

 124 ; proportions of coats and 

 kernel, 191, 409 ; embryo, 404, 

 409. 

 (J)) Fruit : proportions of pericarp 

 and seeds, 297, 325, 494. 

 Acorn : see under Quercus Robur. 

 Acrocomia lasiospatha : 



{a) Seed: shrinking, 26, 321, 411, 

 499, 500; embryo, 408, 411, 

 413 ; transient germinative 

 capacity, 418. 

 {b) Fruit : drying, 264, 321, 325, 499, 

 500 ; proportions of pericarp 

 and seed, 297, 325, 499 ; the 

 drying regime, 325, 499 ; cavity 

 in the kernel, 415. 

 Acrocomia sclerocarpa, 325, 418, 499, 



500. 

 Adansonia, 66. 



Adaptation : of fruits for seed-dispersal, 

 10, 12, 255-257, 275, 292 ; of seeds 

 for dispersal, 96, 97, 112, 196, 197, 

 221, 368, 395, 400 ; of impermeable 

 seeds for dispersal by water, 96, 97, 

 112 ; of impermeable seeds foir soil- 

 conditions, 62, 67, 112. 

 Adenanthera pavonina, seeds of : water- 

 contents and absorptive capacity, 

 118, 135; impermeability, 93, 96; 



5" 



