Index . 
viii 
Figures. 
PAGE 
7. Intercalary resting spores of Stigeosporium Marattiacearum in various 
stages of development (West) .86 
8. Terminal resting spores of Stigeosporium Marattiacearum in various 
stages of development (West) . . . ' . . -87 
9. Part of a transverse section of a moderately large root of Danaea alata, 
Sm., showing endophyte in outer cortical cells (West) ... 96 
1. Zoogonidangia with variations in thickening of the wall (Bristol) . 116 
2. Phyllobium sphagnicola (Bristol) 123 
1. Aquilegia vulgaris (Blackburn) 155 
2. Anemone vitifolia. First plumular node (Blackburn) . . . 157 
3. Anemone nemorosa. Seed-coat removed (Blackburn) . . • 158 
4. Eranthis hiemalis (Blackburn) . * 5 8 
5. Nigella hispanica. Part of vascular ring in first internode (Black- 
burn) 161 
6. Nigella hispanica. Cotyledonary node (Blackburn) . . .161 
7. Aconitum Wilsonii. First plumular node (Blackburn) . . .163 
8. Clematis Vitalba (Blackburn) . . . . . .165 
9. Clematis orientalis. Hypogeal form (Blackburn) .... 166 
10. Clematis Flammula (Blackburn) 166 
• 11. Ranunculus arvensis. First plumular node, showing ’part of ring of 
bundles (Blackburn) 167 
12. Ranunculus arvensis. First plumular node, primary structure dis- 
guised by secondary thickening (Blackburn) . . . .168 
13, 14. Ranunculus gramineus. First plumular node at two stages under the 
same magnification (Blackburn) 169 
15, 16. Ranunculus gramineus. First plumular internode at two stages 
(Blackburn) 170 
17. Ranunculus Ficaria (Blackburn) 171 
18. Trollius asiaticus. Part of first plumular node (Blackburn) . . 172 
19. Magnolia acuminata. Part of vascular ring, first plumular internode 
(Blackburn) 175 
1-3. The Effect of one Plant upon Another (Pickering) . .* . .182 
Semi-diagrammatic view of the air-flue (Blackman and Knight) . 218 
1. Graphs showing parallelism between stomatal aperture and relative 
transpiration (Knight) . . . . - . . . .229 
2. Graphs showing the lack of agreement between relative transpiration 
and stomatal aperture (Knight) ....... 231 
3. Graphs showing the continued opening of the stomata in spite of the 
increasing water deficiency (Knight) ...... 235 
4. Graphs showing an increase in the transpiration rate as a result of in- 
creasing the water-content of the plant by temporarily decreasing 
the evaporating power of the air (Knight) ..... 237 
Reduction of Transpiration Observations (Thomas and Ferguson) . 246 
1. Type of curve showing reversible adsorption equilibria with a given 
solute, solvent, and adsorbing phase (Mangham) .... 296 
2. Very diagrammatic representation of a portion of a sieve-plate and the 
walls of a sieve-tube to show continuity of protoplasm (Mangham) 301 
New Zealand and outlying islands (Willis) ..... 327 
1. Danaea alata, Sm. Transverse section through the apex of an old 
plant, showing bud-protection (West) 363 
2. Danaea nodosa, Sm. Part of the caudex of an adult sporophyte, 
showing a young adventitious bud (West) 364 
3. A. Danaea aiata, Sm. Model of the stelar system of a very young 
sporeling. Side view. B. Diagram showing divergence of the first 
*two leaves (West) ......... 366 
