Index to Vo is. XXI-XXX. 
39 
Vessels, diameter and length of, in Acacia, 
24 , 94 ; in Deeringia altissima, 24 , 97 ; 
in Eucalyptus, 24 , 96 ; in Ficus elastica, 
24 , 97 ; in Nerium Oleander, 24 , 97 ; in 
Tecoma, 24 , 97. 
Vicia Faba, aerating system (*), 29 , 627 ; 
behaviour of chromatin in meiotic divi- 
sions (*), 28 , 633 ; mitosis in gametophyte 
(*), 25 , 848 ; mitosis in sporophyte (*), 
25 , 845 ; question of heterotypical re- 
duction in somatic cells (*), 24 , 788. 
Vines, S. H. : Harry Marshall Ward (*), 
21, ix. 
— The Proteases of Plants. V. 22,103. 
— Id. VI. 23 *, 1. 
— Id. VII. 24,213. 
Viola, archesporium and tapetum (*), 26 , 
157 ; axial row (*), 26 , 157 ; development 
of chasmogamic flowers (*), 26 , 155; 
female gametophyte (*), 26 , 158 ; ovule 
origin, 26 , 157; pollination and pollen- 
tube development (*), 26 , 160; size of 
flower-bud and stage of development, 26 , 
156. 
Vitaceae, structure of wood (*), 27 , 133. 
Vitality and self-digestion of endosperm of 
Gramineae, 22 , 449. 
Vitis, development of sieve-tubes (*), 22 , 
274- 
Volutin of Saccharomyces (*), 24 , 64. 
W. 
Wager, H. : The Life-history and Cytology 
of Polyphagus Euglenae (*), 27 , 173. 
— The Perception of Light in Plants (*), 
23 , 459. 
— and Peniston, A. : Cytological Observa- 
tions on the Yeast Plant (*), 24 , 45. 
Walker, N. : On Abnormal Cell-fusion in 
the Archegpnium ; and on Spermato- 
genesis in Polytrichum (*), 27 , 115. 
Wallflower, different types of hair (*), 22 , 
714 - 
Ward, F. K. : Some Plant Formations 
from the Arid Regions of Western China, 
26 , 1105. 
Ward, Harry Marshall, Biography (*), 
21, ix. 
Water, effect of, on roots, 25 , 731. 
Water-balance of desert plants (*), 26 , 71. 
Water-culture, factors, 30 , 428 ; interpreta- 
tion of results, 30 , 427 ; limitations, 30 , 
435 ; relationship between concentration 
and rate of growth, 29 , 89 ; 30 , 77. 
Water-plants,, transpiration current in sub- 
merged, 23 , 635. 
Water-requirements of terrestrial Mono- 
cotyledons, 25 , 724. 
Water-storage, organs, 25 , 724; in succu- 
lents, 26 , 425. 
1 Watson, D. M. S. : On Mesostrobus, a 
New Genus of Lycopodiaceous Cones 
from the Lower Coal Measures, with a 
Note on the Systematic Position of Spen- 
cerites (*), 23 , 379. 
Watson, D. M. S. : On the Structure and 
Origin of theUlodendroidScar(*),28,48i. 
Weed flora of Norfolk, comparison with that 
of Bedfordshire and the West Country, 
27 , 154. 
Weeds, common and local names, 27 , 163. 
— and crops, inter-relationship, 27 , 155- 
— of arable land in relation to soil, 25 , 155; 
26 , 95 ; 27 , 141 ; 30 , 162;. 
Weiss, F. E. : A Stigmaria with Centripetal 
Wood (*), 22 , 221. 
Welsford, E. J. : Conjugate Nuclei in the 
Ascomycetes (*), 30 , 415- 
— Nuclear migrations in Phragmidium vio- 
laceum (*), 29 , 293. 
— The Genesis of the Male Nuclei in Lilium 
(*), 28 , 265. 
— The Morphology of Trichodiscus elegans, 
gen. et sp. nov. (*), 26 , 239. 
— see Benson, M. 
— see Blackman, V. H. 
— see Fraser, H. C. I. 
Welwitschia mirabilis, embryo (*), 24 , 759 ; 
leaf-structure (*), 27 , 347 ; morphology 
of bracts (*), 27 , 547 ; seedling-structure 
(*), 24 , 322. 
Wernham, H. F. : The Morphology of 
Phylloglossum Drummondii (*), 24 , 335. 
West, C. : On the Structure and Develop- 
ment of the Secretory Tissues of the 
Marattiaceae (*)> 29 , 409. 
— Stigeosporium marattiacearum, gen. et sp. 
nov., 30 , 357. 
— and Lechmere, A. E. : On Chromatin 
Extension in Pollen Mother-cells of Lilium 
candidum, Linn. (*), 29 , 285. 
West, G. S., and Griffiths, B. M. : The 
Lime-sulphur Bacteria of the Genus Hill- 
housia (*), 27 , 83. 
White, J. : The Influence of Pollination on 
the Respiratory Activity of the Gynoecium, 
21, 487- 
Widdringtonia, spp., seedling-structure (*), 
22, 706. 
Wigglesworth, G. : The Young Sporo- 
phytes of Lycopodium complanatum 
and Lycopodium clavatum (*), 21 , 
2 1 1. 
Willis, J. C. : The Distribution of Species 
in New Zealand (*), 30 , 437. 
— The Evolution of Species in Ceylon, with 
Reference to the Dying Out of Species, 
(*), 30 , 1. 
— The Origin of the Tristichaceae and 
Podostemaceab, 29 , 299. 
— and Burkill, I. H. : Flowers and In- 
sects in Great Britain. Part IV. Observa- 
tions on the less Specialized Flowers of 
the Clova Mountains, 22 , 603. 
Wilson, M. : On Spore Formation and 
