GLOSSAKY AND GENEKAL INDEX 

 TO VOL. II. 



Absence of pericycle, 130, 140, 143, 154 



Absorption by root-liairs, 416, 436 



— of gases, 438 



nitrogen by Leguminosae, 437 ; by 



j)itcher plants, 440. 453 



Accrescent. A term applied to the calyx, 

 when it continues to grow after pol- 

 lination of tlie pistil 



Achlamydeous. Having neither calyx nor 

 corolla 



Acropetal succession. The regular deve- 

 lopment of leaves or branches in such 

 order that the youngest is always 

 nearest to the apex of the axis which 

 bears them 



Actinomorphic flowers. Flowers which 

 can be divided into two precisely 

 similar halves bj' every possible ver- 

 tical section 



Acyclic floireis. Those in which the 

 leaves of the flower are arranged spi- 

 rally on the axis instead of being in 

 whorls 



Adhesion. Tlie condition of union to, or 

 freedom from, one another of the 

 separate whorls of the floral leaves 



Adventitious. Arising irregularly, or not 

 in acropetal succession. Applied to 

 certain branches of stem or root 



^cidiospores, 89 



^cidium, 74, 87 



Estivation. The mode in which the 

 leaves of the perianth are arranged in 

 the flower-bud 



After-effect, 511 



Aggregation, 498, 505 



Aleurone grains, 451 



Alliances, 6 



Alternation of generations {antithetical). 

 A regular alternation of gametophyte 

 and sporopliyte iu the life cycle of a 

 plant, 514 



{homologous). An irregular suc- 

 cession of gametophy tes, some 

 of which produce sexual cells 

 while the remainder only de- 

 velop gonidia, 31, 515 



Amentaceous. Having its flowers ar- 

 ranged in catkins 



Amides, 444, 467 



Ama'hoid incvements. The creepii;g 



movements of masses of naked proto- 

 plasm, 67, 76 

 Amphigastria, 110 

 -1 mphilropous. Semi-anatropous 

 Anabolism, 433 

 Anatropous ovule. One whose nuceUus 



remains straight but which becomes 



inverted during development, owing 



to the greater growth of one side 

 Andrcecium. The collection of stamens 



in a flower 

 Androphore. The column or tube formed 



by the coalescence of the filaments of 



the stamens when the latter are 



monadelphous 

 Androspore, 61 

 Anemophilous, 519 

 Anuulus, 120, 134, 150 

 Antheridial cell iu Gymnosperms, 175 

 Antheridiophore. Any special part of the 



gametophyte on which antheridia 



arise 

 Antheridium. The organ iu which the 



male gametes, usually iintherozoids, 



are developed 

 Antherozoids or spermatozoids. Male 



ciliated gametes, with no ceU-wali 

 Anthesis. The period at which the 



flower-bud opens. 

 Anticlinal. A term applied to those 



cell-walls which are formed at right 



angles to the surface of the growing 



point 

 Antipodal cells, 182 

 Antitropous. Inverted. A term applied 



to the embryo 

 ApheUotropism, 493 

 Aiiocarpous. A term applied to the 



pistil when its constituent carpels are 



not coherent together 

 Apogamy, 126, 523 

 Apogeotropism, 494 

 Apophysis, 119 

 Apospory, 120, 126, 523 

 Apostrophe, 487 

 Apothecium, 84 

 Aquatic phanerogams, 478 



