GLOS S AR Y 



[The definitions of a glossary are often unsatisfactory. It is much better to con- 

 sult the fuller explanations of the text by means of the index. The following glos- 

 sary includes only frequently recurring technical terms. Those which are found only 

 in reasonably close association with their explanation are omitted. The number fol- 

 lowing each definition refers to the page where the term will be found most fully 

 defined.] 



AcTiNOMORPHic : applied to a flower in which the parts in each set are 



similar ; regular. 228. 

 Akene : a one-seeded fruit which ripens dry and seed-like. 212. 

 Alternation of generations: the alternation of gametophyte and 



sporophyte in a life history. 94. 

 Anemophilous : applied to flowers or plants which use the wind as agent 



of pollination. 181. 

 Anisocarpic : applied to a flower whose carpels are fewer than the other 



floral organs. 268. 

 Anther : the sporangium-bearing part of a stamen. 197. 

 Antheridium : the male organ, producing sperms. 16. 

 Antipodal cells : in Angiosperms the cells of the female gametophyte 



at the opposite end of the embryo-sac from the egg-apparatus. 



205. 

 Apetalous : applied to a flower with no petals. 221. 

 Apocarpous : applied to a flower whose carpels are free from one an- 

 other. 226. 

 Archegonium : the female, egg-producing organ of Bryophytes, Pteri- 



dophytes, and Gymnosperms. 100. 

 Archesporium : the first cell or group of cells in the spore-producing 



series. 102. 

 Ascocakp: a special case containing asci. 58. 

 AscospoRE : a spore formed within an ascus. 59. 

 Ascus : a delicate sac (mother-cell) within which ascospores develop. 



59. 

 Asexual spore : one produced usually by cell-division, at least not by 

 cell-union. 9. 



329 



