APPENDIX I 

 GLOSSARY OF BOTANICAL TERMS 



Absorption, the act of imbibing a liquid or a gas (see p. 10). 

 Achene, a dry, one-seeded, indehiscent fruit e.g., the individual 



fruits, commonly miscalled "seeds," of a Strawberry or 



Buttercup (p. 285). 

 Actinomorphic, the term used to describe a flower which can 



be divided into two symmetrical halves by two or more 



planes of symmetry, as opposed to Zygomorphic (q.v.). 

 Acyclic, a term used to describe a flower whose parts are 



arranged spirally instead of in whorls ; cf. Cyclic. 

 Adhesion, the union of dissimilar parts of the flower, such as 



the petals and sepals ; cf. Cohesion. 

 Adventitious Roots, those which arise as outgrowths from the 



stem or leaves, and are not branches of the main root. 

 Alkaloid, a general term applied to organic bases, which occur 



in many plants ; cf. Aconitine (p. 130). 

 Alternate, applied to leaves which are arranged spirally on 



the stem, and are not opposite to one another. Also 



known as scattered. 

 Analogous, having the same function, but not necessarily the 



same structure ; cf. Homologous. 

 Androecium, the male organs or stamens of a flower, considered 



as a whole. 



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