GLOSSARY 513 



Cyclic, in whorls, 407. 



Cyclosis (Cy-clo'-sis), a rotation, in botany the rotation or flowing round 

 and round of the protoplasm in the cell, 4, 249. 



Cyme, a flower cluster in which the terminal flower in the main axis opens 

 first and the remaining flowers are borne on lateral shoots which arise 

 in the axils of bracts or leaves below and elongate so that the terminal 

 flowers on all the branches reach nearly the same height, 151, 153. 



Cymose, like a cyme, 151, 153. 



Cystocarp (Cys'-to-carp), the spore fruit cluster of the red algae, 261, 262, 

 264. 



Cy tase (Cy'-tase) , an enzyme formed by certain fungi which dissolves cellu- 

 lose walls, 133. 



Cytoplasm. (Cy'-to-plasm), the protoplasm exclusive of the nucleus, 234, 331. 



Deciduous (De-cid'-u-ous), said of trees or shrubs whose leaves all die at the 

 close of the growing season and usually fall in the autumn, though in some 

 trees the dead leaves hang on until mid- winter and spring, 69, 82. 



Dehiscent, said of dry fruits which open to free the seeds, 206, 208, 209. 



Denitrification, the setting free of nitrogen from certain of its compounds, 

 particularly through the action of microorganisms, 127. 



Determinate, applied to the growth of shoots which are terminated rather 

 early in the season by a resting bud; to flower shoots where the main 

 shoot is terminated by a flower, 55, 148. 



Diadelphous (Di-a-del'-phous), stamens in two groups, 147, 165. 



Diastase, a "ferment" or enzyme formed in certain plants which dissolves 

 starch, 22, 115, 133. 



Dichogamous (Di-chog'-a-mous), said of flowers in which the stamens and 

 pistils are of unequal length (one set either shorter or longer than the 

 other), 190. 



Diclinous (Dic'-li-nous), with stamens and pistils in separate flowers, im- 

 perfect, 145. 



Dicotyledons (Di-cot'-y-le-dons), plants with two seed leaves, 62-67, I 54~ 

 171, 433-450. 



Dimorphic (Di-mor'-phic), pertaining to dimorphism, 163. 



Dimorphism (Di-mor'-phism), of two forms, having two forms of leaves; 

 two forms of individuals, etc., 382, 406, 419. 



Dioecious (Di-oe'-cious) , plants with staminate flowers on certain individuals, 

 and pistillate flowers on other individuals, 146, 178. 



Dissepiment, a partition wall, 145. 



Drupe, a fruit with a fleshy exocarp and a stony endocarp; peach, 205, 200- 

 212. 



Ectoplasm (Ec'-to-plasm), the outer, thin, homogeneous layer of protoplasm, 



233, 234. 

 Elater, an elongated sterile cell (or strip from the surface of the spore in the 



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