442 



GLOSSARY. 



Winged. See Alate : bearing a wing or 



wings. 



Withering. See Marcescent. 

 Wood. The hard part of a stem, &c., 



mainly composed of 

 Wood-cells, Woody Jibre or tissue, 68. 

 Woolly. See Lanate and Tomentose: 



clothed with long and tortuous or 



matted hairs. 



Xanthos. Greek for yellow in com- 

 pounds, such as Xanthoplnjll, the yel- 

 low coloring matter in leaves. 



Xenogamy. Fecundation of the ovules of 

 a flower by pollen from some other 

 plant of the same species; cross-fer- 

 tilization; 216. 



Xylinus. Woody, pertaining to wood. 



Zoospore. One of the free-moving spores 



of the lower Cryptogams. 

 Zyfjomorphous (-us). That which can be 



bisected in only one plane into similar 



halves; 175. 



ADDENDA. 



Antidromous, Antidromy. When the course of a spiral is reversed, 157. 

 Infertile (-His). Said of a pistil or flower which fails to set fruit. 

 Polyembryony. The production of two or more embryos in a seed. 284. 

 Saprophytes (-yta). Plants feeding upon decaying vegetable or animal matter. 



