x5n thte, yellowish. 



x6n og a my, the fertilization of a flower, by 



pollen from a flower of another plant, of the 



same species ; cross-fertilizition. 

 xer'O phlles, plants that require great heat 



and little moisture, or plants especially 



adapted to arid regions. epo? : dry, </>iAeu>, 



I love / hence, plants that delight in dry 



places. 



xy'iem, wood. From v\ov. 

 xy'lo e&rp, vAop, wood, /capjros, fruit; hence, 



hard and woody fruit. 



INDEX AND GLOSSARY. 



yeast plant, 411. (Fig. 513.) 



207 



zo 61 'o gy, 17. 



zo Of II us, from the Greek wov, animal, and 

 </>VTOI, plant; pertaining to plants whose 

 pollination is accomplished by the agency of 

 insects or other animals. 



zO'O phyte, 493. 



zyg'O spore, spore formed by the union of two 

 cells, tvnov, a yoke, <rnopa, a seed; hence, a 

 yoked or united seed. 



