352 



ZHSSOIfS WITS PLANTS 



both as to kinds and individuals. Some of them, 

 as the potato -blight, black -rot of grape, and apple- 

 scab, are true parasites, deriving 

 their sustenance from the juices of 

 the living host ; and some of them 



Fig. 368. 

 Bulb of Easter lily. 



Fni. ;J69. 



Section showing the formation 

 of the bulbels. 



are parasitic upon animals and even upon other 

 fungi. 



437(1. The vegetable kingdom, aside from the haeteria, may be 

 conveniently ranged under four general heads: 



Thallophytes — algse (sea-weeds), lichens, fungi. 

 Bryophytes — mosses and their allies. 



Pteridophytes — ferns, club-mosses, equisetams, and their allies. 

 Spermatophytes — seed-bearing or flowering plants. Phaner 

 ogamous plants is a synonymous term. 



