SIMPLE PLANTS 



203 



They are as follows : 



Thallophytes ( 

 plant body. 



Algae (Chlorophyl-bearing thallophytes). 



Fungi (Thallophytes without chlorophyl). 



Bryophytes or Moss Plants ( 



Pteridophytes and their allies ( 

 and their allies. 



Spermatophytes or Seed Plants ( 



). Plants possessing a simple 



The Ferns 



Fig. 92. Leaf, Root, 

 Shoot and Flower. 



A. Leaf of a wil- 

 low (Salix 8p.). b., 

 blade ; p., petiole ; s.. 

 stipules. 



B. Diagram to show 

 the essential parts of 

 a "flowering" plant. 

 t.r., tap-root ; b.r., 

 branch root ; cot., seed- 

 leaf (cotyledon) ; i., 

 internode ; a.l., leaf- 

 axil ; ., node ; a.b., 

 axillary bud ; r., re- 

 ceptacle of floral or- 

 gans ; co., calyx ; per., 

 perianth ; co., corolla ; 

 st., stamens (androe- 

 c i u m ) ; pi., pistil 



(gynoecium). 



b r 



tr 



(From C. Stuart Gager's "Fundamentals of Botany," by pei 

 mission of P. Blakiston's Sons & Co.. Publishers.) 



