l8o MORPHOLOGY AND LIFE HISTORY 



2. Describe its color, shape, attitude, and the relation 

 between it and the base of the aerial branch. Draw 



(X2). 



F. The Mature Terminal Bud: 1 



1. Use material gathered in late autumn, and care- 

 fully dissect away the outer bud-scales. Identify 

 the parts found within. 



2. Make careful drawings, and interpret the signifi- 

 cance of this observation. 



G. The Foliage-leaves: 



1. Describe the number, location, and arrangement 

 of the foliage-leaves. Are they petiolate or sessile? 



2. Observe: 



(a) The coloration (described, for T. sessile, as 



"blotched"). 



(V) The outline of the base, apex, and margin. 

 (c) The venation. 

 H. The Flower: 



1. On what part of the shoot is it borne? Record 

 the presence or absence of a flower-stalk (peduncle). 

 Explain the significance of the specific name of 

 this species (T. sessile). Has the flower an odor? 

 If so, describe it. 



2. Observe. 



(a) The outer circle of parts (calyx) composed 

 of separate sepals. How many sepals are 

 there? Describe them as you did the leaves. 

 NOTE. The term calyx comes from the Greek 

 word kalyx, a cover; the verb is kalypto, to 

 cover. What organ of the moss has its name 

 derived from the same source as calyx? 



(b) The circle of parts (corolla) next within the 

 the calyx, composed of separate petals. How 



