284 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I4O 



Con T i-io {2d ig4i-ig42) 



a. 2 see + I psce + dee's + d arcs — 2 tfs — i^ years. 



b. 2 see + dee's + d arcs — 2 tfs — li years. 



c. I see — I tf — I year. 



d. I see — I tf — I year. 



The psce of sections a is no longer present in sections b which were 

 taken from the same tip flush. Other branches with a similar reduc- 

 tion in growth layers have two tip flushes. 



Both primary and secondary leaders of Con T i showed no distinc- 

 tion between branch and trunk insofar as either multiplicity or cambial 

 activity was concerned. 



The tree Con T 2 received the same treatment as did Con T i. The 

 leader tip stood 163 cm. above the soil in December 1939 and added 

 82.3 cm. growth by May 22, 1944, when the tree was dissected. Here, 

 sections were taken from each of the eight tip flushes which made up 

 the increase in height of the leader from 1940 into 1944. Text figure 

 51 shows the plan of Con T 2. 



Con T 2-14 {ig40-ig44) 



a. 4 see 4- 3 dee + inc — 8 tfs — 4"^ years. 



b. 4 see + 2 dee + inc — 8 tfs — 4* years. 



Although both of these came from the first tip flush of 1940, there 

 is a reduction of one growth layer from a to h. 



Con T 2-15 {2d 1940-1944) 

 a. 4 see + I dee + inc — 7 tfs — 3^* years. 



Sections 2-15 came from the second tip flush of 1940 and show a 

 reduction of one growth layer from 2-14-b. 



Con T 2-16 (1941-T944) 



a. 3 see 4- I d arc + inc — 6 tfs — 3^ years. 



b. 3 see + 2 d arcs + inc — 6 tfs — 2* years. 



Con T 2-16 includes only the first tip flush of 1941. 



Con T 2-1 1 (2d 1941-1944) 



a. 3 see + I dee + 4 d ares + inc — 5 tfs — 2^^ years. 



b. 2 see -f I dee + d arcs + inc — 4 tfs — 2* years. 



c. 2 see + I dee + d arcs -|- inc — 4 tfs — 2* years. 



d. 2 see 4- d arcs + inc — 3 tfs — 12* years. 



e. I see + inc — 2 tfs — i* years. 

 /. inc— I tf— I year. 



