BY J. J FLETCHER. 



875 



In this species again, 4 is the dominant number, while (for the 

 number of cases examined) 5 is somewhat more common than 3. 

 A seedling with 3 cotyledons is shown in fig.2. 



P. nutans R.Br. — One hundred and ten seedlings, taken as 



they presented themselves, gave the following results : — 



With 3 cotyledons 4 



,, ,, (I bipartite) 5 



4 ,, 51 



,, ,, (1 bipartite) 7 



,, (2 bipartite) 2 



5 ,, 36 



,, ,, (1 bipartite) 1 



6 ,, 4 



The range of variation in this species is wider than in either of 

 tlie two preceding species. The dominant number is still 4, with 

 5 next, and 3 and 6 equal but considerably behind. The Baron 

 missed an example of 6; his list gives 3-5. A young seedling 

 with 6 cotyledons, not yet bent back, is shown in fig. 5. 



P. linearis Andr. — The total number of seedlings obtainable 

 was 67. 



With 3 cotyledons (1 bipartite). 



(1 bipartite) 

 (2 bipartite) 

 (3 bipartite) 



6 



(1 bipartite) 

 (2 bipartite) 



8 

 1 

 1 



28 

 7 

 1 



13 

 1 



„ ,, (I bipartite) 



The dominant number is 5, then 6, and 4 rather behind; but 

 the percentage of transitional forms is higher in this species than 

 in any other I have examined. Two seedlings with bifid or 

 bipartite cotyledons are shown in Plate xxxv., figs. 1.-2 (the 

 first and second figs, in the top row, counting from the left). 



P.pinifolia R.Br. — The number of seedlings examined was! 22. 



With 4 cotyledons 4 



,, 5 ,, 52 



,, ,, ,, (1 bipartite) 



2 



47 



( 1 bipartite) 5 



12 



