196 



internodes hère; 14 is placed 9 mm higher than 15 and 17 10 mm 

 higher than 18. 





l6 



J2^^, ,21 



18 



.,•15 



IP*- 



12 



'^^iSi'.it 



"T'I' *' 

 36, 3537 



_3l33poJ2 3 

 28 I 27^9 



23^/ 21 



Fig. 2. Ferula thyrsiflora, surface of shoot with leaf-scars V'i nat. size. 



Leaf 19 stands solitary, on the place to be expected from the 

 spiral; but 20 — Id and 27 — 34 form very obvious whorls of the 



