PLATE XXXI. 



Figs. 



1. Gucumis sativtis (Cucumber). Secondary flowers 

 axillary to the sepals (s) of the primary one. (Gr. S. 

 Saunders.) p. 20. 

 2-6. Picea excelsa (Spruce). Fig. 2. — Normal ovuliferous 

 scale (upper side). Fig. 3. — Lower side of same. 

 Fig. 4. — Anterior view of abnormal ovuliferous scale 

 and axillary bud. Fig. 5. — Lateral view of the 

 same. Fig. 6. — Posterior view of the same, (d, 

 bract; Ir, two first leaves of bud (= divided ovuli- 

 ferous scale); v, third constituent of scale; h, 

 posterior member of second pair of bud-leaves.) 

 (All after Willkomm.) p. 22. 



