350 



SIR J. LUBBOCK PUYTOBIOLOGICAL OBSERVATIOK^S. 



brought down fire from heaven), &c., Avhere tlie ultimate leaves 

 are much divided ; Platanus (fig. 8) and Acer (fig. 9), where the 

 ultimate leaves are palmate ; and Chenojwdiicm (fig. 10), where 

 thej are more or less triangular. 



Fig. 5. 



Fig. a 



Fig. 7. 



Fig. 5. Seedling of Foeniaihm vulgare. Half nat. size. 



Fig. 6. Seedling of Coreopsis fdi folia. Half nat. size. 



Fig. 7. Seedling of Ccrafocephalus fakaius. Kat. size. TLe numerals indicate 



tue successive leaves. 



Some cotyledons are broad, in illustration of which I give 

 figures of liicinns (fig. H), Tm^patiens (fig. 12), Beech (Jl/^«*) 

 (fig. 13), Brassica (fig. 3), IlJppopUe (fig. 14), H^vina (fig. 15), 

 TiueUia* (fig. IG), Blus Ujphma (fig. 17), and Flax {Linum) 

 (fig. 19). AVe find some species with narrow cotyledons and 

 broad leaves, as Menispermum (fig. 18) and Olca ctis^idata (fig. 20); 



lnA!^sfa.^ia coromavdeliona there is an interesting peculiarity. Tlie first 

 pair of leaves of each branch, or at any rate of the lower branches, approximate 

 to the form of the cotyledons. • 



